Improving the operational stability of perovskite solar cells with cesium-doped graphene oxide interlayer  

作　　者：Masaud Almalki Katerina Anagnostou Konstantinos Rogdakis Felix T.Eickemeyer Mostafa Othman Minas M.Stylianakis Dimitris Tsikritzis Anwar Q.Alanazi Nikolaos Tzoganakis Lukas Pfeifer Rita Therisod Xiaoliang Mo Christian M.Wolff Aïcha Hessler-Wyser Shaik M.Zakeeruddin Hong Zhang Emmanuel Kymakis Michael Grätzel 

机构地区：[1]Laboratory of Photonics and Interfaces,École Polytechnique Fédérale de Lausanne(EPFL),Lausanne 1015,Switzerland [2]Department of Electrical and Computer Engineering,Hellenic Mediterranean University,Heraklion,Crete 71410,Greece [3]Institute of Electrical and Microengineering(IEM)Photovoltaics and Thin-Film Electronics Laboratory(PV-Lab),École Polytechnique Fédérale de Lausanne(EPFL),Neuchâtel 2000,Switzerland [4]Department of Nursing,Faculty of Health Sciences,Hellenic Mediterranean University,Crete 71410,Greece [5]Centre Interdisciplinaire de Microscopie Electronique,École Polytechnique Fédérale de Lausanne(EPFL),Lausanne 1015,Switzerland [6]Future Energy Technology Institute,King Abdulaziz City for Science and Technology(KACST),P.O.Box 6086,Riyadh 11442,Saudi Arabia [7]State Key Laboratory of Photovoltaic Science and Technology,Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception,Institute of Optoelectronics,Department of Materials Science,Fudan University,Shanghai 200433,China

出　　处：《Journal of Energy Chemistry》2024年第9期483-490,共8页能源化学（英文版）

基　　金：King Abdulaziz City for Science and Technology (KACST) for the fellowship;funding from the European Union’s Horizon 2020 research and innovation program GRAPHENE Flagship Core 3 under agreement No.: 881603;funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sk?odowska-Curie grant agreement No. 945363;funding from the Shanghai Pujiang Program (22PJ1401200);the National Natural Science Foundation of China (No. 52302229)

摘　　要：Perovskite solar cells(PSCs)have made great advances in terms of power conversion efficiency(PCE),yet their subpar stability continues to hinder their commercialization.The interface between the perovskite layer and the charge-carrier transporting layers plays a crucial role in undermining the stability of PSCs.In this work,we propose a strategy to stabilize high-performance PSCs with PCE over 23%by introducing a cesium-doped graphene oxide(GO-Cs)as an interlayer between the perovskite and hole-transporting material.The GO-Cs treated PSCs exhibit excellent operational stability with a projected T80(the time where the device PCE reduces to 80%of its initial value)of 2143 h of operation at the maximum powering point under one sun illumination.

关 键 词：Perovskite solar cells Doped graphene oxide Graphene related material Long-term operational stability 

分 类 号：TM914.4[电气工程—电力电子与电力传动]