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

doi:10.1002/asia.200900245

CORC > 北京大学 > 化学与分子工程学院

	Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers
	Wang, Jin-Liang ; Zhong, Chengmei ; Tang, Zheng-Ming ; Wu, Hongbin ; Ma, Yuguo ; Cao, Yong ; Pei, Jian
刊名	chemistry an asian journal
	2010
关键词	conducting materials dendrimers molecular devices molecular electronics photophysics ORGANIC SOLAR-CELLS ENHANCED 2-PHOTON ABSORPTION FIELD-EFFECT TRANSISTORS LOW-BAND-GAP OLIGOTHIOPHENE-FUNCTIONALIZED TRUXENE ENERGY-CONVERSION EFFICIENCY INTERNAL CHARGE-TRANSFER LIGHT-EMITTING-DIODES PHOTOPHYSICAL PROPERTIES ELECTRONIC-PROPERTIES
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.; Chemistry, Multidisciplinary; SCI(E); EI; 13; REVIEW; 1; 105-113; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151279]
专题	化学与分子工程学院
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.
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.
MLA	Wang, Jin-Liang,et al."Solution-Processed Bulk Heterojunction Photovoltaic Cells from Gradient pi-Conjugated Thienylene Vinylene Dendrimers".chemistry an asian journal (2010).