Deciphering the Morphology Change and Performance Enhancement for Perovskite Solar Cells Induced by Surface Modification

Guan，Nianci1; Zhang，Yuezhou1; Chen，Wei2; Jiang，Zhengyan3; Gu，Lei1; Zhu，Ruixue1; Yadav，Deependra1,4; Li，Deli5; Xu，Baomin3; Cao，Leifeng2; Gao，Xingyu6; Chen，Yonghua7; Song，Lin1

2022

10.1002/advs.202205342

Advanced Science   影响因子和分区

2198-3844

Organic–inorganic perovskite solar cells (PSCs) have achieved great attention due to their expressive power conversion efficiency (PCE) up to 25.7%. To improve the photovoltaic performance of PSCs, interface engineering between the perovskite and hole transport layer (HTL) is a widely used strategy. Following this concept, benzyl trimethyl ammonium chlorides (BTACls) are used to modify the wet chemical processed perovskite film in this work. The BTACl-induced low dimensional perovskite is found to have a bilayer structure, which efficiently decreases the trap density and improves the energy level alignment at the perovskite/HTL interface. As a result, the BTACl-modified PSCs show an improved PCE compared to the control devices. From device modeling, the reduced charge carrier recombination and promoted charge carrier transfer at the perovskite/HTL interface are the cause of the open-circuit (V) and fill factor (FF) improvement, respectively. This study gives a deep understanding for surface modification of perovskite films from a perspective of the morphology and the function of enhancing photovoltaic performance.

BTACl modification device physics low dimensional perovskites morphology perovskite solar cells

SCI ; EI

英语

其他

Natural Science Foundation of China["62004167","61705102","91833304"] ; Northwestern Polytechnical University["2020GXLH-Z-018","2020GXLH-Z-007","2020GXLH-Z-017"] ; Natural Science Basic Research Plan in Shaanxi Province of China[2021JLM-43] ; Natural Science Foundation of Jiangsu Province for Distinguished Young Scholars, China[BK20200034]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000892767900001

WILEY

20225013223025

Charge carriers ; Chlorine compounds ; Morphology ; Perovskite solar cells

Minerals:482.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Solar Cells:702.3 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

2-s2.0-85143382720

Scopus

1.Frontiers Science Center for Flexible Electronics,Institute of Flexible Electronics (IFE),Northwestern Polytechnical University (NPU),Xi'an,710072,China
2.Shenzhen Key Laboratory of  Ultraintense Laser and Advanced Material Technology,Center for Advanced Material Diagnostic Technology,and College of EngineeringPhysics,Shenzhen Technology University (SZTU),Shenzhen,Lantian Road 3002,518118,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Pharmaceutical Sciences Laboratory,Faculty of Science and Engineering,Åbo Akademi University,Turku,FI-00520,Finland
5.Fujian Cross Strait Institute of Flexible Electronics (Future Technologies),Fujian Normal University,Fuzhou,350117,China
6.Country Shanghai Synchrotron Radiation Facility (SSRF),Zhangjiang Lab,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,201204,China
7.Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM),Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM),Nanjing Tech University (NanjingTech),Nanjing,30 South Puzhu Road, Jiangsu,211816,China

Guan，Nianci,Zhang，Yuezhou,Chen，Wei,et al. Deciphering the Morphology Change and Performance Enhancement for Perovskite Solar Cells Induced by Surface Modification[J]. Advanced Science,2022,10(3).

Guan，Nianci.,Zhang，Yuezhou.,Chen，Wei.,Jiang，Zhengyan.,Gu，Lei.,...&Song，Lin.(2022).Deciphering the Morphology Change and Performance Enhancement for Perovskite Solar Cells Induced by Surface Modification.Advanced Science,10(3).

Guan，Nianci,et al."Deciphering the Morphology Change and Performance Enhancement for Perovskite Solar Cells Induced by Surface Modification".Advanced Science 10.3(2022).