基于柔性基底异质结有机薄膜的光伏器件

Heterojunction organic solar cell based on flexible substrate

研究了基于柔性基板的有机薄膜太阳能电池,实验以聚3,4-乙撑二氧噻吩/聚苯乙烯磺酸盐作为阳极修饰层,1,4-亚苯基亚乙烯基(MEH-PPV)材料作为给体层以及富勒烯(C60)材料作为受体层制备异质结柔性有机太阳能电池。实验结果表明:增加阳极修饰层,虽然会阻挡光的吸收,但是可以大幅度地提高短路电流、开路电压、填充因子和能量转换效率4个参数。并发现MEH-PPV受体层的厚度对有机太阳能电池的性能有较大影响,当受体层厚度为90nm时能量转换效率达到最大,为1.29%。

Organic thin film solar cells based on flexible substrate were studied, which were prepared by using poly （3, 4- ethylenedioxythiophene） ： poly （4-styrenesulfonic acid） （PEDOT： PSS） as an anode modification layer, poly （2-methoxy, 5-（2＇- ethylhexyloxy）-l, 4-phenylene vinylene） （MEH-PPV） as a donor layer and fullerene （Cs0） as an acceptor layer. The results show that, the anode modification layer increases the short-circuit current density, open-circuit voltage, fill factor and power conversion efficiency of cells apparently although it may block the light absorption. The thickness of the acceptor layer also influences the cell＇s performance. A maximum power conversion efficiency of 1.29% has been achieved by employing 90 nm-thick MEH-PPV layer.