Toward high open-circuit voltage by smart chain engineering in 2D-conjugated polymer for polymer solar cells

	Toward high open-circuit voltage by smart chain engineering in 2D-conjugated polymer for polymer solar cells
	Cheng, Xiao 1; Wan, Qun 1; Wu, Yue 1; Guo, Bing 1; Guo, Xia 1; Li, Yaowen 1; Zhang, Maojie 1; Cui, Chaohua 1; Li, Yongfang 1,2
刊名	SOLAR ENERGY MATERIALS AND SOLAR CELLS
	2016-05-01
卷号	149 页码:162-169
关键词	Polymer solar cells 2D-conjugated polymer Molecular energy levels Electron-donating side-chains
英文摘要	Two electron-donating sides chain (octylthio and methoxy) were strategically attached on BDTT unit to develop two new polymers (PBDTT-OS-TT-EF and PBDTT-OS-TT-CF) as donor materials for polymer solar cells. PBDTT-OS-TT-EF and PBDTT-OS-TT-CF show broad absorption spectra with narrow optical band gap of 1.52 and 1.56 eV, and low-lying HOMO energy level of -5.34 and -5.46 eV, respectively. A high V-oc of 0.92 V was obtained from the PSC devices based on PBDTT-OS-TT-EF. Particularly, the V-oc of PSC device based on PBDTT-OS-TT-CF is as high as 1.00 V, which is the highest value for the devices based on TT-base polymers. The results indicate that the engineering two electron-donating side chains in BDTT unit is an effective strategy to narrow the band-gap and manipulate the energy levels of polymers, which can be potentially applied to design polymer donor materials with high V-oc values. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/35978]
专题	化学研究所_有机固体实验室
作者单位	1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xiao,Wan, Qun,Wu, Yue,et al. Toward high open-circuit voltage by smart chain engineering in 2D-conjugated polymer for polymer solar cells[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2016,149:162-169.
APA	Cheng, Xiao.,Wan, Qun.,Wu, Yue.,Guo, Bing.,Guo, Xia.,...&Li, Yongfang.(2016).Toward high open-circuit voltage by smart chain engineering in 2D-conjugated polymer for polymer solar cells.SOLAR ENERGY MATERIALS AND SOLAR CELLS,149,162-169.
MLA	Cheng, Xiao,et al."Toward high open-circuit voltage by smart chain engineering in 2D-conjugated polymer for polymer solar cells".SOLAR ENERGY MATERIALS AND SOLAR CELLS 149(2016):162-169.