Progress in Photovoltaics最新文献

Steady-State Performance Measurements of State-of-the-Art Perovskite Solar Cells 最新钙钛矿太阳能电池的稳态性能测量

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-05 DOI: 10.1002/pip.70044

Yongjie Jiang, Xiting Lang, Luolei Shi, Kaitian Mao, Fengchun Cai, Zhiyuan Cao, Enhao Zhang, Yangyang Gou, Minghui Li, Tengzuo Huang, Zhenhai Yang, Jixian Xu, Jichun Ye, Chuanxiao Xiao

{"title":"Steady-State Performance Measurements of State-of-the-Art Perovskite Solar Cells","authors":"Yongjie Jiang, Xiting Lang, Luolei Shi, Kaitian Mao, Fengchun Cai, Zhiyuan Cao, Enhao Zhang, Yangyang Gou, Minghui Li, Tengzuo Huang, Zhenhai Yang, Jixian Xu, Jichun Ye, Chuanxiao Xiao","doi":"10.1002/pip.70044","DOIUrl":"https://doi.org/10.1002/pip.70044","url":null,"abstract":"<div>\u0000 \u0000 Reliable steady-state testing protocols are crucial for accurately evaluating the performance of perovskite solar cells. In this study, we systematically compare the asymptotic PMAX scan and the maximum power point tracking (MPPT) method to assess their effectiveness in steady-state efficiency measurements. We introduce the current density standard deviation factor as a stability criterion in the asymptotic PMAX scan, and implement a convergence amplitude to regulate the voltage adjustment speed toward the maximum power point. There is a possible tendency that the performance of state-of-the-art perovskite solar cells improved in the asymptotic PMAX scan in low-to-high voltage directions. Numerical device simulations reveal that this improvement is due to a reduction in the trap state density in both the perovskite bulk and at the interfaces. We further compare asymptotic PMAX scans conducted in both low-to-high and high-to-low voltage directions, demonstrating their strong consistency and repeatability on state-of-the-art perovskite solar cells. Our results show that the steady-state PMAX obtained from the asymptotic PMAX scan closely matches, but can be slightly higher than, that from MPPT. This work provides a comprehensive evaluation of steady-state testing methods for perovskite solar cells, offering a foundation for more accurate performance characterization and certification.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1391-1400"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177174","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}

引用次数: 0

Regulation of Vapor-Deposited Perovskite by Rubidium Chloride for Efficient and Stable Inverted Perovskite Solar Cells 氯化铷调控气相沉积钙钛矿制备高效稳定的倒钙钛矿太阳能电池

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-17 DOI: 10.1002/pip.70055

Qiong Xu, Yicheng Qian, Qian Zhao, Zhixin Ren, Jinzhao Li, Yuan Qiu, Shougen Yin, Huanqi Cao

{"title":"Regulation of Vapor-Deposited Perovskite by Rubidium Chloride for Efficient and Stable Inverted Perovskite Solar Cells","authors":"Qiong Xu, Yicheng Qian, Qian Zhao, Zhixin Ren, Jinzhao Li, Yuan Qiu, Shougen Yin, Huanqi Cao","doi":"10.1002/pip.70055","DOIUrl":"https://doi.org/10.1002/pip.70055","url":null,"abstract":"<div>\u0000 \u0000 Vapor-phase deposition techniques widely adopted in the coating and semiconductor industry are facilitating the consolidation and market penetration of perovskite solar cells (PSCs). However, the efficiency of inverted p-i-n PSCs prepared by vapor methods lags far behind that of solution methods. The multidimensional defects at the buried interface of the perovskite layer could be considered the largest obstacle to improving the photovoltaic performance of vapor-processed devices, particularly in devices prepared by vapor-solid-reaction methods. In this study, a two-step thermal evaporation method is adopted to fabricate the perovskite precursor film. An ultrathin layer of RbCl is preburied at the bottom of the precursor film, and then RbCl and PbI2 are co-evaporated. The introduced RbCl achieves a concurrent passivation effect towards multidimensional defects: (1) The predeposited RbCl layer reacts with PbI2, forming an ultrathin dielectric layer of RbPbIxCl3-x, which acts as crystallization nuclei, thereby effectively reducing the void defect density at the buried interface; (2) the RbCl doped in the bulk phase reacts with excess PbI2 to form (PbI2)2RbCl, further improving the structural stability of perovskites. The optimized device exhibited an improved fill factor of up to 82.91% and a power conversion efficiency of 22.28%, making it a leading value among vapor-processed inverted PSCs. Under ambient conditions, the packaged device retained 95% of the initial efficiency after 1200 h of output, proving that the synergistic passivation strategy results in a significant effect on improving device stability.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1416-1425"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177285","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}

