New Benzo[1,2-b:4,5-b ']dithiophene-Based Small Molecules Containing Alkoxyphenyl Side Chains for High Efficiency Solution-Processed Organic Solar Cells

doi:10.1002/cssc.201402865

QIBEBT-IR > 先进有机功能材料研究组

	New Benzo[1,2-b:4,5-b ']dithiophene-Based Small Molecules Containing Alkoxyphenyl Side Chains for High Efficiency Solution-Processed Organic Solar Cells
	Du, Zhengkun 1,2; Chen, Weichao1 ; Wen, Shuguang1 ; Qiao, Shanlin 1; Liu, Qian 1; Ouyang, Dan 1,2; Wang, Ning 1; Bao, Xichang1 ; Yang, Renqiang 1,3
	2014-12-01
发表期刊	CHEMSUSCHEM
卷号	7 期号:12 页码:3319-3327
摘要	A new acceptor-donor-acceptor (A-D-A) small molecule, namely, BDT-PO-DPP, based on the alkoxyphenyl (PO)-substituted benzo[1,2-b:4,5-b']dithiophene (BDT) derivative and the diketopyrrolopyrrole (DPP) unit was synthesized as an electron donor for solution-processed small-molecule organic solar cells (SMOSCs). BDT-PO-DPP exhibited good thermal stability, with a 5% weight-lost temperature at 401 degrees C under a nitrogen atmosphere. BDT-PO-DPP exhibited a lower HOMO energy level of -5.25 eV and a weaker aggregation ability than alkoxy-substituted BDT-O-DPP. A bulk heterojunction SMOSC device based on BDT-PO-DPP and [6,6]-phenyl-C-61-butyric acid methyl ester was prepared, and it showed a power conversion efficiency up to 5.63% with a high open-circuit voltage of 0.83 V, a short circuit current density of 11.23 mAcm(-2), and a fill factor of 60.37% by using 1,2-dichlorobenzene as the co-solvent after thermal annealing at 110 degrees C. The results indicate that the alkoxyphenyl-substituted BDT derivative is a promising electron-donor building block for constructing highly efficient solution-processed SMOSCs.
文章类型	Article
关键词	Donor-acceptor Systems Energy Conversion Organic Solar Cells Small Molecules Thin Films
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1002/cssc.201402865
关键词[WOS]	OPEN-CIRCUIT VOLTAGE ; POLYMER ; DIKETOPYRROLOPYRROLE ; BENZODITHIOPHENE ; FULLERENE ; LEVEL
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000345976200019
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6172
专题	先进有机功能材料研究组
作者单位	1.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Du, Zhengkun,Chen, Weichao,Wen, Shuguang,et al. New Benzo[1,2-b:4,5-b ']dithiophene-Based Small Molecules Containing Alkoxyphenyl Side Chains for High Efficiency Solution-Processed Organic Solar Cells[J]. CHEMSUSCHEM,2014,7(12):3319-3327.
APA	Du, Zhengkun.,Chen, Weichao.,Wen, Shuguang.,Qiao, Shanlin.,Liu, Qian.,...&Yang, Renqiang.(2014).New Benzo[1,2-b:4,5-b ']dithiophene-Based Small Molecules Containing Alkoxyphenyl Side Chains for High Efficiency Solution-Processed Organic Solar Cells.CHEMSUSCHEM,7(12),3319-3327.
MLA	Du, Zhengkun,et al."New Benzo[1,2-b:4,5-b ']dithiophene-Based Small Molecules Containing Alkoxyphenyl Side Chains for High Efficiency Solution-Processed Organic Solar Cells".CHEMSUSCHEM 7.12(2014):3319-3327.