有机敏化剂对纳米晶TiO₂薄膜的高效共敏化作用

Efficient co-sensitization of nanocrystalline TiO(2) films by organic sensitizers.

作者信息

Yum Jun-Ho, Jang Song-Rim, Walter Pablo, Geiger T, Nüesch F, Kim Sanghoon, Ko Jaejung, Grätzel Michael, Nazeeruddin Mohammad K

机构信息

Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, CH-1015, Lausanne, Switzerland.

出版信息

Chem Commun (Camb). 2007 Nov 28(44):4680-2. doi: 10.1039/b710759e. Epub 2007 Aug 29.

DOI:10.1039/b710759e

PMID:17989831

Abstract

Dye-sensitized solar cells based on co-sensitization of organic dyes having complementary spectral absorption in the visible region resulted in a panchromatic response, which exhibited 86% incident monochromatic photon-to-current conversion efficiency in the visible region; the optimized cell gave a short circuit current density of 15.5 mA cm(-2), an open circuit voltage of 685 mV and a fill factor of 0.70 corresponding to an overall conversion efficiency of 7.43% under solar simulated light irradiation of 100 mW cm(-2).

摘要

基于在可见光区域具有互补光谱吸收的有机染料共敏化的染料敏化太阳能电池产生了全色响应，在可见光区域表现出86%的入射单色光子到电流转换效率；优化后的电池在100 mW cm(-2)的太阳模拟光照射下，短路电流密度为15.5 mA cm(-2)，开路电压为685 mV，填充因子为0.70，对应于7.43%的总转换效率。