Progress in Photovoltaics最新文献

{"title":"Photovoltaics Literature Survey (No. 208)","authors":"Ziv Hameiri","doi":"10.1002/pip.70129","DOIUrl":"https://doi.org/10.1002/pip.70129","url":null,"abstract":"","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 8","pages":"1059-1063"},"PeriodicalIF":10.2,"publicationDate":"2026-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Demonstration of GaAs-Based Photovoltaics on Acoustically Spalled Surfaces Grown by MOCVD","authors":"Elijah Sacchitella,&nbsp;Brandon Bogner,&nbsp;Stephen Polly,&nbsp;Andrew Sindermann,&nbsp;Pablo Coll,&nbsp;Mariana Bertoni,&nbsp;Seth Hubbard","doi":"10.1002/pip.70103","DOIUrl":"https://doi.org/10.1002/pip.70103","url":null,"abstract":"<div>\u0000 \u0000 <p>This study demonstrates the potential of sonic lift-off (SLO) technology for repeatable substrate reuse in gallium arsenide (GaAs)–based photovoltaics (PVs), offering a pathway toward cost effective production for terrestrial PV applications. Single-junction GaAs solar cells fabricated on acoustically spalled substrates achieved performance metrics comparable with those grown on standard commercial substrates, exhibiting short-circuit current densities (\u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>J</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>s</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math>) of approximately 26.2–26.4 mA/cm², open-circuit voltages (\u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>V</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math>) around 1001 mV, fill factors (FFs) of 84%, and AM1.5G efficiencies near 22%. These results confirm that one reuse cycle can be realized without a performance penalty, offering a direct pathway to reducing substrate cost in fabrication. However, subsequent reuse of the substrates highlighted critical challenges, as devices fabricated from reused substrates showed significant degradation in performance (\u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>J</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>s</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> of 15.5 mA/cm², \u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>V</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> of 748 mV, FF of 72%, and efficiency of 8%), primarily due to degradation of the epitaxial structure resulting from repeated spalling cycles.</p>\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 8","pages":"1023-1036"},"PeriodicalIF":10.2,"publicationDate":"2026-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148533362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Need for Fundamental Photovoltaics Research to Ensure Energy Security","authors":"Rebecca Saive,&nbsp;Gavin Conibeer,&nbsp;Lisanne M. Einhaus,&nbsp;Jean-François Guillemoles,&nbsp;Koami Soulemane Hayibo,&nbsp;Karin Hinzer,&nbsp;Jacob J. Krich,&nbsp;Martha Lenio,&nbsp;Michael P. Nielsen,&nbsp;Frederick U. Nitta,&nbsp;Ian R. Sellers,&nbsp;Daniel Suchet,&nbsp;Eric Tervo,&nbsp;Tom Tiedje,&nbsp;Jelle Westerhof","doi":"10.1002/pip.70105","DOIUrl":"https://doi.org/10.1002/pip.70105","url":null,"abstract":"<p>Despite the commercial maturity of photovoltaic (PV) technology, fundamental research remains essential for continued innovation, energy resilience, and strategic independence. The low cost and distributed nature of solar and wind power make them uniquely suited to deliver secure electricity without reliance on fuel supply chains. However, these strengths are the result of decades of foundational scientific inquiry, and continued progress depends on sustained support for such work. This paper outlines a future-oriented agenda for fundamental PV research, addressing challenges in materials, device architectures, characterization, and system integration. Drawing on discussions from the 53rd IEEE Photovoltaic Specialists Conference (PVSC) in Montreal, we critically examine the narrative that PV is a “solved” problem. We argue that deep scientific exploration is not only vital for unlocking next-generation technologies but also for training the skilled workforce required to maintain technological leadership and to support the reliable functioning of national energy infrastructure. We conclude with targeted recommendations for funding agencies and policymakers on how to structure research support to maximize long-term impact.