Exploring photocurrent output from donor/acceptor bulk-heterojunctions   by monitoring exciton quenching

doi:10.1088/1674-1056/24/6/063301

CORC > 北京大学 > 化学与分子工程学院

	Exploring photocurrent output from donor/acceptor bulk-heterojunctions by monitoring exciton quenching
	Wang Xin-Ping ; He Zhi-Qun ; Liang Chun-Jun ; Qiu Hai-An ; Jing Xi-Ping
刊名	CHINESE PHYSICS B
	2015
关键词	exciton quenching optical absorption photoluminescence photocurrent POLYMER SOLAR-CELLS PHOTOINDUCED ELECTRON-TRANSFER CHARGE-TRANSFER BLENDS PERFORMANCE GENERATION SPECTROSCOPY COMPOSITES MORPHOLOGY ACCEPTOR
DOI	10.1088/1674-1056/24/6/063301
英文摘要	In this work, a series of polymer bulk-heterojunctions is fabricated based on the combinations of different donors (Ds) (P3HT and PCPDTBT) and acceptors (As) (PCBM, ICBA, and F8BT). Exciton quenching efficiencies of the D-A pairs are obtained in order to quantify charge-transfer between the donor and the acceptor via a modified approach developed in conjunction with experimental results of optical absorption and photoluminescence spectra. It is discovered that the exciton quenching efficiency in the combination of PCPDTBT: PCBM and P3HT: PCBM reaches 70% and over, but in PCPDTBT: ICBA it is about 12%. A relatively high Delta LUMOdonor-acceptor results in a relatively high exciton quenching efficiency, which is responsible for better charge separation. The results agreed well with the photocurrent effect of the heterojunction layers. The work offers a convenient way to predict a potentially promising photovoltaic material with a selected D-A pair.; Medium Instrument Laboratory, College of Chemistry and Molecular Engineering, Peking University; SCI(E); EI; 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); ARTICLE; zhqhe@bjtu.edu.cn; 6; 063301-01-063301-08; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/415015]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang Xin-Ping,He Zhi-Qun,Liang Chun-Jun,et al. Exploring photocurrent output from donor/acceptor bulk-heterojunctions by monitoring exciton quenching[J]. CHINESE PHYSICS B,2015.
APA	Wang Xin-Ping,He Zhi-Qun,Liang Chun-Jun,Qiu Hai-An,&Jing Xi-Ping.(2015).Exploring photocurrent output from donor/acceptor bulk-heterojunctions by monitoring exciton quenching.CHINESE PHYSICS B.
MLA	Wang Xin-Ping,et al."Exploring photocurrent output from donor/acceptor bulk-heterojunctions by monitoring exciton quenching".CHINESE PHYSICS B (2015).