用于高效离子液体电解质基染料敏化太阳能电池的有机染料共敏化

Co-sensitization of organic dyes for efficient ionic liquid electrolyte-based dye-sensitized solar cells.

作者信息

Kuang Daibin, Walter Pablo, Nüesch Frank, Kim Sanghoon, Ko Jaejung, Comte Pascal, Zakeeruddin Shaik M, Nazeeruddin Mohammad K, Grätzel Michael

机构信息

Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.

出版信息

Langmuir. 2007 Oct 23;23(22):10906-9. doi: 10.1021/la702411n. Epub 2007 Sep 20.

DOI:10.1021/la702411n

PMID:17880255

Abstract

The co-sensitization of two organic dyes (SQ1 and JK2), which are complementary in their spectral responses, shows enhanced photovoltaic performance compared with that of an individual organic dye-sensitized solar cell. The power conversion efficiency of the co-sensitized organic dye solar cell based on the newly developed binary ionic liquid (solvent-free) electrolyte gives 6.4% under AM 1.5 sunlight at 100 mW/cm2 irradiation, which is higher than that of individual dye-sensitized solar cells. The incident monochromatic photon-to-current conversion efficiency (IPCE) of the co-sensitized solar cell shows typical absorption peaks at 530 and 650 nm corresponding to the two dyes and displays a broad spectral response over the entire visible spectrum with IPCE of >40% in the 400-700 nm wavelength domain.

摘要

两种有机染料（SQ1和JK2）在光谱响应上具有互补性，与单个有机染料敏化太阳能电池相比，它们的共敏化表现出增强的光伏性能。基于新开发的二元离子液体（无溶剂）电解质的共敏化有机染料太阳能电池，在100 mW/cm2辐照的AM 1.5太阳光下，功率转换效率为6.4%，高于单个染料敏化太阳能电池。共敏化太阳能电池的入射单色光子-电流转换效率（IPCE）在530和650 nm处显示出对应于两种染料的典型吸收峰，并且在整个可见光谱范围内显示出宽光谱响应，在400 - 700 nm波长范围内IPCE > 40%。