温度对多硫电解质及量子点敏化太阳能电池性能的影响  

Influence of Temperature on the Properties of Polysulfide Electrolyte and Quantum Dot Sensitized Solar Cells

作　　者：史继富[1] 万青翠[1] 徐刚[1] 徐雪青[1] 樊晔[1] 

机构地区：[1]中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广州510640

出　　处：《物理化学学报》2011年第10期2360-2366,共7页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(21073193,21103194);广东省科技计划(2009B011100005);中国科学院广州能源研究所所长创新基金(y007r71001)资助项目~~

摘　　要：采用电化学的方法研究了温度对多硫电解质导电性能及量子点敏化太阳能电池光电性能的影响.结果表明:随着温度的升高,电解质的电导率逐步升高,多硫离子在电解质中的扩散阻力变小;另外,随着温度的升高,量子点敏化太阳能电池的光电转化效率逐渐降低,这主要是由于在较高的温度下,电池的暗反应逐渐增大和量子点的脱附引起的.We studied the influence of temperature on the conductivity of a polysulfide electrolyte and the photovoltaic performance of quantum dot sensitized solar cells by electrochemical methods. The results indicate that the conductivity of the electrolyte increases and the diffusion impedance of the polysulfide ions in the electrolyte decreases with an increase in the temperature. Moreover, the photoelectric conversion efficiency of the quantum dot sensitized solar cells decreases when the temperature increases. This phenomenon is mainly caused by a more serious back reaction and the desorption of quantum dots at higher temperatures.

关 键 词：量子点敏化太阳能电池 温度 电解质: 电导率 阻抗 

分 类 号：TM914.4[电气工程—电力电子与电力传动]