Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers

doi:10.1002/asia.200900245

CORC > 化学研究所 > 中国科学院化学研究所

	Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers
	Wang, Jin-Liang 1; Zhong, Chengmei 2; Tang, Zheng-Ming 1; Wu, Hongbin 2; Ma, Yuguo 1; Cao, Yong 2; Pei, Jian 1
刊名	CHEMISTRY-AN ASIAN JOURNAL
	2010
卷号	5 期号:1 页码:105-113
关键词	Conducting Materials Dendrimers Molecular Devices Molecular Electronics Photophysics
ISSN号	1861-4728
DOI	10.1002/asia.200900245
英文摘要	A series of gradient a-conjugated dendrimers and their corresponding models based on 5,5,10,10,15,15-hexahexyltruxene moieties as nodes and oligo(thienylene vinylene) (OTVs) units with different lengths as branching arms are synthesized in good yields through Wittig-Horner reactions. All new compounds are fully characterized by (1)H and (13)C NMR spectroscopy, elemental analysis, and MALDI-TOF MS or ESI-MS. Investigation of their photophysical properties reveals that the gradient dendritic scaffold not only results in a higher molar absorption coefficient and broader absorption region than those of their corresponding model compounds, but also improves the PL quantum yields relative to the corresponding OTVs. The suitable HOMO and LUMO levels as well as excellent film forming properties make these molecules potential candidates for organic solar cells. Solution-processed bulk heterojunction solar cells using these dendrimers as donor and [6,6]-phenyl-C(61) butyric acid methyl ester as acceptor are prepared and tested. The power conversion efficiency of the devices based on G0-4-2 is 0.40% under illumination of air mass 1.5 and 100 mW cm(-2). This is the highest record value for OTV-based materials to date. Although the absorption band of dendrimer G0-4-2 is much narrower than that of poly(3-hexylthienylene vinylene) (P3HTV), the efficiency of its solar cell device is almost twice that of the device based on P3HTV. This result shows clearly the advantage of gradient dendritic structures as active materials for photovoltaic cells.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000273712600014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70075]
专题	中国科学院化学研究所
通讯作者	Ma, Yuguo
作者单位	1.Peking Univ, Coll Chem & Mol Engn, Minist Educ, Beijing Natl Lab Mol Sci,Key Lab Bioorgan Chem &, Beijing 100871, Peoples R China 2.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Minist Educ, Key Labs Specially Funct Mat, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jin-Liang,Zhong, Chengmei,Tang, Zheng-Ming,et al. Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers[J]. CHEMISTRY-AN ASIAN JOURNAL,2010,5(1):105-113.
APA	Wang, Jin-Liang.,Zhong, Chengmei.,Tang, Zheng-Ming.,Wu, Hongbin.,Ma, Yuguo.,...&Pei, Jian.(2010).Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers.CHEMISTRY-AN ASIAN JOURNAL,5(1),105-113.
MLA	Wang, Jin-Liang,et al."Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers".CHEMISTRY-AN ASIAN JOURNAL 5.1(2010):105-113.