Naphthalene-containing polyimides: Synthesis, characterization and photovoltaic properties of novel donor-acceptor dyes used in solar cell

来源期刊：中国有色金属学报(英文版)2009年增刊第3期

论文作者：牛海军 穆景山 张密林 罗俊 罗培辉 白续铎 王文

文章页码：589 - 593

Key words：naphthalene diimide; triphenylamine; sensitized solar cell; electrochemical properties

Abstract: Novel linear and star branched triphenylamine-containing aromatic imides were designed and synthesized by the condensation between amine-substituted triphenylamine and naphthalene-1, 4, 5, 8-tetra-carboxylic dianhydride in order to investigate the influence of topological structure on the photophysical performance. The polyimides were characterized by elementary analysis and FTIR measurements. Thermogravimetric analysis (TGA) shows that the onset temperatures of decomposition (T_d) for 5% mass loss range from 371 to 445 ℃. UV-Vis spectrum, quantum chemical calculation and cyclic voltammetry (CV) were used to obtain the dependence of energy levels on the function of structures. The introduction of triphenylamine group changes the energy level of the entire dye system. The dye-sensitized solar cells (DSSCs) prepared by using the dyes have a strong photoelectric current response in visible light region of 400-600 nm.

基金信息：the National Natural Science Foundation of China
Harbin Youth Foundation, China
China Postdoctoral Science Foundation