{"title":"Challenges and Optimization Strategies for High-Performance Wide-Bandgap Perovskite Solar Cells","authors":"Minhang Liu, Xingzhu Wang, Weichuan Zhang","doi":"10.1002/aenm.202504777","DOIUrl":null,"url":null,"abstract":"Tandem solar cells (TSCs) employing wide-bandgap (WBG) perovskite solar cells (PSCs) as the bottom sub-cell represent a leading research direction in photovoltaics. However, the presence of phase segregation, interfacial losses, and crystallization quality within WBG perovskite films can drive complex compositional evolution and non-radiative recombination, leading to photovoltage deficits, fill factor (<i>FF</i>) degradation, and impaired charge transport characteristics, which fundamentally limit the attainable high power conversion efficiency. From this perspective, this review presents a systematic optimization framework for high-performance mixed-halide WBG perovskite photovoltaics, addressing critical challenges in mixed-halide WBG PSCs through interfacial, solvent, additive, and composition engineering, along with advanced fabrication techniques. Finally, a comprehensive summary and prospective analysis of future research directions for high-performance mixed-halide WBG perovskite photovoltaics is presented.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"34 1","pages":""},"PeriodicalIF":26.0000,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/aenm.202504777","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Tandem solar cells (TSCs) employing wide-bandgap (WBG) perovskite solar cells (PSCs) as the bottom sub-cell represent a leading research direction in photovoltaics. However, the presence of phase segregation, interfacial losses, and crystallization quality within WBG perovskite films can drive complex compositional evolution and non-radiative recombination, leading to photovoltage deficits, fill factor (FF) degradation, and impaired charge transport characteristics, which fundamentally limit the attainable high power conversion efficiency. From this perspective, this review presents a systematic optimization framework for high-performance mixed-halide WBG perovskite photovoltaics, addressing critical challenges in mixed-halide WBG PSCs through interfacial, solvent, additive, and composition engineering, along with advanced fabrication techniques. Finally, a comprehensive summary and prospective analysis of future research directions for high-performance mixed-halide WBG perovskite photovoltaics is presented.
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.