中南大学学报（自然科学版）2017，Vol.48Issue(4)：917-924,8.DOI:10.11817/j.issn.1672-7207.2017.04.010
电沉积合金预制层后退火制备铜锌锡硫薄膜及其光伏特性
Preparation and photovoltaic characterization of Cu2ZnSnS4 thin films fabricated by electrodeposition of alloy precursor followed by annealling
摘要
Abstract
Cu2ZnSnS4 (CZTS) thin films for the absorber of thin film solar cells were prepared by annealling of electrodeposited copper zinc tin alloy. CZTS films were characterized by energy dispersive X-ray spectroscopy, scanning electron microscopy, X-ray diffraction, Raman scttering and photoelectrochemical measurement. The results show that with the increase of molar ratio of n(Cu)/n(Zn+Sn), FWHM of (112) peak increases firstly and then decreases. CZTS thin film with the molar ratios of n(Cu)/n(Zn+Sn)=0.83 and n(Zn)/n(Sn)=1.31 has the optimal performance. The second phases exists in Cu-poor/Zn-poor, Cu-poor/Zn-rich and Cu-rich/Zn-rich CZTS thin films are SnS2, ZnS and Cu-S, respectively. The second phase has significant influence on photoelectrochemical property of CZTS thin films, Cu-poor/Zn-rich CZTS thin films have stable and superior photo-current density (the maximum is 0.6 mA/cm2).Based on optimal composition, the solar cell fabricated with the CZTS thin film shows conversion efficiency of 3.27%.关键词
电沉积/铜锌锡硫/光电化学/太阳电池Key words
electrodeposition/Cu2ZnSnS4 (CZTS)/photoelectrochemical/solar cell分类
数理科学引用本文复制引用
杨佳,李轶,张坤,袁腾飞,蒋良兴,刘芳洋,赖延清,李劼..电沉积合金预制层后退火制备铜锌锡硫薄膜及其光伏特性[J].中南大学学报（自然科学版）,2017,48(4):917-924,8.基金项目
国家自然科学基金资助项目(51272292,51222403) （51272292,51222403）
中南大学基础研究基金资助项目(2013zzts027) (Projects(51272292, 51222403) supported by the National Natural Science Foundation of China （2013zzts027）
Project(2013zzts027) supported by the Fundamental Research Funds for the Central South University) （2013zzts027）
