{"id":3255,"date":"2026-07-23T07:11:45","date_gmt":"2026-07-23T07:11:45","guid":{"rendered":"https:\/\/www.thefullerene.com\/?p=3255"},"modified":"2026-07-23T07:15:20","modified_gmt":"2026-07-23T07:15:20","slug":"perovskite-solar-cell-commercialization-reliability","status":"publish","type":"post","link":"https:\/\/www.thefullerene.com\/zh\/perovskite-solar-cell-commercialization-reliability\/","title":{"rendered":"\u9499\u949b\u77ff\u592a\u9633\u80fd\u7535\u6c60\u5546\u4e1a\u5316\uff1a\u4e3a\u4f55\u53ef\u9760\u6027\u3001\u6807\u51c6\u53ca\u6750\u6599\u4e00\u81f4\u6027\u6bd4\u521b\u7eaa\u5f55\u6548\u7387\u66f4\u4e3a\u5173\u952e"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Perovskite solar cell commercialization<\/strong> is entering a different phase. For more than a decade, progress was measured primarily by laboratory efficiency records. That metric still matters, but it is no longer sufficient to determine whether a perovskite technology can become a repeatable, financeable, and globally supplied product.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The commercial question is changing from \u201cHow efficient is the best cell?\u201d to \u201cCan the same architecture be manufactured repeatedly, survive standardized stress tests, maintain output in the field, and use qualified materials from controlled supply chains?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recent developments illustrate this shift. GCL System Integration reported a certified conversion efficiency of 33.44% for a flexible perovskite\u2013silicon tandem cell.<sup><a href=\"#ref-1\">[1]<\/a><\/sup> Qcells, meanwhile, has advanced tandem technology through reliability testing and certification aligned with IEC and UL 61215 requirements.<sup><a href=\"#ref-2\">[2]<\/a><\/sup> These are different milestones: one demonstrates the efficiency frontier, while the other addresses the reliability and standardization framework required for commercial deployment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The next stage of the industry will depend on connecting these two achievements. High efficiency must be reproduced across large areas, repeated production runs, environmental stress tests, and field deployments. That connection requires process control, interface engineering, qualified raw materials, reliable documentation, and manufacturing data\u2014not efficiency records alone.<\/p>\n\n\n\n<h2 id=\"why-perovskite-solar-cell-commercialization-is-different-from-laboratory-research\" class=\"wp-block-heading\">Why Perovskite Solar Cell Commercialization Is Different from Laboratory Research<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A research laboratory may optimize a small number of cells using carefully selected substrates, fresh precursor solutions, experienced operators, and tightly controlled deposition conditions. A manufacturing line must reproduce acceptable performance across thousands or millions of interconnected cells.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This creates several differences between a laboratory result and a commercial product:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>a laboratory can discard unsuccessful devices, while production must control yield;<\/li>\n\n\n\n<li>a small cell may tolerate local uniformity differences that become serious across a module;<\/li>\n\n\n\n<li>a research team may adjust processing by observation, while production requires defined process windows;<\/li>\n\n\n\n<li>a paper may report the champion device, while a manufacturer must manage the full efficiency distribution;<\/li>\n\n\n\n<li>a short stability test may support publication, while a product must satisfy qualification, warranty, and field-performance expectations;<\/li>\n\n\n\n<li>a single raw-material batch may support a study, while manufacturing requires repeated batches with controlled specifications.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The United States Department of Energy identifies efficiency, durability, replicability, minimum module area, manufacturing cost, energy yield, and levelized cost of electricity as connected commercialization factors.<sup><a href=\"#ref-3\">[3]<\/a><\/sup> Its Perovskite Photovoltaic Accelerator for Commercializing Technologies, or PACT, is developing standardized laboratory and field testing, accelerated test protocols, energy-yield models, and bankability studies.<sup><a href=\"#ref-4\">[4]<\/a><\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This reflects a basic industrial principle: a record cell proves possibility, but standardized production and validation prove commercial readiness.<\/p>\n\n\n\n<h2 id=\"efficiency-records-remain-important-but-they-answer-only-one-question\" class=\"wp-block-heading\">Efficiency Records Remain Important\u2014but They Answer Only One Question<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Efficiency determines how much incident solar energy a device converts into electrical output. Higher efficiency may increase power density, reduce installation area, and improve the potential economics of balance-of-system components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Perovskite\u2013silicon tandems are especially attractive because the perovskite top cell and silicon bottom cell absorb different portions of the solar spectrum. This architecture can move beyond the practical efficiency range of conventional single-junction silicon cells.