Ji Won Song, Yun Seop Shin, Minjin Kim, Jaehwi Lee, Dongmin Lee, Jongdeuk Seo, YeonJeong Lee, Woosuk Lee, Hak-Beom Kim, Sung-In Mo, Jeong-Ho An, Ji-Eun Hong, Jin Young Kim, Il Jeon, Yimhyun Jo, Dong Suk Kim
{"title":"Post-Treated Polycrystalline SnO2 in Perovskite Solar Cells for High Efficiency and Quasi-Steady-State-IV Stability","authors":"Ji Won Song, Yun Seop Shin, Minjin Kim, Jaehwi Lee, Dongmin Lee, Jongdeuk Seo, YeonJeong Lee, Woosuk Lee, Hak-Beom Kim, Sung-In Mo, Jeong-Ho An, Ji-Eun Hong, Jin Young Kim, Il Jeon, Yimhyun Jo, Dong Suk Kim","doi":"10.1002/aenm.202401753","DOIUrl":null,"url":null,"abstract":"The prominent chemical bath deposition (CBD) method leverages tin dioxide (SnO<sub>2</sub>) as an electron transport layer (ETL) in perovskite solar cells (PSCs), achieving exceptional efficiency. The deposition of SnO<sub>2</sub>, however, can lead to the formation of oxygen vacancies and surface defects, which subsequently contribute to performance challenges such as hysteresis and instability under light-soaking conditions. To alleviate these issues, it is crucial to address heterointerface defects and ensure the uniform coverage of SnO<sub>2</sub> on fluorine-doped tin oxide substrates. Herein, the efficacy of tin(IV) chloride (SnCl<sub>4</sub>) post-treatment in enhancing the properties of the SnO<sub>2</sub>-ETL and the performances of PSCs are presented. The treatment with SnCl<sub>4</sub> not only removes undesired agglomerated SnO<sub>2</sub> nanoparticles from the surface of CBD SnO<sub>2</sub> but also improves its crystallinity through a recrystallization process. This leads to an optimized interface between the SnO<sub>2</sub>-ETL and perovskite, effectively minimizing defects while promoting efficient electron transport. The resultant PSCs demonstrate improved performance, achieving an efficiency of 25.56% (certified with 24.92%), while retaining 95.84% of the initial PCE under ambient storage conditions. Additionally, PSCs treated with SnCl<sub>4</sub> endure prolonged light-soaking tests, particularly when subjected to quasi-steady-state-IV measurements. This highlights the potential of SnCl<sub>4</sub> treatment as a promising strategy for advancing PSC technology.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":null,"pages":null},"PeriodicalIF":24.4000,"publicationDate":"2024-07-03","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.202401753","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
The prominent chemical bath deposition (CBD) method leverages tin dioxide (SnO2) as an electron transport layer (ETL) in perovskite solar cells (PSCs), achieving exceptional efficiency. The deposition of SnO2, however, can lead to the formation of oxygen vacancies and surface defects, which subsequently contribute to performance challenges such as hysteresis and instability under light-soaking conditions. To alleviate these issues, it is crucial to address heterointerface defects and ensure the uniform coverage of SnO2 on fluorine-doped tin oxide substrates. Herein, the efficacy of tin(IV) chloride (SnCl4) post-treatment in enhancing the properties of the SnO2-ETL and the performances of PSCs are presented. The treatment with SnCl4 not only removes undesired agglomerated SnO2 nanoparticles from the surface of CBD SnO2 but also improves its crystallinity through a recrystallization process. This leads to an optimized interface between the SnO2-ETL and perovskite, effectively minimizing defects while promoting efficient electron transport. The resultant PSCs demonstrate improved performance, achieving an efficiency of 25.56% (certified with 24.92%), while retaining 95.84% of the initial PCE under ambient storage conditions. Additionally, PSCs treated with SnCl4 endure prolonged light-soaking tests, particularly when subjected to quasi-steady-state-IV measurements. This highlights the potential of SnCl4 treatment as a promising strategy for advancing PSC technology.
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.