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	Electron Transporting Polymeric Materials with Partial Quaternization for High-Performance Organic Solar Cells
	Lei, Hongliang1,2,3; Yu, Fengyi1,2,3; Chen, Chen1,2; Li, Yulu1,2,3; Hu, Dingqin1,2; Chen, Yao1,2; Tian, Gengsui1,2,3; Liu, Lei1,2; Yang, Ke1,2; Xiao, Zeyun1,2
	2024-08-09
摘要	Efficient cathode interfacial layers (CILs) have become a crucial component of organic solar cells (OSCs). Charge extraction barriers, interfacial trap states, and significant transport resistance may be induced due to the unfavorable cathode interlayer, limiting the device performance. In this study, poly(4-vinylpyridine) is used as the CIL for OSCs, and a new type of CIL named P4VP-I is synthesized through the quaternization strategy. Compared to P4VP, P4VP-I CIL exhibits enhanced conductivity and optimized work function. OSCs employing the P4VP-I ETL demonstrate prolonged carrier lifetime, suppressed charge recombination, and achieve higher power conversion efficiencies (PCE) than the commonly used ETLs such as PFN-Br and Phen-NaDPO. A new type of CIL approxnamed P4VP-I is synthesized through the quaternization strategy. Compared to P4VP, P4VP-I CIL exhibits enhanced conductivity and optimized work function. OSCs employing the P4VP-I ETL demonstrate prolonged carrier lifetime, suppressed charge recombination, and achieve higher power conversion efficiencies (PCE) than the commonly used ETLs such as PFN-Br and Phen-NaDPO. image
关键词	cathode interfacial layers conductivity organic solar cells poly(4-vinylpyridine)
DOI	10.1002/marc.202400479
发表期刊	MACROMOLECULAR RAPID COMMUNICATIONS
ISSN	1022-1336
页码	7
通讯作者	Yang, Ke(yangke@cigit.ac.cn) ; Xiao, Zeyun(xiao.z@cigit.ac.cn)
收录类别	SCI
WOS记录号	WOS:001287267100001
语种	英语