Influence of the sensitizer adsorption mode on the open-circuit potential of dye-sensitized solar cells

被引：321

作者：

De Angelis, Filippo

Fantacci, Simona

Selloni, Annabella

Graetzel, Michael

Nazeeruddin, Mohammed K.

机构：

[1] Univ Perugia, Inst CNR Sci & Tecnol Mol, Dipartimento Chim, I-06213 Perugia, Italy

[2] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[3] Swiss Fed Inst Technol, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne, Switzerland

来源：

NANO LETTERS | 2007年 / 7卷 / 10期

关键词：

D O I：

10.1021/nl071835b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a combined experimental and theoretical study on the origin of the different open circuit potentials observed in dye-sensitized solar cells using Ru(II)-polypyridyl homoleptic and heteroleptic sensitizers. We have measured the photovoltaic data of different sensitizers and used DFT calculations to analyze the electronic structure of dye-sensitized TiO2 nanoparticles. Heteroleptic sensitizers adsorb onto TiO2 via a single bipyridine, leading to a TiO2 conduction band downshift and overall reduction of the cell open circuit potential.

引用

页码：3189 / 3195

页数：7

共 45 条

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