</p>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 8","pages":"1003-1009"},"PeriodicalIF":10.2,"publicationDate":"2026-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Simulation and Experimental Validation of High-Efficiency Electrostatic Adsorption Dust Extraction for Photovoltaic Panels","authors":"Yueru Wang,&nbsp;Le Li,&nbsp;Yunpeng Liu,&nbsp;Haoyi Li,&nbsp;Yifei Liu,&nbsp;Xiaoxuan Yin,&nbsp;Xinyue Wu,&nbsp;Wei Xiao,&nbsp;Bing Luo,&nbsp;Zheng Zhong,&nbsp;Haofeng Zhang,&nbsp;Lei Liu","doi":"10.1002/pip.70081","DOIUrl":"https://doi.org/10.1002/pip.70081","url":null,"abstract":"<div>\u0000 \u0000 <p>Traditional electrostatic adsorption (ESA) dust extraction devices can remove dust from photovoltaic (PV) panels. However, their dust extraction efficiency is limited. To achieve efficient dust extraction, this study optimizes an ESA dust extraction device. First, a multiphysics field-coupled simulation model is established in COMSOL Multiphysics, integrating electrostatic, charge transfer, and charged particle tracking to analyze the electric field distribution and the dust extraction process. Second, the optimal structure of the ESA dust extraction device is determined by calculating the dust extraction rate and dust extraction efficiency. Finally, an experimental platform for ESA dust extraction is constructed to verify the reliability of the simulation model. The effect of the ESA dust extraction on the power generation efficiency of PV panels is also investigated. Simulation results show that the optimized ESA device achieves a dust extraction efficiency of 81.50% after 0.6 s of operation. After 6 s of operation, the dust extraction rate of the device is 99.79%. Experimental results show that the power generation efficiency of the PV panels after dust extraction reaches 98.45% of that under dust-free conditions. This study provides an effective guide for the further development of ESA dust extraction technology for PV panels.</p>\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"843-865"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid Screening and Multiscale Evaluation System for the Corrosion Resistance of Front Metal Gridlines in TOPCon Solar Cells","authors":"Ting Ye,&nbsp;Pengxiang Hou,&nbsp;Bin Yu,&nbsp;Zihao Sun,&nbsp;Xiaojie Liu,&nbsp;Xiajie Meng,&nbsp;Shenghua Ma","doi":"10.1002/pip.70087","DOIUrl":"https://doi.org/10.1002/pip.70087","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper proposes a rapid and cost-effective method to evaluate the corrosion resistance of front metal gridlines in TOPCon single-glass solar modules. It addresses the failure risks of modules in humid, high-temperature, and acidic environments, whereas traditional stability testing methods are time-consuming and costly. This research employs an acetic acid ultrasonic corrosion test to simulate high-temperature, high-humidity conditions and electrolyte penetration, thereby rapidly accelerating the corrosion process for efficient assessment of metal gridline corrosion resistance. Compared to the conventional 96-h pressure cooker test (PCT 96), the optimized acetic acid ultrasonic corrosion test requires only 5 min to yield valid results. Test results obtained from four representative TOPCon cells with different paste compositions align with the trends observed in their corresponding PCT 96 module tests. Thus, the cell-level acetic acid ultrasonic corrosion test serves as an effective method for rapid evaluation of metal gridline corrosion resistance. Further elemental analysis reveals the underlying causes of performance differences, providing new insights and a theoretical basis for the screening and reliable design of corrosion-resistant front-side metal gridlines in TOPCon solar cell modules.</p>\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"875-886"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148146962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Defect Passivation via Plasma Modification of Lead Halide Perovskite Thin Films","authors":"Ales Vlk,&nbsp;Robert Hlavac,&nbsp;Lucie Landova,&nbsp;Mykhailo Khytko,&nbsp;Swarnendu Banerjee,&nbsp;Julius Vida,&nbsp;Jiří Fujera,&nbsp;Mostafa Othman,&nbsp;Aïcha Hessler-Wyser,&nbsp;Christophe Ballif,&nbsp;Christian Wolff,&nbsp;Tomas Homola,&nbsp;Martin Ledinsky","doi":"10.1002/pip.70075","DOIUrl":"https://doi.org/10.1002/pip.70075","url":null,"abstract":"<p>The defects located at surface and grain boundaries are generally agreed to be the key factors limiting the power conversion efficiency and operational stability of the halide perovskite solar cells. Therefore, new techniques for surface and grain boundaries passivation are being continuously developed and studied. In this work, we investigate the impact of diffuse coplanar surface barrier discharge (DCSBD) nitrogen plasma treatment on the photoluminescence properties and performance of halide perovskite thin films in solar cells. We show that plasma exposure leads to an increase in photoluminescence, attributed to reduced defect densities, resulting in implied open-circuit voltage improvement of up to 80 mV. Furthermore, solar cells fabricated with plasma-treated layers exhibited open-circuit gains up to 60 mV. These results demonstrate that, with careful optimization, DCSBD nitrogen plasma treatment is an effective method for enhancing the efficiency of perovskite solar cells. Moreover, it is an easily scalable and dry process, two factors that make it an ideal method for industrial applications.