Anchoring Vertical Dipole to Enable Efficient Charge Extraction for High-Performance Perovskite Solar Cells

Liu, Heng1,2; Lu, Zhengyu3,4; Zhang, Weihai2; Wang, Jiantao2; Lu, Zhengli5; Dai, Quan3,4; Qi, Xingnan2; Shi, Yueqing6; Hua, Yuhui3,4; Chen, Rui6; Shi, Tingting5; Xia, Haiping3,4; Wang, Hsing-Lin2,7

2022-09-01

10.1002/advs.202203640

ADVANCED SCIENCE   影响因子和分区

2198-3844

Perovskite solar cells (PSCs) via two-step sequential method have received great attention in recent years due to their high reproducibility and low processing costs. However, the relatively high trap-state density and poor charge carrier extraction efficiency pose challenges. Herein, highly efficient and stable PSCs via a two-step sequential method are fabricated using organic-inorganic (OI) complexes as multifunctional interlayers. In addition to reduce the under-coordinated Pb2+ ions related trap states by forming interactions with the functional groups, the complexes interlayer tends to form dipole moment which can enhance the built-in electric field, thus facilitating charge carrier extraction. Consequently, with rational molecular design, the resulting devices with a vertical dipole moment that parallels with the built-in electric field yield a champion efficiency of 23.55% with negligible hysteresis. More importantly, the hydrophobicity of the (OI) complexes contributes to an excellent ambient stability of the resulting device with 91% of initial efficiency maintained after 3000 h storage.

built-in electric field dipole moment organic-inorganic (OI) complexes perovskite solar cells two-step sequential method

SCI ; EI

英语

通讯

Natural Science Foundation of China["21931002","92156021","22101123"] ; National Key Research and Development Program of China[2018YFB0704100] ; Shenzhen Science and Technology Innovation Committee[JCYJ20200109140812302] ; Leading talents of Guangdong province program[2016LJ06N507] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002]

Chemistry ; Science & Technology - Other Topics ; Materials Science

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

WOS:000849508100001

WILEY

20223712715658

Charge carriers ; Coordination reactions ; Dipole moment ; Efficiency ; Electric fields ; Extraction ; Lead compounds ; Perovskite solar cells

Minerals:482.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Solar Cells:702.3 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Production Engineering:913.1

Web of Science

1.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Guangdong, Peoples R China
4.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
5.Jinan Univ, Guangdong Prov Engn Technol Res Ctr Vacuum Coatin, Dept Phys, Guangzhou 510632, Guangdong, Peoples R China
6.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China
7.Southern Univ Sci & Technol, Key Univ Lab Highly Efficient Utilizat Solar Ener, Shenzhen 518055, Guangdong, Peoples R China

Liu, Heng,Lu, Zhengyu,Zhang, Weihai,et al. Anchoring Vertical Dipole to Enable Efficient Charge Extraction for High-Performance Perovskite Solar Cells[J]. ADVANCED SCIENCE,2022.

Liu, Heng.,Lu, Zhengyu.,Zhang, Weihai.,Wang, Jiantao.,Lu, Zhengli.,...&Wang, Hsing-Lin.(2022).Anchoring Vertical Dipole to Enable Efficient Charge Extraction for High-Performance Perovskite Solar Cells.ADVANCED SCIENCE.

Liu, Heng,et al."Anchoring Vertical Dipole to Enable Efficient Charge Extraction for High-Performance Perovskite Solar Cells".ADVANCED SCIENCE (2022).