图案化聚合物电极及其在有机太阳能电池中应用
DOI: 10.13232/j.cnki.jnju.2015.01.003, PP. 14-19
Keywords: 图案化pedot:pss,有机太阳能电池,软压印
Abstract:
为了提高聚合物载流子迁移率,本文对图案化聚合物聚3,4-乙撑噻吩/聚苯乙烯磺酸盐(pedot:pss)作为半导体聚合物的基底对载流子迁移率的影响进行研究。本文以聚二甲基硅氧烷(pdms)为模板,利用基于毛细力原理的软压印技术,使硬度系数很高的聚合物pedot:pss形成图案化结构。此压印方法可形成大面积高保真的图案,且适合工业化生产。阐述了图案化pedot:pss可增加与活性层的接触面积,从而缩短聚合物载流子的迁移路径,有效地提高了聚合物载流子的迁移率。同时图案化结构散射入射光进入活性层,促进活性层光的吸收,从而提高了光电流。最后,本文将图案化pedot:pss作为电极应用到有机太阳能电池聚3-已基噻吩与富勒烯衍生物(p3ht:pcbm)共混体系中,对其研究发现图案化后的pedot:pss能有效地提高了太阳能电池p3ht:pcbm共混体系的能量转换效率。
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