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Flexible tandem devices add another strategic dimension. Their lower weight and conformability may support building-integrated photovoltaics, mobile systems, vehicles, aerospace concepts, and surfaces unsuitable for conventional rigid glass modules.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GCL SI\u2019s reported 33.44% certified flexible tandem result demonstrates how rapidly this efficiency frontier is progressing.<sup><a href=\"#ref-1\">[1]<\/a><\/sup> Peer-reviewed research has also reported flexible perovskite\u2013silicon tandem cells exceeding 33% efficiency.<sup><a href=\"#ref-5\">[5]<\/a><\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, a certified cell efficiency does not by itself establish:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>commercial module efficiency;<\/li>\n\n\n\n<li>manufacturing yield;<\/li>\n\n\n\n<li>annual degradation rate;<\/li>\n\n\n\n<li>mechanical durability under repeated bending;<\/li>\n\n\n\n<li>resistance to heat, humidity, UV exposure, and thermal cycling;<\/li>\n\n\n\n<li>cost per watt at production scale;<\/li>\n\n\n\n<li>field energy yield;<\/li>\n\n\n\n<li>warranty feasibility;<\/li>\n\n\n\n<li>bankability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Efficiency should therefore be treated as one commercialization gate, not as the complete commercialization verdict.<\/p>\n\n\n\n<h2 id=\"reliability-is-becoming-the-main-commercial-filter\" class=\"wp-block-heading\">Reliability Is Becoming the Main Commercial Filter<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Commercial photovoltaic modules must operate through prolonged exposure to sunlight, elevated temperature, moisture, temperature changes, mechanical loading, electrical bias, and local environmental stresses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Perovskite materials can be sensitive to moisture, oxygen, heat, illumination, ion migration, interfacial reactions, and electrode diffusion. The full module must therefore protect not only the perovskite absorber but also the transport layers, electrodes, interconnections, edge seals, and encapsulation system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qcells reported in 2025 that its tandem modules passed critical stress tests performed according to IEC 61215-2:2021 and UL 61215-2:2021. The reported test sequence included UV preconditioning, 200 thermal cycles, humidity-freeze testing, and 1,000 hours of damp-heat exposure, with independent confirmation by T\u00dcV Rheinland.<sup><a href=\"#ref-6\">[6]<\/a><\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In July 2026, Qcells announced certification meeting both IEC and UL 61215 criteria for its tandem modules.<sup><a href=\"#ref-2\">[2]<\/a><\/sup> This does not prove a 25- or 30-year field lifetime. Qualification testing is designed to expose important early failure modes under standardized accelerated conditions; it is not a substitute for long-term outdoor data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nevertheless, certification is commercially significant because it creates a common language between manufacturers, testing organizations, insurers, project developers, distributors, and financial institutions.<\/p>\n\n\n\n<h2 id=\"why-standardization-matters-for-bankability\" class=\"wp-block-heading\">Why Standardization Matters for Bankability<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bankability is the level of confidence that a technology can deliver predictable technical and financial performance over the life of a project. It is not determined by cell efficiency alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A bankable module requires evidence covering:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>repeatable manufacturing quality;<\/li>\n\n\n\n<li>recognized test methods;<\/li>\n\n\n\n<li>traceable production records;<\/li>\n\n\n\n<li>field-performance data;<\/li>\n\n\n\n<li>controlled bill of materials;<\/li>\n\n\n\n<li>supplier qualification;<\/li>\n\n\n\n<li>failure analysis;<\/li>\n\n\n\n<li>warranty support;<\/li>\n\n\n\n<li>financially credible manufacturing capacity.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Perovskite technologies create a particular standardization challenge because compositions, interfaces, transport materials, encapsulation systems, and architectures continue to evolve quickly. A test method suitable for one architecture may not fully reveal failure modes in another.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The DOE\u2019s PACT program addresses this problem by combining accelerated testing, outdoor validation, energy-yield modeling, and commercial bankability analysis.<sup><a href=\"#ref-4\">[4]<\/a><\/sup> Its purpose is not to slow innovation. It is to create enough comparable evidence for innovation to be evaluated outside the laboratory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For manufacturers, this means future competitiveness will depend partly on the quality of their data. A company that reports a high efficiency but cannot document repeatability, degradation, module construction, and test conditions may be less commercially advanced than a company with a slightly lower efficiency and stronger validation.