Unsymmetrical alkoxy zinc phthalocyanine for sensitization of nanocrystalline TiO2 films

被引:140
作者
Giribabu, L. [1 ]
Kumar, Ch. Vijay
Reddy, V. Gopal
Reddy, P. Yella
Rao, Ch. Srinivasa
Jang, Song-Rim
Yum, Jun-Ho
Nazeeruddin, Md. K.
Graetzel, M.
机构
[1] Indian Inst Chem Technol, Inorgan & Phys Chem Div, Nanomat Lab, Hyderabad 500007, Andhra Pradesh, India
[2] Swiss Fed Inst Technol, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon Interfaces, CH-1015 Lausanne, Switzerland
关键词
dye-sensitized solar cells; phthalocyanine; alkoxy groups; unsymmetrical; redox electrolyte; NEAR-IR SENSITIZATION; EFFICIENT;
D O I
10.1016/j.solmat.2007.05.004
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A new photosensitizer, unsymmetrical alkoxy zinc phthalocyanine based on 'push-pull' concept, has been synthesized and fully characterized by CHN, MALDI-TOF, UV-Vis, fluorescence spectroscopies and cyclic voltammetry. The new phthalocyanine photosensitizer has eight alkoxy and two carboxyl groups that act as electron releasing (push) and withdrawing (Pull), respectively. Moreover, the alkoxy groups increase the solubility of the new photosensitizer in common organic solvents, and the two carboxyl groups serve to graft on to nanocrystalline TiO2. The new photosensitizer was tested in dye-sensitized solar cells and its performance was compared with PCH001. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1611 / 1617
页数:7
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