Статья

Conformal quantum dot–SnO <sub>2</sub> layers as electron transporters for efficient perovskite solar cells

Minjin KimUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of KoreaJaeki JeongLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandHaizhou LuLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandTae Kyung LeePhotovoltaics Research Department, Korea Institute of Energy Research (KIER), Daejeon 34129, Republic of KoreaFelix T. EickemeyerLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandYuhang LiuLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandIn Woo ChoiUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of KoreaSeung Ju ChoiAdvanced Energy (United States)Yimhyun JoUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of KoreaHak-Beom KimUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of KoreaSung-In MoUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of KoreaYoung-Ki KimCentral Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of KoreaHeunjeong LeeDepartment of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, Republic of KoreaNa Gyeong AnDepartment of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of KoreaShinuk ChoDepartment of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan 44610, Republic of KoreaWolfgang TressNovel Semiconductor Devices Group, Institute of Computational Physics, Zurich University of Applied Sciences, 8401 Winterthur, SwitzerlandShaik M. ZakeeruddinLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandAnders HagfeldtDepartment of Chemistry, Ångström Laboratory, Uppsala University, 751 20 Uppsala, SwedenJin Young KimDepartment of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of KoreaMichaël GrätzelLaboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, SwitzerlandDong Suk KimUlsan Advanced Energy Technology R&D Center, Korea Institute of Energy Research, Ulsan 44776, Republic of Korea

2022en

ABI

Аннотация

Improvements to perovskite solar cells (PSCs) have focused on increasing their power conversion efficiency (PCE) and operational stability and maintaining high performance upon scale-up to module sizes. We report that replacing the commonly used mesoporous–titanium dioxide electron transport layer (ETL) with a thin layer of polyacrylic acid–stabilized tin(IV) oxide quantum dots (paa-QD-SnO 2 ) on the compact–titanium dioxide enhanced light capture and largely suppressed nonradiative recombination at the ETL–perovskite interface. The use of paa-QD-SnO 2 as electron-selective contact enabled PSCs (0.08 square centimeters) with a PCE of 25.7% (certified 25.4%) and high operational stability and facilitated the scale-up of the PSCs to larger areas. PCEs of 23.3, 21.7, and 20.6% were achieved for PSCs with active areas of 1, 20, and 64 square centimeters, respectively.

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Идентификаторы

DOI: 10.1126/science.abh1885

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar