基底温度对刮涂制备的P3HT∶PCBM薄膜形貌和光伏电池性能的影响  

Effects of Substrate Temperature on Morphology and Photovoltaic Cell Performance of P3HT∶ PCBM Thin Film Fabricated by Doctor-Blading Technique

作　　者：吴江[1] 谢志元[1] 郭世杰[2] 

机构地区：[1]中国科学院长春应用化学研究所,高分子化学与物理国家重点实验室,长春130022 [2]吉林大学第一医院,长春130021

出　　处：《应用化学》2012年第12期1417-1422,共6页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目(60977026);吉林省科技发展计划项目(201105029)

摘　　要：研究了刮涂制备P3HT∶PCBM(P3HT:聚3-己基噻吩,PCBM:[6,6]-苯基-C61-丁酸甲酯)活性层的过程中,基底温度对P3HT∶PCBM活性层薄膜性质和电池性能的影响。结果表明,提高基底温度在缩短薄膜干燥时间的同时,抑制了PCBM相的大尺度聚集,并改善了P3HT∶PCBM薄膜中P3HT在(100)方向上的结晶程度,但降低了π-π共轭方向上的有序度。制备的光伏电池经过进一步退火处理后可形成良好的互穿网络结构,能量转换效率可达3.93%。The effects of the substrate temperature on the performance of active layers and characteristics of the polymer solar cells fabricated with doctor-blading were studied.As the substrate temperature increases,the drying time of wet film could be shortened while the large scale aggregation of [6,6]-phenyl C61-butyric acid methyl ester（PCBM） phase could be restrained.Along with the increase of substrate temperature,both the crystallinity of poly（3-hexylthiophene）（P3HT） at the（100） direction and the producing efficiency of the film were increased while the ordering of the π-π stacking was lowered.After annealing,an interpenetrate network was formed in the active layer of the polymer photovoltaic cell and the power conversion efficiency could reach up to 3.93%.

关 键 词：刮涂方法 聚合物太阳能电池 基底温度 

分 类 号：O631.2[理学—高分子化学]