<\/p>\n\n\n\n<h2 id=\"scale-up-changes-the-meaning-of-material-quality\" class=\"wp-block-heading\">Scale-Up Changes the Meaning of Material Quality<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At laboratory scale, material quality is often summarized by a nominal purity value. At manufacturing scale, that description becomes inadequate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Industrial material quality also includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>batch-to-batch consistency;<\/li>\n\n\n\n<li>impurity identity rather than purity percentage alone;<\/li>\n\n\n\n<li>solution or evaporation behavior;<\/li>\n\n\n\n<li>storage stability;<\/li>\n\n\n\n<li>particle and aggregate behavior;<\/li>\n\n\n\n<li>packaging compatibility;<\/li>\n\n\n\n<li>supplier change control;<\/li>\n\n\n\n<li>repeatable process performance.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A raw material may satisfy a general chemical assay yet behave inconsistently during coating, evaporation, drying, annealing, or interface formation. Once a process moves toward continuous or high-throughput manufacturing, such variation can reduce yield even when champion devices remain efficient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why commercialization shifts procurement from \u201cCan this material produce a working cell?\u201d to \u201cCan this material support a controlled process window over repeated production runs?\u201d<\/p>\n\n\n\n<h2 id=\"fullerene-c60-as-a-case-study-in-material-consistency\" class=\"wp-block-heading\"><a href=\"https:\/\/www.thefullerene.com\/about-fullerene\/what-is-fullerene-c60\/\">Fullerene C60<\/a> as a Case Study in Material Consistency<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.thefullerene.com\/about-fullerene\/what-is-fullerene-c60\/\">Fullerene C60<\/a> is widely used as an electron-transporting or electron-selective material in inverted p-i-n perovskite cells and perovskite\u2013silicon tandem architectures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its commercial relevance comes from several characteristics:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>electron-accepting molecular behavior;<\/li>\n\n\n\n<li>compatibility with thin-film architectures;<\/li>\n\n\n\n<li>ability to be deposited by thermal evaporation;<\/li>\n\n\n\n<li>established use in high-efficiency inverted perovskite devices;<\/li>\n\n\n\n<li>relevance to perovskite\/C60 interface engineering.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">However, the presence of C60 in a device stack does not mean all C60 sources behave identically.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A 2024 <em>Nature Communications<\/em> study described thermally evaporated C60 as a near-ubiquitous electron transport layer in advanced p-i-n perovskite devices. The researchers found that some commercial as-received C60 source materials could coalesce during repeated thermal evaporation, reducing process reproducibility. Purification by sublimation improved repeatability under the studied conditions.<sup><a href=\"#ref-7\">[7]<\/a><\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This result is commercially important because it separates two questions:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Does the material contain mostly C60?<\/li>\n\n\n\n<li>Does the material behave consistently during repeated manufacturing?<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A supplier specification based only on HPLC purity may not fully describe evaporation behavior, elemental residues, residual solvents, non-eluting impurities, or batch variation. HPLC purity and elemental purity are also different measurements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Terms such as \u201cmetal-free\u201d should therefore be supported by defined analytical evidence. A catalyst-free or metal-free production route may reduce certain contamination risks, but the final material must still be tested if the buyer requires limits for nickel, cobalt, palladium, iron, or other elements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For C60 used in sensitive photovoltaic processes, buyers should evaluate material identity, chromatographic purity, relevant elemental data, source behavior, batch consistency, documentation, packaging, and change-control procedures.<\/p>\n\n\n\n<h2 id=\"why-flexible-perovskite-devices-raise-the-material-control-requirement\" class=\"wp-block-heading\">Why Flexible Perovskite Devices Raise the Material-Control Requirement<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Flexible perovskite devices are often presented as easier to manufacture because they can potentially use lightweight substrates and roll-to-roll processes. In practice, flexibility introduces additional controls.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A flexible device may experience:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>substrate deformation during coating;<\/li>\n\n\n\n<li>nonuniform film thickness;<\/li>\n\n\n\n<li>residual mechanical stress;<\/li>\n\n\n\n<li>cracking or delamination during bending;<\/li>\n\n\n\n<li>changes in electrode resistance;<\/li>\n\n\n\n<li>interface fatigue;<\/li>\n\n\n\n<li>encapsulation failure at edges or folds.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thin transport layers are particularly sensitive because small thickness or morphology differences can influence charge extraction, shunting, and interfacial recombination.