引用次数: 0

Advances in Side-Chain Engineering of Triarylamine and Thienyl-Based Hole Transport Materials for Perovskite Solar Cells 钙钛矿太阳能电池中三芳胺和乙烯基空穴传输材料侧链工程研究进展

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-18 DOI: 10.1002/pip.70045

Puteri Intan Zulaikha Syed Mahadzir, M. Mottakin, Yang Li, Suhaila Sepeai, Norasikin Ahmad Ludin, Mohammad Khaja Nazeeruddin, Mohd Sukor Su'ait

{"title":"Advances in Side-Chain Engineering of Triarylamine and Thienyl-Based Hole Transport Materials for Perovskite Solar Cells","authors":"Puteri Intan Zulaikha Syed Mahadzir, M. Mottakin, Yang Li, Suhaila Sepeai, Norasikin Ahmad Ludin, Mohammad Khaja Nazeeruddin, Mohd Sukor Su'ait","doi":"10.1002/pip.70045","DOIUrl":"https://doi.org/10.1002/pip.70045","url":null,"abstract":"<div>\u0000 \u0000 Recent advancements in perovskite solar cells (PSCs) have marked a transformative milestone in photovoltaics, offering innovative and cost-effective solutions for efficient energy generation. However, challenges related to stability have impeded their commercialization. To address these challenges, researchers have focused on approaches like interfacial and structural engineering, particularly in the development of efficient hole transport materials (HTMs). Additionally, side-chain engineering of HTMs plays a key role in improving hole mobility and stability, further boosting the overall performance of PSCs. This review highlights how side-chain engineering in triarylamine-based HTMs and thienyl derivatives enhance π–π stacking, resulting in deeper highest occupied molecular orbital (HOMO) energy levels and improved intermolecular interactions. Triarylamine-based HTMs with electron-donating substituents show improved interfacial interactions with the perovskite (PVK) absorber, passivating defects and reducing recombination losses. Similarly, polymeric thienyl derivatives with optimized supramolecular ordering demonstrate enhanced charge mobility and stability due to rigid polymer stacking. The incorporation of fluorine and sulfur-enriched molecules in the structure broadens light absorption spectra. Moreover, fine-tuning molecular weight and modifying donor–π–acceptor architectures significantly enhance mechanical, electrical, and optical properties. This review provides insights into developing novel HTMs through side-chain engineering to overcome stability issues and accelerate the commercialization of PSCs.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1347-1377"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177626","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}

引用次数: 0

Polarity Engineering to Optimize the Crystallization Process of Tin Halide Perovskites for Photovoltaic Applications 极性工程优化光伏应用卤化锡钙钛矿结晶工艺

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2026-02-22 DOI: 10.1002/pip.70085

Junmin Xia, Annan Zhu, Mengting Chen, Ziyi Wang, Hui Hong, Zhifeng Li, JinYu Wu, Bo Cai, Kun Cao, Nan Zhang, Chao Liang, Shufen Chen

