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D-A-Ar-type small molecules with enlarged pi-system of phenanthrene at terminal for high-performance solution processed organic solar cells
Zhang, Youming1; Tan, Hua1; Xiao, Manjun1; Bao, Xichang2; Tao, Qiang1; Wang, Yafei1; Liu, Yu1; Yang, Renqiang2; Zhu, Weiguo1
2014-06-01
Source PublicationORGANIC ELECTRONICS
Volume15Issue:6Pages:1173-1183
Abstract

Two novel D-A-Ar-type small molecules of TPA-DPP-P and TPA(DPP-P)(2) were synthesized and characterized, in which triphenylamine (TPA), diketopyrrolopyrrole (DPP) and phenanthrene (P) were used as the donor (D) core, acceptor (A) arm, and enlarged pi-system of polycyclic arene (Ar) terminal. Their absorptive, electro-chemical, thermal, and photovoltaic properties were preliminary investigated. Significantly improved photo-physical and photovoltaic performances were observed for both small molecules containing the planar P terminal in comparison with those for their parent D-A-type molecule of TPA-DPP. The highest power conversion efficiency (PCE) of 3.42% and a maximum short-circuit current density (J(sc)) of 9.2 mA/cm(2) were obtained in the solution-processed TPA(DPP-P)(2)-based solar cells using [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) as acceptor. The PCE and Jsc values are 8.76 and 4.97 times higher than those of the TPA-DPP-based cells, respectively. It indicates that appending the enlarged p-system of the planar P terminal and incorporating the DPP-P arm into D-A-type small molecule are efficient approaches to improve photo-physical and photovoltaic performances for its resulting molecules. (C) 2014 Elsevier B. V. All rights reserved.

SubtypeArticle
KeywordDonor-acceptor Phenanthrene Diketopyrrolopyrrole Triphenylamine Organic Solar Cells
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.orgel.2014.03.011
WOS KeywordHIGH PHOTOVOLTAIC EFFICIENCY ; LOW-BANDGAP POLYMERS ; OPEN-CIRCUIT VOLTAGE ; DIKETOPYRROLOPYRROLE DERIVATIVES ; DEVICE OPTIMIZATION ; CONJUGATED POLYMER ; END-GROUPS ; ACCEPTOR ; BENZODITHIOPHENE ; TRIPHENYLAMINE
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000334740100014
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6300
Collection先进有机功能材料团队
Affiliation1.Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Youming,Tan, Hua,Xiao, Manjun,et al. D-A-Ar-type small molecules with enlarged pi-system of phenanthrene at terminal for high-performance solution processed organic solar cells[J]. ORGANIC ELECTRONICS,2014,15(6):1173-1183.
APA Zhang, Youming.,Tan, Hua.,Xiao, Manjun.,Bao, Xichang.,Tao, Qiang.,...&Zhu, Weiguo.(2014).D-A-Ar-type small molecules with enlarged pi-system of phenanthrene at terminal for high-performance solution processed organic solar cells.ORGANIC ELECTRONICS,15(6),1173-1183.
MLA Zhang, Youming,et al."D-A-Ar-type small molecules with enlarged pi-system of phenanthrene at terminal for high-performance solution processed organic solar cells".ORGANIC ELECTRONICS 15.6(2014):1173-1183.
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