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recent flexible tandem records show that high efficiency is technically possible. The commercialization challenge is maintaining the same interface quality across larger areas, repeated bending, continuous coating, module interconnection, and environmental testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For flexible and roll-to-roll systems, material consistency is therefore not a secondary procurement issue. It becomes part of mechanical reliability and production yield.<\/p>\n\n\n\n<h2 id=\"manufacturing-yield-matters-more-than-the-champion-device\" class=\"wp-block-heading\">Manufacturing Yield Matters More Than the Champion Device<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A champion cell is the best device selected from a group. A commercial production line is judged by the distribution of all devices produced.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider two hypothetical processes:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Process<\/th><th>Best Device<\/th><th>Average Performance<\/th><th>Manufacturing Character<\/th><\/tr><\/thead><tbody><tr><td>Process A<\/td><td>Very high efficiency<\/td><td>Wide variation and frequent failures<\/td><td>Strong research result but weak production readiness<\/td><\/tr><tr><td>Process B<\/td><td>Slightly lower peak efficiency<\/td><td>Narrow variation and high yield<\/td><td>Potentially stronger commercialization platform<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The second process may have more commercial value because equipment utilization, material consumption, quality inspection, rework, and warranty risk are connected to yield.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Commercialization reporting should therefore increasingly include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sample count;<\/li>\n\n\n\n<li>median and average performance;<\/li>\n\n\n\n<li>distribution width;<\/li>\n\n\n\n<li>module area;<\/li>\n\n\n\n<li>production yield;<\/li>\n\n\n\n<li>repeatability across batches;<\/li>\n\n\n\n<li>performance after standardized stress testing.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This is also why consistent raw materials matter. Small changes in precursor chemistry, transport-layer behavior, solvent composition, film deposition, or residual contaminants can widen the production distribution even when the best cell remains unaffected.<\/p>\n\n\n\n<h2 id=\"ai-driven-materials-discovery-will-increase-the-need-for-standardized-inputs\" class=\"wp-block-heading\">AI-Driven Materials Discovery Will Increase the Need for Standardized Inputs<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Artificial intelligence and machine learning are increasingly being explored for perovskite composition screening, process optimization, stability prediction, and materials discovery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These tools may reduce the time required to search large formulation spaces. They do not remove the need for material standardization.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An AI model trained on experiments that use poorly defined batches may incorrectly attribute a performance change to molecular design when it was actually caused by impurity variation, storage history, deposition conditions, or operator differences.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The industrial value of AI therefore depends on structured metadata, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>raw-material batch identity;<\/li>\n\n\n\n<li>test methods;<\/li>\n\n\n\n<li>purity and impurity information;<\/li>\n\n\n\n<li>processing history;<\/li>\n\n\n\n<li>environmental conditions;<\/li>\n\n\n\n<li>device architecture;<\/li>\n\n\n\n<li>measurement protocol;<\/li>\n\n\n\n<li>failed as well as successful experiments.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">AI is likely to make high-quality material data more valuable, not less valuable. Standardized raw materials provide the stable experimental baseline required to distinguish genuine formulation effects from supply-chain noise.<\/p>\n\n\n\n<h2 id=\"the-six-commercialization-gates\" class=\"wp-block-heading\">The Six Commercialization Gates<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A practical framework for evaluating perovskite solar cell commercialization is to consider six connected gates.<\/p>\n\n\n\n<h3 id=\"gate-1-relevant-area-efficiency\" class=\"wp-block-heading\">Gate 1: Relevant-area efficiency<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The device must deliver competitive performance at a cell or module area relevant to the intended product. Small-area records remain scientifically useful but cannot be treated as module specifications.<\/p>\n\n\n\n<h3 id=\"gate-2-reliability\" class=\"wp-block-heading\">Gate 2: Reliability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The design must survive heat, humidity, UV exposure, temperature cycling, mechanical stress, electrical bias, and other relevant failure conditions.<\/p>\n\n\n\n<h3 id=\"gate-3-manufacturing-repeatability\" class=\"wp-block-heading\">Gate 3: Manufacturing repeatability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The process must produce a narrow performance distribution with acceptable yield, throughput, and material utilization.