</p>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"813-820"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Self-Supervised Machine Learning Approach for the Estimation of Open-Circuit Voltage Degradation in Photovoltaic Systems","authors":"Sandra Riaño,&nbsp;Jose-Domingo Santos,&nbsp;Miguel Esteras,&nbsp;Amaia Abanda,&nbsp;Javier Del Ser","doi":"10.1002/pip.70088","DOIUrl":"https://doi.org/10.1002/pip.70088","url":null,"abstract":"<p>In this work, we present a machine learning (ML) approach that integrates physics-based knowledge with data-driven techniques to estimate the open-circuit voltage (\u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>v</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math>) of photovoltaic (PV) systems. This self-supervised approach allows the detection of anomalies in operating systems, enabling the identification of potential faults and degradation related to \u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>v</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> without requiring labelled data. Deviations in \u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>v</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> values are detected by analysing the measurements recorded in the supervisory control and data acquisition (SCADA) system. This analysis is performed by a combination of clustering and regression algorithms. The proposed approach is validated on three different PV installations, showcasing its ability to detect variations in open-circuit voltage and to predict performance degradation. The proposed method achieves an \u0000<span></span><math>\u0000 <mi>R</mi></math>-squared (r2) value larger than 0.9 when trained on experimental \u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>v</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> data from three distinct PV systems. Moreover, it estimates \u0000<span></span><math>\u0000 <msub>\u0000 <mrow>\u0000 <mi>v</mi>\u0000 </mrow>\u0000 <mrow>\u0000 <mi>o</mi>\u0000 <mi>c</mi>\u0000 </mrow>\u0000 </msub></math> from SCADA data with an average error below 5% compared with \u0000<span></span><math>\u0000 <mi>I</mi></math>–\u0000<span></span><math>\u0000 <mi>V</mi></math> curve measurements. The results of this study demonstrate that physics informed ML techniques can significantly enhance the performance and reliability of PV systems, enabling early fault detection and degradation forecasting.</p>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"920-941"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and Theoretical Study of PV Cooling Using Paraffin PCM and Trisodium-Phosphate (TSP) Solution in Arid Climates","authors":"Abdulrazzaq M. Saleh Aljumaily,&nbsp;Alaa Y. Ali,&nbsp;Mubarak Hamad Oglah","doi":"10.1002/pip.70082","DOIUrl":"https://doi.org/10.1002/pip.70082","url":null,"abstract":"<div>\u0000 \u0000 <p>This study is important because it provides the first experimentally validated assessment of a hybrid photovoltaic cooling system that integrates paraffin phase-change material (PCM) with a circulating trisodium phosphate (TSP) solution under high-irradiance arid conditions. The system couples a rear-mounted paraffin PCM (20 kg) contained in an aluminum channel with a 0.375-M TSP aqueous solution circulating through serpentine copper tubing at a flow rate of 1 L min⁻¹ (1.6667 × 10⁻⁵ m³ s⁻¹). Field experiments were conducted in Sharqat, Tikrit, Iraq, on a 60 × 150 cm PV module under natural solar irradiance. Four configurations were evaluated: (1) uncooled (reference), (2) water cooling only, (3) water + PCM, and (4) TSP + PCM. Electrical and thermal measurements were made, which included PV cell temperatures and coolant in/outlet temperatures. A model of PV–PCM–fluid coupling heat-transfer using MATLAB was successfully established to compare with the data. Such results illustrate that the integration of PCM and TSP reduces the module temperature dramatically while simultaneously improving both electrical power output and conversion efficiency, compared with the other modes. In addition, the hot coolant can be utilized in domestic hot-water service. The SOEC system with the PCM + TSP low-cost hybrid design leads to a noticeable enhancement in electrical efficiency (from 6.65% to 11.44%) and delivers recoverable thermal energy at the same time (absolute increase = 4.79%, relative increment = 72.0%). The corresponding 1-D MATLAB model exhibits a good agreement with the measurements (0.53%–12.1%) and provides meaningful sensitivity-related considerations for PCM mass, coolant concentration, and flow rate. The novelty of the paper is its verification and validation real world for the PCM–TSP hybrid approach, as well as simple and reproducible performance data that are useful to all those scientists who are working into optimal design of PV TTM and electrical power-thermal recovery systems. The suggested system also has environmental and economic benefits because it makes PV last longer, increases energy yield, and lets heat be reused. It can also be easily scaled up for different PV systems using cheap materials.