{"title":"Polarity Engineering to Optimize the Crystallization Process of Tin Halide Perovskites for Photovoltaic Applications","authors":"Junmin Xia, Annan Zhu, Mengting Chen, Ziyi Wang, Hui Hong, Zhifeng Li, JinYu Wu, Bo Cai, Kun Cao, Nan Zhang, Chao Liang, Shufen Chen","doi":"10.1002/pip.70085","DOIUrl":"https://doi.org/10.1002/pip.70085","url":null,"abstract":"<div>\u0000 \u0000 Tin-based perovskites usher in a promising avenue for eco-friendly photovoltaics. However, their further development is hindered by the intrinsic issues of easy Sn2+ oxidation and the difficulty in controlling crystallization. In tin-based perovskite solar cells (TPSCs), zwitterionic additives can ameliorate perovskite films through hydrogen bonding and coordination with components of perovskite. Yet, the role of additive dipole moments remains underexplored. Herein, the critical role of zwitterionic additive polarity in modulating the performance of TPSCs is systematically investigated through polarity engineering. Polarities of zwitterionic additives (β-alanine (β-Ala), 2-aminoethylsulfonic acid (ACES), and 2-aminoethylphosphate (2-AEP)) are regulated by introducing distinct acid groups. Among them, β-Ala, with an optimal dipole moment of 5.35 D, forms optimal hydrogen bonds and moderate coordination interaction with Sn2+, resulting in a lower absolute zeta potential of the solution colloid. Attributed to more uniform colloid size and larger colloid particles, the β-Ala-Sn perovskite exhibits faster uniform nucleation and delayed crystallization kinetics. The optimized perovskite film demonstrates excellent crystallinity, prolonged carrier lifetime, and reduced defect density, along with improved energy level matching. Consequently, the optimized device achieves an enhanced power conversion efficiency of 8.75% and maintains 85% of its initial efficiency after 2000 h of storage in a nitrogen environment.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1446-1455"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177627","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}

引用次数: 0

Effective Strategy to Analyze the Performance of Perovskite Solar Modules 钙钛矿太阳能组件性能分析的有效策略

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-12 DOI: 10.1002/pip.70057

Boping Yang

引用次数: 0

Exploring the Impedance Spectroscopy in Hole-Conductor-Free Mesoscopic Perovskite Solar Cells 无孔介观钙钛矿太阳能电池的阻抗谱研究

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-05 DOI: 10.1002/pip.70047

Cheng Qiu, Jiale Liu, Shuai Yang, Deli Yan, Lukas Wagner, Yue Hu

{"title":"Exploring the Impedance Spectroscopy in Hole-Conductor-Free Mesoscopic Perovskite Solar Cells","authors":"Cheng Qiu, Jiale Liu, Shuai Yang, Deli Yan, Lukas Wagner, Yue Hu","doi":"10.1002/pip.70047","DOIUrl":"https://doi.org/10.1002/pip.70047","url":null,"abstract":"This study focuses on the hole-conductor-free printable mesoscopic perovskite solar cells (p-MPSCs), which employ carbon electrodes and mesoporous scaffold structures, offering advantages of low cost and high stability with significant commercial potential. Although progress has been made in structural and performance optimization, the carrier dynamics under operational conditions remain insufficiently understood. In this work, we introduced 5-ammonium valeric acid iodide (5-AVAI) as an additive, significantly enhancing device stability and enabling consistent performance during prolonged impedance spectroscopy (IS) measurements. For the first time, we established a dedicated equivalent circuit model for p-MPSCs. Through thickness-dependent IS analysis, we elucidated the physical significance of each circuit element and its correlation with the functional layer thickness. In addition, the influence of light intensity under working conditions was systematically studied: Within the range of < 800 W/cm2, enhanced light can slow down recombination and charge accumulation, but excessive light intensity (> 800 W/cm2) can lead to a decrease in low-frequency lifetime. Notably, we observed for the first time that carrier extraction and transport time scales remain insensitive to bias voltage variations. These findings provide fundamental insights into the charge extraction and recombination mechanisms in p-MPSCs under operational conditions, offering critical theoretical guidance for their industrial development.","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1491-1502"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pip.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177235","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}

引用次数: 0

CuX-Stabilized NiOx Interface Toward Efficient Flexible Perovskite Solar Cells 面向高效柔性钙钛矿太阳能电池的cux稳定NiOx界面

