Synthesis and preliminary photovoltaic behavior study of a soluble polyimide containing ruthenium complexes

被引：16

作者：

Wang, Yanrong ^{[1
,2
]}

Xu, Shengang ^{[1
]}

Chen, Tao ^{[1
]}

Guo, Hongwu ^{[1
]}

Liu, Qiongyan ^{[3
]}

Ye, Baoxian ^{[3
]}

Zhang, Zhi ^{[4
]}

He, Zhiqun ^{[4
]}

Cao, Shaokui ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450052, Peoples R China

[2] Henan Univ Technol, Sch Mat Sci & Engn, Zhengzhou 450007, Peoples R China

[3] Zhengzhou Univ, Dept Chem, Zhengzhou 450052, Peoples R China

[4] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Inst Optoelect Technol, Beijing 100044, Peoples R China

来源：

POLYMER CHEMISTRY | 2010年 / 1卷 / 07期

基金：

中国国家自然科学基金;

关键词：

CONTAINING CONJUGATED POLYMER; RHENIUM DIIMINE COMPLEXES; SENSITIZED SOLAR-CELLS; DEPOSITION PROCESS; DYE; DEVICES; COPOLYMERS; FILMS;

D O I：

10.1039/c0py00096e

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Aiming to prepare photovoltaic materials with light and thermal stability, ruthenium complexes with broad absorption in the visible region were introduced to a polyimide, bpy-PI, which contains a bipyridine ligand in each repeating unit. The chemical structures of the monomers and polymers were confirmed by H-1 NMR, IR, and elemental analysis. The prepared polyimide containing ruthenium complexes (bpy-PI-Ru) showed good solubility in common organic solvents such as DMF, NMP, DMSO and DMAc. UV-vis measurements revealed that bpy-PI-Ru exhibits very broad absorptions in the range 350-750 nm due to the introduction of ruthenium complexes. Such absorption enhancement would enable the polymer to harvest solar light in the visible region. The onset oxidation potential of bpy-PI-Ru was measured as 0.68 V (vs. SCE), which is about 0.06 V lower than that of bpy-PI. The band gap of bpy-PI-Ru is 1.35 eV as measured by cyclic voltammetry. Solar cell devices were fabricated based on bpy-PI-Ru or the blend of bpy-PI-Ru and PCBM. Current density-voltage (J-V) measurement of the devices showed a typical rectifying behavior under a 55 mW cm(-2) compact white arc lamp. The open-circuit voltages and short-circuit densities were measured to be in the ranges 0.19-0.52 V and 0.0015-0.38 mA cm(-2), respectively. The short-circuit density could be further improved by anode modification through deposition of PEDOT:PSS on ITO surface.

引用

页码：1048 / 1055

页数：8

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