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OALib Journal期刊
ISSN: 2333-9721
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丝网印刷法制备高催化活性对电极
DOI: 10.1016/S1872-2067(12)60737-2, PP. 219-226
Keywords: 对电极,附着力,均匀性,简易可控,染料敏化太阳能电池
Abstract:
？对电极在染料敏化太阳能电池（DSCs）中主要起催化氧化还原反应及收集电荷的作用，铂对电极常用的制备方法为磁控溅射法，但其成本较高，制备条件苛刻.本文通过引入低成本的表面活性剂Span-85，所制得的铂对电极的附着力、透光率和均匀性显著改善，实现了面积可控，与两步浸泡法和旋涂热解法制备的对电极在DSCs中的光电转换效率分别为7.30%，6.96%和7.03%.紫外-可见吸收光谱、扫描电镜和附着力测试等结果表明，（1）添加表面活性剂有利于增加附着力及改善透光率和均匀性；（2）使用该法制备的Pt/FTO对电极的透光率与两步浸泡法制作的相同，且铂粒子分布更加均匀.电化学阻抗图谱、塔菲尔极化曲线和循环伏安曲线结果表明，丝网印刷方法制备的Pt/FTO对电极具有更加优异的催化性能，且该法更有利于降低其生产成本和大规模生产.
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