长期实时监测对染料敏化太阳电池界面及光电性能的影响  

The effect of long-term real-time monitoring on interface and photoelectric performance of dye-sensitized cells

作　　者：陈双宏[1] 潘斌 翁坚 黄阳[1] 肖尚锋 张昌能 戴松元[1,2] 

机构地区：[1]中国科学院等离子体物理研究所中国科学院新型薄膜太阳电池重点实验室,合肥230031 [2]华北电力大学北京市新型薄膜太阳电池重点实验室,北京102206

出　　处：《中国科学：物理学、力学、天文学》2015年第4期102-108,共7页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家重点基础研究发展计划(编号:2011CBA00700);国家自然科学基金(批准号:61404142;61204075)资助项目

摘　　要：本文借助拉曼光谱和电化学阻抗等测试手段,研究长期实时监测下染料敏化太阳电池光电性能的变化及其影响机理.实验结果表明,给电池加载?0.1–0.7 V的测试偏压,经过10000次实时循环监测后,电池拉曼光谱、电池界面阻抗、电子传输和复合时间与其在开路条件下变化趋势基本一致;长期实时监测对电池稳定性研究无影响.然而,如果在实时监测中给电池加载远高于其开路电压的偏压,电池的界面和光电性能将受到影响,电池内部染料将可能发生脱附效应,电池性能将急剧下降,实时监测结果将会失真.In this paper, the effect on DSC photovoltaic performance and its mechanism under long-term real-time monitoring were investigated by Raman spectroscopy and electrochemical impedance spectroscopy. The experimental results indicated that the Raman spectroscopy, interface impedance, electron transport and recombination time change with the same trend after 10000 cycles under -0.1-0.7 V bias and open circuit condition. Real-time monitoring has no effect on cells performance. However, if the bias voltage of real-time monitoring was much higher than open circuit voltage of the DSC, the DSC performance would be affected and dye desorption may occur. A dramatic reduction in the cells performance was observed. The results of real-time monitoring be distorted.

关 键 词：染料敏化 太阳电池 实时监测 

分 类 号：TM914.4[电气工程—电力电子与电力传动]