<\/p>\n\n\n\n<h3 id=\"gate-4-material-and-supply-chain-control\" class=\"wp-block-heading\">Gate 4: Material and supply-chain control<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Critical materials must have clear specifications, qualified suppliers, batch documentation, consistent behavior, and change-control systems.<\/p>\n\n\n\n<h3 id=\"gate-5-standardized-validation\" class=\"wp-block-heading\">Gate 5: Standardized validation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Testing must use credible protocols that allow customers, laboratories, insurers, and financiers to compare results.<\/p>\n\n\n\n<h3 id=\"gate-6-bankability-and-field-evidence\" class=\"wp-block-heading\">Gate 6: Bankability and field evidence<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The product must build a credible case for energy yield, degradation, warranty support, manufacturing continuity, and long-term project economics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A technology that passes only the efficiency gate is not yet a commercial photovoltaic platform.<\/p>\n\n\n\n<h2 id=\"what-material-buyers-should-ask-before-scale-up\" class=\"wp-block-heading\">What Material Buyers Should Ask Before Scale-Up<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Procurement teams sourcing C60, C70, transport materials, interface modifiers, precursors, or other perovskite inputs should request information that supports both laboratory testing and scale-up.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Buyer Question<\/th><th>Commercial Reason<\/th><\/tr><\/thead><tbody><tr><td>What is the exact product identity?<\/td><td>Prevents confusion between pristine materials, derivatives, mixtures, and application-specific forms<\/td><\/tr><tr><td>How is purity measured?<\/td><td>A purity percentage without a test method has limited technical meaning<\/td><\/tr><tr><td>Is a batch-specific COA available?<\/td><td>Connects the specification to the material actually supplied<\/td><\/tr><tr><td>Are relevant elemental impurities tested?<\/td><td>HPLC purity does not define metal content<\/td><\/tr><tr><td>Can repeated batches meet the same specification?<\/td><td>Supports production consistency and process qualification<\/td><\/tr><tr><td>Has processing behavior been evaluated?<\/td><td>Evaporation, coating, dissolution, and drying behavior may affect yield<\/td><\/tr><tr><td>What packaging and storage conditions apply?<\/td><td>Reduces contamination, moisture, light, and handling variation<\/td><\/tr><tr><td>Is supplier change control available?<\/td><td>Unexpected process or raw-material changes can invalidate a qualified manufacturing process<\/td><\/tr><tr><td>Can samples and scale-up quantities be linked?<\/td><td>A laboratory sample is less useful if the equivalent material cannot be supplied later<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For C60-related sourcing, technical teams may review <a href=\"\/high-purity-c60-perovskite-silicon-tandem-solar-cells\/\">high-purity C60 requirements for perovskite\u2013silicon tandem cells<\/a> and <a href=\"\/fullerenes-perovskite-solar-cells-interfacial-engineering\/\">fullerene interfacial engineering in perovskite solar cells<\/a>.<\/p>\n\n\n\n<h2 id=\"what-the-2026-milestones-actually-tell-the-industry\" class=\"wp-block-heading\">What the 2026 Milestones Actually Tell the Industry<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The efficiency, certification, pilot-line, and AI-related developments highlighted across the industry should not be treated as unrelated headlines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Together, they show that perovskite competition is moving into four parallel areas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>performance:<\/strong> higher cell and module efficiency;<\/li>\n\n\n\n<li><strong>reliability:<\/strong> standardized environmental and mechanical testing;<\/li>\n\n\n\n<li><strong>production:<\/strong> larger areas, automated lines, and controlled yield;<\/li>\n\n\n\n<li><strong>data quality:<\/strong> standardized materials and experimental records suitable for process optimization and AI analysis.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The strongest companies will not necessarily be those with one isolated record. They will be those that connect all four areas into a qualified product platform.<\/p>\n\n\n\n<h2 id=\"outlook-what-will-define-the-next-stage-of-commercialization\" class=\"wp-block-heading\">Outlook: What Will Define the Next Stage of Commercialization?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Through the remainder of the decade, perovskite solar cell commercialization is likely to be judged increasingly through product-level evidence.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Important indicators will include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>certified module efficiency at commercially relevant size;<\/li>\n\n\n\n<li>qualification under recognized IEC and UL frameworks;<\/li>\n\n\n\n<li>multi-year outdoor performance data;<\/li>\n\n\n\n<li>repeatable production yield;<\/li>\n\n\n\n<li>stable and traceable material supply;<\/li>\n\n\n\n<li>validated encapsulation and lead-management strategies;<\/li>\n\n\n\n<li>credible cost and energy-yield models;<\/li>\n\n\n\n<li>customer orders followed by repeat deployment;<\/li>\n\n\n\n<li>warranty and insurance acceptance.