为研究碳黑掺入量对TiO2/石墨共混薄膜的电学与电化学性能的影响，采用场发射扫描电子显微镜、四探针电阻率测试仪、电化学交流阻抗图谱以及太阳能电池综合测试仪对碳薄膜的表面形貌、电学、电化学性质以及电池的光电性能进行表征测试。结果表明：碳黑的加入使碳对电极的方块电阻降低了35%；当掺入质量分数为5%的碳黑时，碳对电极的界面电荷传输电阻及光电性能达到最佳，其光电转换效率可达到Pt对电极的74%。
The influence of mixing amount of carbon black on electrical and electrochemical properties of TiO2/graphite blend film was studied. Morphologies,electrical properties and electrochemical properties of electrodes were characterized by scanning electron microscopy,four probe method and electrochemical impedance spectroscopy,respectively. Photovoltaic performance of the cells was examined. It is found that the sheet resistance of carbon counter electrode decreases by 35% with incorporation of carbon black. When carbon black content is 5%(mass fraction),charge transfer resistance and photovoltaic performance reach the optimum. Photoelectric conversion efficiency reaches 74% of the cells with Pt counter electrode.
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