</p>\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"795-812"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient and Durable Semitransparent Perovskite Solar Cells for the Application in 4T Perovskite/c-Si Tandem Devices","authors":"Satish Bykkam,&nbsp;Katarzyna Cudo,&nbsp;Kamil Trocki,&nbsp;Shih-Han Huang,&nbsp;Chia-Feng Li,&nbsp;Łukasz Haryński,&nbsp;Sudip Malick,&nbsp;Beata Bochentyn,&nbsp;Jędrzej Szmytkowski,&nbsp;Stanislaw Czapp,&nbsp;Katarzyna Grochowska,&nbsp;Katarzyna Siuzdak,&nbsp;Damian Glowienka","doi":"10.1002/pip.70077","DOIUrl":"https://doi.org/10.1002/pip.70077","url":null,"abstract":"<p>Semitransparent perovskite solar cells (ST-PSCs) are becoming increasingly important for applications such as tandem photovoltaics and building-integrated photovoltaic technologies. A significant challenge in their fabrication is the damage caused by sputtering during the deposition of transparent conductive oxides (TCOs), which can harm exposed layers and degrade device performance. To tackle this issue, we develop an optimized fabrication strategy that incorporates a tin oxide (SnO₂) buffer layer, effectively protecting the sensitive layer from sputtering-induced damage during the deposition of TCOs, specifically indium in oxide (ITO), which serves as the rear electrode. The resulting ST-PSCs achieved a record power conversion efficiency (PCE) of 21.87%. Additionally, when integrated into a four-terminal (4T) tandem configuration with a commercial crystalline silicon (c-Si) bottom cell, the combined device reaches an over-efficiency of 27.15%. Beyond efficiency, these devices exhibit remarkable operational stability, achieving a T₈₀ of 1600 h during continuous light soaking (ISOS-L-1) and maintaining performance for over 4000 h in outdoor conditions (ISOS-O-3) through an effective encapsulation technique.</p>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"887-905"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148146963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance and Reliability of PV Modules Made With Novel Co-Extruded Encapsulant Containing UV Downshifting Compound","authors":"Maxime Babics,&nbsp;Vincent Barth,&nbsp;Yannick Roujol,&nbsp;Timea Béjat,&nbsp;Marion Sérasset,&nbsp;Amandine Boulanger,&nbsp;Axel Descormes,&nbsp;Jérémie Aime,&nbsp;Damien Boyer,&nbsp;Gabriele Bianca,&nbsp;Sebastiano Caccamo,&nbsp;Marco Leonardi,&nbsp;Francesco Rametta,&nbsp;Antonino Ragonesi,&nbsp;Cosimo Gerardi,&nbsp;Eszter Voroshazi","doi":"10.1002/pip.70086","DOIUrl":"https://doi.org/10.1002/pip.70086","url":null,"abstract":"<div>\u0000 \u0000 <p>Encapsulants are critical in ensuring long photovoltaic (PV) module lifetimes. Recent innovations in encapsulant formulation are modifying the encapsulant landscape with the promises of techno-economic advantages: cell technology-specific materials, the use of multilayer encapsulants, and the use of UV downshifting films (UV-DS). In this work, we present one of the first complete material and module-level performance and reliability testing of one of the latest generations of commercial coextruded EVA/POE/EVA (EPE) encapsulant containing an organic downshifting luminescent chromophore. We demonstrate that the encapsulant maintains excellent optical, mechanical, and adhesion properties at the initial time and after aging. We investigate the diffusion of the additives occurring between the solar cells upon thermal treatment, revealing a potential competition between luminescent and UV-cut additives. Silicon heterojunction (SHJ) mini-modules pass three times the IEC61215–1:2021 damp heat and thermal cycling sequences with minimal performance losses of 1.3% and 2.0%, respectively. Commercial-sized modules fabricated with UV-DS encapsulant show a power gain of 1.75% over the conventional UV-cut-based modules. We demonstrate a high spectrum dependence of these results based on the light source used for the measurement. Finally, outdoor monitoring confirms the energy gain and highlights its dependence on the UV content of the on-site solar spectrum, with a 2.2% energy production gain in the summer that drops to less than 1% in the winter due to lower UVA irradiances.</p>\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 7","pages":"866-874"},"PeriodicalIF":7.6,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148147049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}