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Efficiency records will continue to attract attention, but the industry\u2019s decisive advances will increasingly appear less dramatic: narrower process variation, fewer defective modules, better supplier documentation, stronger accelerated testing, and longer field operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These are not secondary achievements. They are the mechanisms through which a laboratory technology becomes an industrial product.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Perovskite solar cell commercialization is moving beyond a competition based only on record efficiency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recent flexible tandem results demonstrate exceptional scientific potential. IEC and UL certification milestones show progress toward standardized reliability. DOE-led validation programs show that field testing, replicability, energy yield, and bankability are now central industry concerns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the material level, C60 provides a useful example. A nominally high-purity material may still create manufacturing variation if evaporation behavior, impurities, packaging, or batch consistency are not controlled. This same principle applies throughout the perovskite supply chain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The next commercial winners will combine efficient device architecture with reliability engineering, manufacturing discipline, qualified materials, standardized validation, and trustworthy performance data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Record efficiency proves what perovskite technology can achieve. Reliability and repeatability will determine what the market is willing to buy.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<h3 id=\"what-is-the-main-challenge-in-perovskite-solar-cell-commercialization\" class=\"wp-block-heading\">What is the main challenge in perovskite solar cell commercialization?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The main challenge is converting high laboratory efficiency into reliable, repeatable, large-area products. This requires durability, manufacturing yield, standardized testing, material consistency, and credible field-performance data.<\/p>\n\n\n\n<h3 id=\"does-a-record-efficiency-perovskite-cell-mean-the-technology-is-commercially-ready\" class=\"wp-block-heading\">Does a record-efficiency perovskite cell mean the technology is commercially ready?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. Record efficiency demonstrates technical potential, but commercial readiness also requires module-scale performance, reliability testing, production repeatability, controlled supply chains, and bankability.<\/p>\n\n\n\n<h3 id=\"why-are-iec-and-ul-61215-standards-important-for-perovskite-modules\" class=\"wp-block-heading\">Why are IEC and UL 61215 standards important for perovskite modules?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">IEC and UL 61215 frameworks provide recognized environmental and durability tests for photovoltaic modules. Passing these tests supports product comparison and commercial confidence, although it does not by itself prove a multi-decade field lifetime.<\/p>\n\n\n\n<h3 id=\"what-does-bankability-mean-for-perovskite-solar-technology\" class=\"wp-block-heading\">What does bankability mean for perovskite solar technology?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bankability means that investors, project developers, insurers, and customers have sufficient evidence to trust the product\u2019s technical performance, manufacturing continuity, degradation behavior, warranty support, and project economics.<\/p>\n\n\n\n<h3 id=\"why-does-material-consistency-matter-in-perovskite-manufacturing\" class=\"wp-block-heading\">Why does material consistency matter in perovskite manufacturing?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Material variation can change coating, evaporation, crystallization, interface formation, device yield, and degradation. Commercial manufacturing therefore requires repeatable material behavior across multiple batches, not only a high nominal purity value.<\/p>\n\n\n\n<h3 id=\"why-is-c60-important-in-perovskite-solar-cells\" class=\"wp-block-heading\">Why is C60 important in perovskite solar cells?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C60 is widely used as an electron-transporting or electron-selective material in inverted perovskite cells and tandem architectures. Its performance depends on interface quality, deposition behavior, purity, and batch consistency.<\/p>\n\n\n\n<h3 id=\"does-higher-hplc-purity-guarantee-better-c60-device-performance\" class=\"wp-block-heading\">Does higher HPLC purity guarantee better C60 device performance?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. HPLC purity is one useful measurement, but device performance may also depend on elemental impurities, residual solvents, evaporation behavior, aggregation, packaging, film morphology, and the complete device process.<\/p>\n\n\n\n<h3 id=\"will-ai-solve-perovskite-manufacturing-variability\" class=\"wp-block-heading\">Will AI solve perovskite manufacturing variability?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">AI may help optimize materials and processes, but it requires standardized and traceable input data. Inconsistent raw materials or incomplete experimental records can reduce the reliability of AI-generated conclusions.