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首页> 外文期刊>Solar Energy >Effect of graphene contents in polyaniline/graphene composites counter electrode material on the photovoltaic performance of dye-sensitized solar cells (DSSCSs)
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Effect of graphene contents in polyaniline/graphene composites counter electrode material on the photovoltaic performance of dye-sensitized solar cells (DSSCSs)

机译：聚苯胺/石墨烯复合材料对电极材料对染料敏化太阳能电池的光伏性能的影响（DSSCS）

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摘要

The polyaniline/graphene (PANi/GR) composites were prepared by the in-situ polymerization technique for the counter electrode of a dye-sensitized solar cell. Adding graphene in the polyaniline matrix reduces the charge transfer resistance at the counter-electrode and thus improves the photovoltaic performance of devices. In this work, graphene contents were varied from 6% to 15%. The morphology and the crystallographic structure of PANi/GR composites were examined by Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD). The stability and electrochemical activity were investigated by Cyclic Voltammetry (CV) and chronoamperometery. The results indicated that the electrochemical and photovoltaic performances of dye-sensitized solar cells were affected by the graphene contents in composites. The solar cell constructed by PANi/9%GR composite counter-electrode indicated the overall efficiency of 7.45% and the interface resistance (R-ct) between electrolyte and counter-electrode is 20.1 Omega. This performance was slightly lower than platinum-based solar cells (PCE = 7.63% and R-ct = 19.2 Omega) fabricated under similar conditions.
机译：通过对染料敏化太阳能电池的对电极的原位聚合技术制备聚苯胺/石墨烯（PANI / GR）复合材料。在聚苯胺基质中加入石墨烯，降低了反电极的电荷传递电阻，从而提高了器件的光伏性能。在这项工作中，石墨烯含量从6％变化至15％。通过扫描电子显微镜（SEM）和X射线衍射（XRD）检查PANI / GR复合材料的形态和晶体结构。通过循环伏安法（CV）和计时荧光测量研究了稳定性和电化学活性。结果表明，染料敏化太阳能电池的电化学和光伏性能受复合材料中石墨烯内容物的影响。由PANI / 9％GR复合电极构成的太阳能电池表示的总效率为7.45％，电解质和反电极之间的界面电阻（R-CT）为20.1ω。这种性能略低于基于铂的太阳能电池（PCE = 7.63％和R-CT = 19.2ω），在类似条件下制造。

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