An Improbable Amino-Functionalized Fullerene Spacer Enables 2D/3D Hybrid Perovskite with Enhanced Electron Transport in Solar Cells

doi:10.1002/adfm.202201374

	An Improbable Amino-Functionalized Fullerene Spacer Enables 2D/3D Hybrid Perovskite with Enhanced Electron Transport in Solar Cells
	Zhou, Weiran 1; Jia, Lingbo 1; Chen, Muqing 1,3; Li, Xingcheng 1; Su, Zhenhuang 5; Shang, Yanbo 1; Jiang, Xiaofen 1; Gao, Xingyu 5; Chen, Tao 1; Wang, Mingtai 4
刊名	ADVANCED FUNCTIONAL MATERIALS
	2022-06-11
关键词	2D 3D hybrid perovskites electron transport fullerenes perovskite solar cells trap passivation
ISSN号	1616-301X
DOI	10.1002/adfm.202201374
通讯作者	Yang, Shangfeng(sfyang@ustc.edu.cn)
英文摘要	2D perovskites possess superior humidity stability but inferior power conversion efficiency (PCE) compared with 3D perovskites due to their typically insulating spacers. Size of the spacer cation is determinative for the formation of 2D perovskite, and fullerene is believed not to be capable of templating 2D perovskite structure because of its larger size than the width of the lead-halide octahedron despite its well-known strong electron-accepting ability. Herein, a novel amino-functionalized fullerene derivative (abbreviated as C-60-BPAM) is developed and an 'improbable' spacer for 2D/3D hybrid perovskite solar cells (PSCs), achieving enhanced electron transport is applied. Unlike most of the reported alkylammonium spacers that are based on insulating organic tails, the incorporation of a highly conductive fullerene tail within C-60-BPAM(2+) leads to increased electron density in 2D/3D perovskite and induces an additional built-in electric field, facilitating electron transport in PSCs. Besides, the 2D/3D hybrid structure helps to passivate both of the shallow- and deep-level defects within perovskite. As a result, the PCE of 2D/3D PSCs improves from 19.36% (3D MAPbI(3) PSCs) to 20.21%. Moreover, the 2D/3D PSCs show significant improvement in the humidity stability compared to the 3D counterparts.
资助项目	National Key Research and Development Program of China[2017YFA0402800] ; National Natural Science Foundation of China[51925206] ; National Natural Science Foundation of China[U1932214]
WOS关键词	CH3NH3PBI3 PEROVSKITE ; EFFICIENT
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000809380200001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131253]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Shangfeng
作者单位	1.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale,CAS Key Lab Ma, Hefei 230026, Peoples R China 2.City Univ Hong Kong, Dept Chem, Kowloon, Hong Kong 999077, Peoples R China 3.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Guangdong, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Hefei 230031, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil SSRF, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Weiran,Jia, Lingbo,Chen, Muqing,et al. An Improbable Amino-Functionalized Fullerene Spacer Enables 2D/3D Hybrid Perovskite with Enhanced Electron Transport in Solar Cells[J]. ADVANCED FUNCTIONAL MATERIALS,2022.
APA	Zhou, Weiran.,Jia, Lingbo.,Chen, Muqing.,Li, Xingcheng.,Su, Zhenhuang.,...&Yang, Shangfeng.(2022).An Improbable Amino-Functionalized Fullerene Spacer Enables 2D/3D Hybrid Perovskite with Enhanced Electron Transport in Solar Cells.ADVANCED FUNCTIONAL MATERIALS.
MLA	Zhou, Weiran,et al."An Improbable Amino-Functionalized Fullerene Spacer Enables 2D/3D Hybrid Perovskite with Enhanced Electron Transport in Solar Cells".ADVANCED FUNCTIONAL MATERIALS (2022).