Dual Optimization of Bulk and Interface via the Synergistic Effect of Ligand Anchoring and Hole Transport Dopant Enables 23.28% Efficiency Inverted Perovskite Solar Cells

Zhou, Xianyong; Luan, Xiangfeng2; Zhang, Luozheng1; Hu, Hang1; Jiang, Zhengyan1; Li, Yaru1; Wu, Jiawen1; Liu, Yanliang1; Chen, Jiabang1; Wang, Deng1; Liu, Chang1; Chen, Shi1; Zhang, Yong1; Zhang, Meiqing; Peng, Yuanjun1,4; Troshin, Pavel A.3,5,6; Wang, Xingzhu1; Mai, Yiyong2; Xu, Baomin1

2023-02-01

10.1021/acsnano.2c11615

ACS Nano   Impact Factor & Quartile

1936-0851

1936-086X

The crystalline morphology of perovskite film plays a key role in determining the stability and performance of perovskite solar cells (PSCs). In addition, the work function and conductivity of hole transport layer (HTL) have a great influence on the effciency of PSCs. Here, we develop a synergistic doping strategy to fabricate high-performance inverted PSCs, doping a functional nanographene (C78-AHM) into the poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine (PTAA) HTL, thus forming an HTL with higher conductivity, lower roughness, and frontier energy levels matching the perovskite absorber work function. On this basis, thiosemicarbazide (TSC) was doped into the precursor solution of perovskite as the grain and interface modifier to further improve the crystalline morphology of perovskite film. Compared with the current single passivation method, this codoping strategy can simultaneously reduce the surface and bulk defects of perovskite film and reduce the interface energy barrier. Eventually, high-quality TSC-doped perovskite films based on C78-AHM-doped PTAA HTL are obtained with over 2 mu m sized grains, pinhole-free, and improved crystallinity. As a result, this synergistic doping strategy increases the efficiency of the device from 20.27% to 23.28%. Furthermore, the environmental and thermal stabilities of the devices are significantly improved. Therefore, this work provides a simple way for the preparation of other efficient optoelectronic devices.

perovskite solar cells regulating grains and interfaces ligand anchoring hole transport dopant synergistic effect

SCI

English

NI Journal Papers

Corresponding

Ministry of Science and Technology of China[2021YFE0191500] ; National Natural Science Foundation of China["52073173","U19A2089","61904076","22225501"] ; Program of Shanghai Academic Research Leader[19XD1421700] ; Shenzhen Science and Technology Innovation Committee[JCYJ20190809150213448] ; Natural Science Foundation of Guangdong Province[075-15-2022-1216] ; Russian Ministry of Science and Higher Education[JCYJ20200109141014474] ; null[2020A1515010980]

Chemistry ; Science & Technology - Other Topics ; Materials Science

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

WOS:000940436100001

AMER CHEMICAL SOC

Web of Science

1.Key Univ Lab Highly Efficient Utilizat Solar Energ, Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Shenzhen Engn Res & Dev Ctr Flexible Solar Cells, Hong Kong 518055, Guangdong, Peoples R China
2.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai Key Lab Elect Insulat & Thermal Ageing, Shanghai, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
4.Shenzhen Putai Technol Co Ltd, Shenzhen 518000, Peoples R China
5.Russian Acad Sci, Fed Res Ctr Problems Chem Phys & Med Chem, Chernogolovka 142432, Moscow, Russia
6.Russian Acad Sci FRC PCP MC RAS, Fed Res Ctr Problems Chem Phys & Med Chem, Chernogolovka 142432, Moscow, Russia

Zhou, Xianyong,Luan, Xiangfeng,Zhang, Luozheng,et al. Dual Optimization of Bulk and Interface via the Synergistic Effect of Ligand Anchoring and Hole Transport Dopant Enables 23.28% Efficiency Inverted Perovskite Solar Cells[J]. ACS Nano,2023.

Zhou, Xianyong.,Luan, Xiangfeng.,Zhang, Luozheng.,Hu, Hang.,Jiang, Zhengyan.,...&Xu, Baomin.(2023).Dual Optimization of Bulk and Interface via the Synergistic Effect of Ligand Anchoring and Hole Transport Dopant Enables 23.28% Efficiency Inverted Perovskite Solar Cells.ACS Nano.

Zhou, Xianyong,et al."Dual Optimization of Bulk and Interface via the Synergistic Effect of Ligand Anchoring and Hole Transport Dopant Enables 23.28% Efficiency Inverted Perovskite Solar Cells".ACS Nano (2023).