本研究利用液晶材料的自组装特性,将胆甾醇油酸酯3β-H ydroxy-5-cholestene 3-oleate掺杂有机聚合物太阳能电池活性层P3HT∶ PC61BM内,制备出不同掺杂比例的光伏器件.实验结果表明,液晶掺杂质量比为0.3％时,器件的光电转换效率最高.说明液晶分子可诱导活性层材料分子在结晶过程中有序排列,减少层内分子团簇,减少活性层薄膜缺陷,形成有效的载流子传输通道.适当的掺杂比例,增大了器件并联电阻和填充因子,器件性能得到改善.
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