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首页> 外文期刊>ACS applied materials & interfaces >Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene
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Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene

机译：表面微/纳米纹理杂交PEDOT：PSS-Silicon光伏电池采用Kirigami Graphene

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摘要

Kirigami graphene allows a two-dimensional material to transform into a three-dimensional structure, which constitutes an effective transparent electrode candidate for photovoltaic (PV) cells having a surface texture. The surface texture of an inverted pyramid was fabricated on a Si substrate using photolithography and wet etching, followed by metal-assisted chemical etching to obtain silicon nanowires on the surface of the inverted pyramid. Kirigami graphene with a cross-pattern array was prepared using photolithography and plasma etching on a copper foil. Then, kirigami graphene was transferred onto hybrid heterojunction PV cells with a poly(ethylene terephthalate)/silicone film. These cells consisted of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate)-(PEDOT:PSS) as the p-type semiconductor, Si(100) as the inorganic n-type semiconductor, and a silver comb electrode on top of PEDOT:PSS. The conductivity of PEDOT:PSS was greatly improved. This improvement was significantly higher than that achieved by the continuous graphene sheet without a pattern. Transmission electron microscopy and Raman spectroscopy results revealed that the greater improvement with kirigami graphene was due to the larger contact area between PEDOT:PSS and graphene. By using two-layer graphene having a kirigami pattern, the power conversion efficiency, under simulated AM1.5G illumination conditions, was significantly augmented by up to 9.8% (from 10.03 to 11.01%).
机译：Kirigami Graphene允许二维材料变换成三维结构，其构成具有表面纹理的光伏（PV）电池的有效透明电极候选物。使用光刻和湿法蚀刻在Si衬底上制造倒金字塔的表面纹理，然后用金属辅助化学蚀刻在倒金字塔的表面上获得硅纳米线。使用光刻和铜箔上的等离子体蚀刻制备具有交叉图案阵列的Kirigami Graphene。然后，将Kirigami石墨烯与聚（对苯二甲酸乙二醇酯）/硅氧烷膜转移到杂化异质结PV电池上。这些细胞由聚（3,4-亚乙二氧基噻吩）聚（苯乙烯磺酸盐） - （PEDOT） - （PEDOT：PSS）作为P型半导体，Si（100）作为无机N型半导体，以及位于PEDOT顶部的银梳电极：PSS。 PEDOT的电导率：PSS大大提高。这种改进显着高于没有图案的连续石墨烯片所能实现的。透射电子显微镜和拉曼光谱结果表明，Kirigami石墨烯的改善是由于PEDOT：PSS和石墨烯之间的较大接触面积。通过使用具有Kirigami图案的双层石墨烯，在模拟AM1.5G照明条件下的功率转换效率显着增强至多9.8％（从10.03到11.01％）。

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