摘要
为解决硫化过程中Sn元素损失的问题以及减少MoS;的厚度,采用磁控溅射技术,在基于钼的钠钙玻璃衬底上采用双周期溅射的方法,以ZnO/SnO_(2)/Cu的顺序制备了含氧的Cu-Zn-Sn预制层。结果表明:SnO_(2)以及ZnO的使用很好的抑制了Sn元素的损失以及MoS_(2)层的形成,而且在590℃的硫化温度下能制备出表面平整、晶粒致密、晶体结构较好的单相Cu_(2)ZnSnS_(4)(CZTS)吸收层薄膜。最后,制备出结构完整的CZTS薄膜太阳电池,在590℃硫化制备的CZTS薄膜太阳电池效率最高,其开路电压为590 mV,短路电流密度为22.09 mA/cm^(2),填充因子为39.28%,光电转换效率达到5.12%,为今后制备高效CZTS薄膜太阳电池起到了推动作用。
In order to solve a problem of Sn-loss and reduce the thickness of MoS;during the sulfurization process,the oxygen containing Cu-Zn-Sn precursor thin films were prepared on Mo-coated soda lime glasses via magnetron sputtering ZnO/SnO_(2)/Cu.The results show that the Sn-loss and the formation of MoS_(2)are well inhibited by the utilization of SnO_(2)and ZnO.The single-phase CZTS absorbed thin films with the smooth surface,dense grains and good crystal structure can be prepared at 590℃.Also,the CZTS solar cells from oxygen containing precursors annealed at 590℃have an optimum power conversion efficiency(PCE)of5.12%with an open circuit voltage of 590 mV,a short circuit current density of 22.09 mA/cm^(2)and a fill factor of 39.28%.
作者
李新毓
张道永
李祥
李秋莲
刘信
王书荣
LI Xinyu;ZHANG Daoyong;LI Xiang;LI Qiulian;LIU Xin;WANG Shurong(Key Laboratory of Rural Energy Engineering in Yunnan Province,Yunnan Normal University,Kunming 650500,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2022年第5期1257-1262,共6页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(61941401)资助项目。
关键词
铜锌锡硫
薄膜太阳电池
磁控溅射
二氧化锡靶
硫化工艺
copper-zinc-tin-sulfur
thin-film solar cells
magnetron sputtering
SnO_(2)target
sulfurization process
