摘要
采用植物染料叶绿素和叶黄素,模拟光合作用的光电转化,以单独和混合等方式敏化纳晶多孔Ti O2膜电极,制备了太阳能光化学电池.测试电池的输出特性发现,叶绿素和叶黄素以不同浓度混合后敏化的电池转化效率η为叶绿素和叶黄素单独敏化时的5.8倍和1.4倍,最大输出功率Wopt为叶绿素和叶黄素单独敏化时的5.7倍和1.4倍.混合染料敏化表现出明显的非线性叠加效应,其效能超过两种染料分别敏化时的线性叠加.混合染料的协同效应对提高电池转化效率,获取高效、廉价、环保能源具有重要意义.
The photochemical solar cells were prepared by mimicing photoelectrical conversion of photosynthesis using nanocrystalline mesoporous TiO2 film electrode, which were sensitized by single dye of chlorophyll and xanthophyll and the mixture of different concentration of them. The results of output properties test showed that photoelectric conversion efficiency （η） of the cell sensitized by mixture of chlorophyll and xanthophyll were 5.8 times and 1.4 times as high as of which the cells sensitized by each single dye, the maximum output power（Wopt） was 5.7 times and 1.4 times of the cells sensitized by each single dye. The η and maximum Wopt exceeded linear superposition of the cells were sensitized by each single dye. This synergistic effect would be very important to improve η of the cells and obtain cheap and clean energy with great efficiency.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第2期184-187,共4页
Acta Photonica Sinica
基金
国家杰出青年科学基金(批准号:50025207)资助项目
