水溶性V_2O_5在聚合物太阳能电池中的应用  

Role of Solution-processed V_2O_5 in Organic Solar Cell

作　　者：李嘉琪[1] 刘彩霞[1] 郭文滨[1] 

机构地区：[1]吉林大学电子科学与工程学院集成光电子国家重点实验室,吉林长春130012

出　　处：《发光学报》2013年第9期1245-1249,共5页Chinese Journal of Luminescence

基　　金：国家自然科学基金(61006013)资助项目

摘　　要：为了提高聚合物太阳能电池的能量转换效率,选择水溶性V2O5作为阳极缓冲层制备了结构为ITO/TiO2/P3HT∶PCBM/V2O5/Ag的电池器件。V2O5纳米线采用水热法制成。研究了V2O5浓度和退火温度对有机太阳能电池器件性能的影响。实验结果表明:V2O5质量浓度为300μg/mL的器件的效率最高,达到了2.35%,远大于无阳极缓冲层器件的效率0.14%;80℃是V2O5退火的最佳温度。与热沉积方法相比,可溶液处理的V2O5作为阳极缓冲层具有工艺简单且可大面积制备的优点,电池的效率得到了较大幅度的提高。In order to improve the power conversion efficiency of the organic solar cell,a solutionprocessed vanadium pentoxide was used as an anode buffer layer.The solution-processed V 2 O 5 nanowire was synthesised by using hydrothermal method.The device structure was ITO/ TiO 2/ P3HT∶ PCBM/ V 2 O 5/ Ag.The influence of V 2 O 5 concentrations and annealing temperature on the device performance was investigated.The experimental results indicate that the power conversion efficiency(PCE of 2.35%) is the highest when the V 2 O 5 mass concentration is 300 μg/ mL,much higher than that without anode buffer(PCE of only 0.14%).Moreover,80 ℃ is the relative optimum annealing temperature of V 2 O 5.Compared with thermal evaporation method,the solution-processed approach is relatively simple,attractive for mass production and greatly valuable for applications.

关 键 词：V2O5 溶液处理 太阳能电池 水热合成 

分 类 号：O482.31[理学—固体物理]