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2026-01-14 DOI: 10.1002/pip.70070

Xinliang Zhou, Chuanming Tian, Tianhao Wu, Yu Zhao, Bin Li, Xuefei Han, Kerui Li, Chengyi Hou, Yaogang Li, Hongzhi Wang, Qinghong Zhang

{"title":"CuX-Stabilized NiOx Interface Toward Efficient Flexible Perovskite Solar Cells","authors":"Xinliang Zhou, Chuanming Tian, Tianhao Wu, Yu Zhao, Bin Li, Xuefei Han, Kerui Li, Chengyi Hou, Yaogang Li, Hongzhi Wang, Qinghong Zhang","doi":"10.1002/pip.70070","DOIUrl":"https://doi.org/10.1002/pip.70070","url":null,"abstract":"<div>\u0000 \u0000 NiOx has emerged as a commonly used hole transport material in p–i–n perovskite solar cells owing to outstanding p-type characteristics and robust stability. However, the undesired redox reaction at the perovskite/NiOx interface significantly impairs the device performance and stability. Hence, we develop an anion–cation synergetic strategy to inhibit Ni2+ oxidation and optimize the buried interface of perovskites. The cuprous cation (Cu+) from CuX (X = Cl, Br, or I) layer suppressed the undesired Ni2+ oxidation, while halogen ions passivated vacancy defects and modulated crystal growth of perovskites simultaneously, then achieving an excellent interface with quick charge transport and extraction. Furthermore, the beneficial effect of different anions on NiOx and perovskite layers is further quantified and revealed. Consequently, the optimized flexible triple-cation and FAPbI3 composition PSCs yield a power conversion efficiency (PCE) of 21.64% and 22.93%, respectively, along with notably improved device stability, maintaining 85% of the initial efficiency even after 6000 h storage. This work offers a reference approach to enhance the performance and stability of inverted flexible PSCs by an anion–cation synergetic strategy.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1426-1435"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177300","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}

引用次数: 0

Coring Technique Development and Failure Analysis of Perovskite Solar Modules 钙钛矿太阳能组件取芯技术发展及失效分析

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2026-05-19 DOI: 10.1002/pip.70121

Yujian Han, Xiting Lang, Minghui Li, Hao Tian, Hong Lu, Xirui Liu, Xingxing Wang, Lang Wen, Jiang Sheng, Jichun Ye, Chongwen Li, Chuanxiao Xiao

{"title":"Coring Technique Development and Failure Analysis of Perovskite Solar Modules","authors":"Yujian Han, Xiting Lang, Minghui Li, Hao Tian, Hong Lu, Xirui Liu, Xingxing Wang, Lang Wen, Jiang Sheng, Jichun Ye, Chongwen Li, Chuanxiao Xiao","doi":"10.1002/pip.70121","DOIUrl":"https://doi.org/10.1002/pip.70121","url":null,"abstract":"<div>\u0000 \u0000 Understanding degradation in perovskite solar modules (PSMs) is crucial for improving long-term stability, yet accessing internal layers without introducing artifacts remains difficult. We present a controlled coring method tailored for PSMs that enables mechanical extraction of intact device sections while preserving their structural, chemical, and optoelectronic properties. Comprehensive characterizations confirm that the cored devices remain representative of the original module, with no detectable artifacts introduced during extraction. Applying this technique to field-aged modules operated outdoors for 10 months reveals nonuniform photoluminescence, bandgap shifts, Ag oxidation, and the α-to-δ phase transition of formamidinium lead iodide (FAPbI3), which are clear evidence of moisture-driven Ag corrosion and ion migration at the perovskite/Ag interface. This work establishes a reliable approach for accessing encapsulated perovskite modules and provides direct insight into real-world degradation pathways, offering guidance for improving the durability of perovskite photovoltaic technologies.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1456-1465"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177516","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}

引用次数: 0

Mechanochemical P–C Bonding Strategy for Work Function Tuning in Printable Carbon–Based Perovskite Solar Cells 可打印碳基钙钛矿太阳能电池功函数调整的机械化学P-C键合策略

