A highly efficient interface hole transporting tunnel by a bipyridine semiconductor for perovskite solar cells

doi:10.1039/d2tc03649e

	A highly efficient interface hole transporting tunnel by a bipyridine semiconductor for perovskite solar cells
	Zhang, Jinxue 1,2; Kong, Fantai 1; Peng, Yaole 1,2; Zhao, Chundie 1,2; Chen, Shuanghong 1; Gradari, Rahim 3; Liu, Wenjun 1
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2022-12-08
卷号	10
ISSN号	2050-7526
DOI	10.1039/d2tc03649e
通讯作者	Kong, Fantai(kongfantai@163.com)
英文摘要	Herein, we present a D-A-D type organic semiconductor with a bipyridine core for constructing an efficient tunnel between perovskite and a hole transporting layer to obtain high-performance PSCs. This molecule could facilitate the band bending of perovskite to construct energy level alignment. Moreover, its bipyridine core also passivates the uncoordinated Pb2+ defects of perovskite films. Hence, the hole mobility of the hole transporting layer is increased by 7 times, from 1.05 x 10(-4) to 8.36 x 10(-4) cm(2) V-1 s(-1) and the hole defect density is decreased by 41%, from 4.42 x 10(15) to 2.63 x 10(15) cm(-3) after introducing this hole transporting tunnel. As a result, the power conversion efficiency (PCE) of n-i-p structured PSCs increases from 20.2% to 22.4% with improved stability.
资助项目	CAS-Iranian Vice Presidency for Science and Technology Joint Research Project ; [116134KYSB20160130]
WOS关键词	PASSIVATION ; PERFORMANCE ; ADDITIVES ; LAYERS ; LEAD
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000891507000001
资助机构	CAS-Iranian Vice Presidency for Science and Technology Joint Research Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131627]
专题	中国科学院合肥物质科学研究院
通讯作者	Kong, Fantai
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci HFIPS, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Univ Tabriz, Fac Chem, Dept Organ & Biochem, Computat Chem Lab, 5166616471, Tabriz, Iran
推荐引用方式 GB/T 7714	Zhang, Jinxue,Kong, Fantai,Peng, Yaole,et al. A highly efficient interface hole transporting tunnel by a bipyridine semiconductor for perovskite solar cells[J]. JOURNAL OF MATERIALS CHEMISTRY C,2022,10.
APA	Zhang, Jinxue.,Kong, Fantai.,Peng, Yaole.,Zhao, Chundie.,Chen, Shuanghong.,...&Liu, Wenjun.(2022).A highly efficient interface hole transporting tunnel by a bipyridine semiconductor for perovskite solar cells.JOURNAL OF MATERIALS CHEMISTRY C,10.
MLA	Zhang, Jinxue,et al."A highly efficient interface hole transporting tunnel by a bipyridine semiconductor for perovskite solar cells".JOURNAL OF MATERIALS CHEMISTRY C 10(2022).