Photo-induced intramolecular charge transfer from antenna to anchor groups in phenoxazine dyes

被引：18
|
作者：
Yang, Songqiu [1 ,2 ]
Liu, Jianyong [1 ]
Zhou, Panwang [1 ]
Han, Keli [1 ]
He, Guozhong [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2011年 / 512卷 / 1-3期
关键词：
ORGANIC CHROMOPHORES;
D O I：
10.1016/j.cplett.2011.06.088
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Time-resolved transient absorption spectroscopy in the visible region and density functional theory methods are used to investigate the excited-state dynamics of two metal-free organic sensitizers used in dye-sensitized solar cells (DSSCs). The triphenylamine (TPA) group in TH305 acts as an energy antenna to absorb light at approximately 381 nm. The energy absorbed by TPA can be efficiently used by DSSCs through intramolecular charge transfers from the TPA group to the cyanoacrylic acid group. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码：66 / 69
页数：4
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