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题名: Organic dyes based on triphenylamine for dye-sensitized solar cells: Structure-property relationships
作者: Shang, Huixia1; Li, Qikai2; Jiang, Kejian2; Zhan, Xiaowei3
关键词: Dye-sensitized solar cell ; Organic dye ; Metal-free ; Triphenylamine
刊名: JOURNAL OF ENERGY CHEMISTRY
发表日期: 2016-07-01
卷: 25, 期:4, 页:615-620
收录类别: SCI
英文摘要: Three new organic dyes based on triphenylamine with a structure of A-D-A-D-A (D1), A-D-A (D2) and D-A (D3) were designed, theoretically calculated and synthesized for dye-sensitized solar cells. Dye D1 exhibits a broader absorption than D2 and D3, due to the intramolecular charge transfer between the donor triphenylamine and the acceptor benzothiadiazole. Dye D1 exhibits a lower HOMO and a lower LUMO than D2 and D3 due to the electron-withdrawing benzothiadiazole. The number of anchoring group cyanoacrylic acid has no obvious influence on absorption and energy levels of D2 and D3. The LUMO of D1 locates on benzothiadiazole rather than cyanoacrylic acid anchoring groups, while the LUMOs of D2 and D3 are localized on cyanoacrylic acid. D2 and D3 give higher short-circuit current density than D1. D3 with one anchoring group gives the highest open-circuit voltage. Consequently, the D3-based device gives the highest efficiency. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35681
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Handan Univ, Handan Key Lab Organ Small Mol Mat, Handan 056005, Hebei, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
3.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China
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