Transition from Photoconductivity to Photovoltaic Effect in P3HT/CuInSe2 Composites

doi:10.1021/jp300973c

CORC > 化学研究所 > 中国科学院化学研究所

	Transition from Photoconductivity to Photovoltaic Effect in P3HT/CuInSe2 Composites
	Yang, Yang 1,2; Zhong, Haizheng 1; Bai, Zelong 1; Zou, Bingsuo 1; Li, Yongfang 2; Scholes, Gregory D.3,4
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2012-04-05
卷号	116 期号:13 页码:7280-7286
ISSN号	1932-7447
DOI	10.1021/jp300973c
英文摘要	We report the investigation of composites of poly-(3-hexylthiophene) (P3HT) and CuInSe2 nanocrystals (NICs). CuInSe2 NCs were synthesized at gram scale through a colloidal route. Cyclic voltammetry was used to determine the HOMO-LUMO energy levels, as well as the energies of trap states intrinsic to CuInSe2 NCs. The results suggest that nanocrystal-polymer charge transfer is foreseeable in the P3HT and CuInSe2 system because of their type II band alignment. We studied optical properties of the hybrid composite films of P3HT and CuInSe2 NCs as a function of P3HT/CuInSe2 NCs weight ratios. The quenching of photoluminescence spectra with the increase of CuInSe2 ratio in the composite was interpreted to result from charge transfer between the polymer and CuInSe2 NCs. We further studied photodiode devices that exhibited a transition from photoconductive gain to the photovoltaic effect with an increase of the P3HT/CuInSe2 weight ratio. Performance of the photovoltaic devices was strongly limited by intrinsic traps associated with the CuInSe2 NCs.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000302336700006
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47785]
专题	中国科学院化学研究所
通讯作者	Zhong, Haizheng
作者单位	1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China 3.Univ Toronto, Inst Opt Sci, Dept Chem, Toronto, ON M5S 3H6, Canada 4.Univ Toronto, Ctr Quantum Informat & Quantum Control, Toronto, ON M5S 3H6, Canada
推荐引用方式 GB/T 7714	Yang, Yang,Zhong, Haizheng,Bai, Zelong,et al. Transition from Photoconductivity to Photovoltaic Effect in P3HT/CuInSe2 Composites[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(13):7280-7286.
APA	Yang, Yang,Zhong, Haizheng,Bai, Zelong,Zou, Bingsuo,Li, Yongfang,&Scholes, Gregory D..(2012).Transition from Photoconductivity to Photovoltaic Effect in P3HT/CuInSe2 Composites.JOURNAL OF PHYSICAL CHEMISTRY C,116(13),7280-7286.
MLA	Yang, Yang,et al."Transition from Photoconductivity to Photovoltaic Effect in P3HT/CuInSe2 Composites".JOURNAL OF PHYSICAL CHEMISTRY C 116.13(2012):7280-7286.