丝网印刷法制备高催化活性对电极

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，乩铂粒子分布更加均匀．电化学阻抗图谱、塔苛尔极化曲线和循环伏...

Full description

Saved in:
Bibliographic Details
Published in催化学报 Vol. 35; no. 2; pp. 219 - 226
Main Author 赵春雨 史彦涛 钟志勇 马廷丽
Format Journal Article
LanguageChinese
Published 大连理工大学化学学院精细化工国家重点实验室,辽宁大连,116024%营口奥匹维特新能源科技有限公司,辽宁营口,115003%大连理工大学化学学院精细化工国家重点实验室,辽宁大连116024 2014
营口奥匹维特新能源科技有限公司,辽宁营口115003
Subjects
均匀性
对电极
染料敏化太阳能电池
简易可摔
附着力
Adhesion uniformity
Dye-sensitized solar cell
对电极
染料敏化太阳能电池
Controllable
简易可控
Counter electrode
均匀性
附着力
Online AccessGet full text
ISSN0253-9837
1872-2067
DOI10.1016/S1872-2067(12)60737-2

Cover

More Information
Summary: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，乩铂粒子分布更加均匀．电化学阻抗图谱、塔苛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，且陔法更有利于降低其生产成本和大规模生产．
Bibliography:Counter electrodes （CEs） for dye-sensitized solar cells （DSCs） are important for collecting electrons and catalyzing the iodide/tri-iodide reaction. Pt CEs are commonly prepared by magnetron sputtering, which is expensive and requires vacuum conditions. Incorporating the low cost surfactant Span-85 improved the adhesion between the Pt particles and conductive substrate, and allowed Pt-based CEs to be screen-printed. The screen-printed CE was compared with those prepared by dip-coating and spin-coating. Photoelectric conversion efficiencies of 7.30%, 6.96% and 7.03% were achieved for DSCs containing screen-printed, dip-coated and spin-coated CEs, respectively. Optical transmittance measurements, scanning electron microscopy, and film adhesion tests results showed that the surfactant improved film adhesion and increased transmittance, and the screen-printed CEs exhibited comparable transmittance to the dip-coated CEs. Screen-printing resulted in Pt particles being more uniformly distributed on the substrate, wh
ISSN:0253-9837
1872-2067
DOI:10.1016/S1872-2067(12)60737-2