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2026-02-10 DOI: 10.1002/pip.70078

Jie Sheng, Wentao Sun, Zichen Wang, Jiaxin Dong, Wenjun Wu

{"title":"Mechanochemical P–C Bonding Strategy for Work Function Tuning in Printable Carbon–Based Perovskite Solar Cells","authors":"Jie Sheng, Wentao Sun, Zichen Wang, Jiaxin Dong, Wenjun Wu","doi":"10.1002/pip.70078","DOIUrl":"https://doi.org/10.1002/pip.70078","url":null,"abstract":"<div>\u0000 \u0000 In printable mesoscopic perovskite solar cells (p-MPSCs), the carbon electrode work function is a pivotal parameter governing efficient hole extraction; yet, devising environmentally benign approaches for its modulation remains a critical challenge. Herein, we report a mechanochemical strategy to construct robust P–C bonds by high-energy ball milling black phosphorus (BP) with graphite, enabling homogeneous P distribution without compromising the intrinsic graphitization degree of carbon. The tailored electronic structure leads to an optimized work function, reduced defect-state density, and improved perovskite infiltration, thereby enhancing the open-circuit voltage (VOC) and fill factor (FF). At an optimal BP loading (3 wt%), the carbon electrode delivers a power conversion efficiency (PCE) of 17.45%, representing a 15.8% improvement over the undoped control. This work pioneers P–C bond engineering through mechanochemistry as a highly effective and scalable strategy, marking a significant advancement in the development of high-performance carbon-based perovskite solar cells.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1503-1512"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177014","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}

引用次数: 0

Progress and Challenges for Flexible Perovskite Solar Cell Stability 柔性钙钛矿太阳能电池稳定性研究进展与挑战

IF 10.2 2区材料科学

Progress in Photovoltaics Pub Date : 2026-10-13 Epub Date: 2025-12-26 DOI: 10.1002/pip.70058

Dingwei Wang, Weidan Gu, Ning Su, Fei Liu, Qingshan Li, Bin Du

{"title":"Progress and Challenges for Flexible Perovskite Solar Cell Stability","authors":"Dingwei Wang, Weidan Gu, Ning Su, Fei Liu, Qingshan Li, Bin Du","doi":"10.1002/pip.70058","DOIUrl":"https://doi.org/10.1002/pip.70058","url":null,"abstract":"<div>\u0000 \u0000 Perovskite solar cells (PSCs) have become a research hotspot in the photovoltaic field due to their excellent photoelectric conversion efficiency (PCE), simple preparation process, and low-cost characteristics. Among them, flexible perovskite solar cells (FPSCs) possess unique advantages such as lightweight and wearability. Compared with rigid devices (RPSCs), the efficiency improvement of FPSCs faces multiple challenges: the limitations of the light transmittance of flexible substrates, insufficient temperature and weather resistance, as well as interface defects and mechanical stress damage caused by low-temperature preparation processes, which severely restrict the device performance and stability. This paper systematically reviews the latest research progress in interface engineering and defect passivation strategies for PEN/ITO flexible substrates and n-i-p device structures. It focuses on key technical routes such as surface reconstruction of functional layers, chemical regulation of grain boundaries, and modification of heterojunction interfaces. Through strategies such as the introduction of novel passivation molecules, self-assembled monolayers, and gradient energy level design, the charge transport and recombination characteristics have been effectively improved. In addition, regarding the large-scale preparation technology of flexible perovskite modules, the optimization schemes for large-area film formation processes are summarized, and the transition from small-scale devices to large-area photovoltaic modules for various applications is discussed. The methods for stress control and defect suppression during the R2R manufacturing process are analyzed. This study has important reference value for promoting the industrial application of flexible perovskite photovoltaic technology.\u0000 </div>","PeriodicalId":223,"journal":{"name":"Progress in Photovoltaics","volume":"34 11","pages":"1466-1490"},"PeriodicalIF":10.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149177700","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}

引用次数: 0