Antisolvent Engineering to Optimize Grain Crystallinity and Hole-Blocking Capability of Perovskite Films for High-Performance Photovoltaics

Huang, Yulan1,2; Liu, Tanghao1; Wang, Bingzhe1; Li, Jielei1; Li, Dongyang2; Wang, Guoliang2; Lian, Qing2; Amini, Abbas3; Chen, Shi1; Cheng, Chun2,4,5; Xing, Guichuan1

2021-08-01

10.1002/adma.202102816

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

With potential commercial applications, inverted perovskite solar cells (PSCs) have received wide-spread attentions as they are compatible with tandem devices and processed at low-temperature. Nevertheless, their efficiencies remain unsatisfactory due to insufficient film quality on hydrophobic hole transport layer and limited hole-blocking capability of the electron transport layer. Herein, 1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi), an n-type semiconductor, is incorporated into the antisolvent to simultaneously regulate the grain growth and charge transport of perovskite films. TPBi facilitates the crystallization of perovskites along (100) orientation. Besides, TPBi is mainly distributed near the top surface of perovskite film and enhances the hole-blocking capability of the area adjacent to the surface. The superior properties of this film lead to a remarkable improvement in the open-circuit voltage of inverted PSCs. The champion device achieves a high power conversion efficiency of 21.79% while keeping approximate to 92% of its initial value after 1000 h storage in the ambient atmosphere. This work provides an effective way to evidently promote the performance of inverted PSCs and illustrates its underlaying mechanism.

antisolvent engineering enhanced hole-blocking capability improved crystallinity inverted perovskite solar cells TPBi

SCI ; EI

英语

NI论文

通讯

Macau Science and Technology Development Fund, Macau SAR["FDCT-0044/2020/A1","FDCT-091/2017/A2","FDCT-0096/2020/A2","FDCT-014/2017/AMJ"] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Shenzhen Engineering R&D Center for Flexible Solar Cells project from Shenzhen Development and Reform Committee[2019-126] ; UM's research fund from the University of Macau["MYRG2018-00148-IAPME","SRG2018-00140-IAPME"] ; Natural Science Foundation of China[91963129,91733302,61935017,51776094] ; Natural Science Foundation of Guangdong Province, China[2019A1515012186] ; Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials[2019B121205002] ; Basic Research Project of Science and Technology Plan of Shenzhen[JCYJ20180504165655180] ; Foundation of Shenzhen Science and Technology Innovation Committee[JCYJ20180302174021198]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000680013700001

WILEY-V C H VERLAG GMBH

20213110721516

Conversion efficiency ; Crystallinity ; Efficiency ; Electron transport properties ; Grain growth ; Open circuit voltage ; Perovskite ; Temperature

Minerals:482.2 ; Energy Conversion Issues:525.5 ; Thermodynamics:641.1 ; Production Engineering:913.1 ; Crystal Growth:933.1.2

MATERIALS SCIENCE

Web of Science

1.Univ Macau, Inst Appl Phys & Mat Engn, Minist Educ, Joint Key Lab, Ave Univ, Taipa 999078, Macau, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
3.Western Sydney Univ, Ctr Infrastruct Engn, Kingswood, NSW 2751, Australia
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Guangdong, Peoples R China
5.Southern Univ Sci & Technol, Shenzhen Engn Res & Dev Ctr Flexible Solar Cells, Shenzhen 518055, Guangdong, Peoples R China

Huang, Yulan,Liu, Tanghao,Wang, Bingzhe,et al. Antisolvent Engineering to Optimize Grain Crystallinity and Hole-Blocking Capability of Perovskite Films for High-Performance Photovoltaics[J]. ADVANCED MATERIALS,2021,33.

Huang, Yulan.,Liu, Tanghao.,Wang, Bingzhe.,Li, Jielei.,Li, Dongyang.,...&Xing, Guichuan.(2021).Antisolvent Engineering to Optimize Grain Crystallinity and Hole-Blocking Capability of Perovskite Films for High-Performance Photovoltaics.ADVANCED MATERIALS,33.

Huang, Yulan,et al."Antisolvent Engineering to Optimize Grain Crystallinity and Hole-Blocking Capability of Perovskite Films for High-Performance Photovoltaics".ADVANCED MATERIALS 33(2021).