<\/p>\n\n\n\n<h2 id=\"cta\" class=\"wp-block-heading\">CTA<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Developing perovskite solar cells, tandem devices, electron-transport layers, or scale-up manufacturing processes?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">XCT can support research and industrial inquiries for <a href=\"https:\/\/www.thefullerene.com\/about-fullerene\/what-is-fullerene-c60\/\">high-purity Fullerene C60<\/a> and C70, including available purity options, batch-specific COA, MSDS\/SDS, sample availability, packaging details, and international shipping support.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Material selection should be based on device architecture, deposition method, target purity, analytical requirements, and scale-up plans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/request\/\">Submit your C60 or C70 requirement<\/a> with the target product, purity, quantity, application, processing method, destination country, and required documentation.<\/p>\n\n\n\n<h2 id=\"references\" class=\"wp-block-heading\">References<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">[1] TaiyangNews. \u201cGCL SI Achieves 33.44% Efficiency for Flexible Perovskite-Silicon Tandem Cells.\u201d July 22, 2026. The report states that GCL SI announced a 33.44% certified conversion efficiency verified by CPVT. <a href=\"https:\/\/taiyangnews.info\/markets\/china-solar-pv-news-snippets-july-22-2026\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[2] Qcells. \u201cQcells Becomes the First Company to Achieve UL and IEC Certification by T\u00dcV Rheinland on Next-Generation Solar Technology.\u201d July 2026. <a href=\"https:\/\/us.qcells.com\/blog\/qcells-becomes-the-first-company-to-achieve-ul-and-iec-certification-by-tuv-rheinland-on-next-generation-solar-technology\/\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[3] U.S. Department of Energy. \u201cSummary: Performance Targets for Perovskite PV Research, Development, and Demonstration.\u201d The targets address efficiency, durability, replicability, device area, and commercialization readiness. <a href=\"https:\/\/www.energy.gov\/cmei\/systems\/summary-performance-targets-perovskite-pv-research-development-and-demonstration\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[4] U.S. Department of Energy. \u201cPerovskite Research Directions.\u201d The page describes PACT field and laboratory testing, accelerated protocols, energy-yield models, and bankability studies. <a href=\"https:\/\/www.energy.gov\/cmei\/systems\/perovskite-research-directions\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[5] Sun Y, Li F, Zhang H, et al. \u201cFlexible perovskite\/silicon tandem solar cells with 33.6% efficiency.\u201d <em>Nature<\/em>. 2026;649:59\u201364. <a href=\"https:\/\/www.nature.com\/articles\/s41586-025-09849-4\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[6] Qcells. \u201cQcells Achieves Key Tandem Solar Module Stability Milestone.\u201d May 14, 2025. The company reported stress testing under IEC 61215-2:2021 and UL 61215-2:2021 requirements, independently confirmed by T\u00dcV Rheinland. <a href=\"https:\/\/us.qcells.com\/blog\/qcells-achieves-key-tandem-solar-module-stability-milestone\/\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[7] Said AA, Aydin E, Ugur E, et al. \u201cSublimed C60 for efficient and repeatable perovskite-based solar cells.\u201d <em>Nature Communications<\/em>. 2024;15:708. The study links C60 source-material quality and repeated thermal evaporation with device reproducibility. <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-44974-0\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[8] Berry JJ, et al. \u201cThe Path to Perovskite Commercialization: A Perspective from the United States Solar Energy Technologies Office.\u201d <em>ACS Energy Letters<\/em>. 2022. <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsenergylett.2c00698\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[9] Zhu P, Chen C, Dai J, et al. \u201cToward the Commercialization of Perovskite Solar Modules.\u201d <em>Advanced Materials<\/em>. 2024;36:2307357. <a href=\"https:\/\/doi.org\/10.1002\/adma.202307357\" target=\"_blank\" rel=\"noreferrer noopener\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Perovskite solar cell commercialization is entering a different phase. For more than a decade, progress was measured primarily by laboratory efficiency records. That metric still matters, but it is no longer sufficient to determine whether a perovskite technology can become a repeatable, financeable, and globally supplied product. The commercial question is changing from \u201cHow efficient [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-3255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/posts\/3255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/comments?post=3255"}],"version-history":[{"count":1,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/posts\/3255\/revisions"}],"predecessor-version":[{"id":3257,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/posts\/3255\/revisions\/3257"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/media\/3256"}],"wp:attachment":[{"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/media?parent=3255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/categories?post=3255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thefullerene.com\/zh\/wp-json\/wp\/v2\/tags?post=3255"}],"curies":[{"name":"\u5de5\u4f5c\u6587\u4ef6","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}