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以聚(3-己基噻吩)(P3HT)为电子给体,[6,6]-苯基-C60丁酸甲酯(PCBM)为电子受体材料,制备了不同浓度活性层材料(P3HT:PCBM)的聚合物太阳能电池.通过对比电池性能参数,活性层表面形貌,进一步分析了氯苯溶剂中有机半导体材料的分散规律,并讨论了溶液温度和浓度对溶质粒径的影响,以及粒径大小对器件性能的影响.结果表明,溶液中溶质直径在4000 nm左右的粒子占有较大比例,溶液的浓度和温度对溶液中粒子的粒径有明显的影响,浓度较低时,溶质粒径受温度影响较大.相反,温度对高浓度溶液中的溶质粒径的影响作用减小.溶液浓度为12.67 mg/mL时,分散效果最好,具有最优的填充因子,浓度为19.00 mg/mL时,具有最优的短路电流和能量转换效率.
Different concentration of active layer material (P3HT: PCBM) was prepared using poly (3-hexylthiophene) (P3HT) as electron donor and [6,6] -phenyl-C60 butyrate methyl ester (PCBM) as electron acceptor. ) By comparing the performance parameters of the battery, the surface morphology of the active layer, further analysis of the dispersion of organic semiconductor materials in chlorobenzene solvent dispersion, and discusses the solution temperature and concentration on the solute particle size and particle size The size of the device on the performance of the device.The results show that the solution solute diameter of about 4000 nm particles occupy a large proportion of the solution concentration and temperature on the particle size of the solution has a significant effect at lower concentrations, the solute particle size Affected by temperature greatly.On the contrary, the effect of temperature on the solute particle size in high concentration solution was reduced.It had the best dispersion factor at the concentration of 12.67 mg / mL, and the optimal filling factor was 19.00 mg / mL, it has the best short-circuit current and energy conversion efficiency.