低成本WS_2染料敏化电池对电极的低温制备  

Low temperature preparation of low cost tungsten disulfide counter electrodes for dye-sensitized solar cells

作　　者：王立[1,2] 王燕燕[1,3] 李涛[1,3] 李胜军[1,3] 

机构地区：[1]河南省光伏材料重点实验室,河南开封475004 [2]河南大学欧亚国际学院,河南开封475001 [3]河南大学物理与电子学院,河南开封475004

出　　处：《化学研究》2016年第2期219-223,共5页Chemical Research

基　　金：国家自然科学基金(51304062;21403056和U1404202)

摘　　要：采用简单的方法,在低温条件下制作了高效的WS2对电极,并用X射线衍射仪(XRD)、显微共焦拉曼光谱仪(Raman)和扫描电子显微镜(SEM)对材料的物理特性进行了表征.WS_2对电极的电化学催化活性用循环伏安(CV)和光电流密度-电压特性(I-V)来评价.利用所制备WS_2对电极组装的染料敏化太阳能电池的光电转换效率为5.48%略低于Pt对电极(6.6%).研究表明WS_2是一种很有前景的染料敏化太阳能电池Pt对电极替代材料.Tungsten disulfide（WS2）counter electrode was synthesized by a facile method and characterized with X-ray diffraction,field emission scanning electron microscope and laser Raman spectrum.The WS2-based counter electrodes for DSSCs were prepared at low temperature.The electrochemical catalytic activity of the WS2 counter electrodes was investigated using cyclic voltammetry（CV）and electrochemical impedance spectroscopy（EIS）.The DSSCs assembled with carbon-coated WS2 counter electrodes showed a photovoltaic conversion efficiency of5.48%,which was comparable to that of Pt electrode（6.6%）.It indicates that WS2 was a good candidate to replace the Pt counter electrodes in DSSCs.

关 键 词：染料敏化电池 对电极 WS2 WS2对电极 

分 类 号：TM914.42[电气工程—电力电子与电力传动]