Spectral broadening in nanocrytalline TiO2 solar cells based on poly(p-phenylene ethynylene) and polythiophene sensitizers

被引：76
|
作者：
Mwaura, Jeremiah K. [1 ]
Zhao, Xiaoyong [1 ]
Jiang, Hui [1 ]
Schanze, Kirk S. [1 ]
Reynolds, John R. [1 ]
机构：
[1] Univ Florida, Ctr Macromol Sci & Engn, Dept Chem, Gainesville, FL 32611 USA
来源：
CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 26期
关键词：
D O I：
10.1021/cm062198d
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：
Spectral broadening in the fabrication of nanocrystalline titanium dioxide (TiO2) dye-sensitized solar cells (DSSCs), based on poly(p-phenylene ethynylene) (PPE) and poly-thiophene (PT), is discussed. The films of nanocrystalline TiO2 were coated on fluorine-doped tin oxide (FTO) glass substrate. It was observed that carboxylated PPE (PPE-CO2) and carboxylated PT (PT-CO2) form uniform coatings on TiO2 films. It was also observed that the combined PPE-CO2/PToCO 2 photocurrent is a contribution from both the individual polymers. Conjugated polyelectrolytes (CPEs), with their high absorption coefficients and tunable band gaps spanning a broad portion of the visible and near-infrared spectrum, serve as alternative light-harvesting and charge transfer material in these cells.
引用
收藏
页码：6109 / 6111
页数：3
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