The effect of binary sulfides precursors with different value states on CZTS thin films
The effect of binary sulfides precursors with different value states on CZTS thin films
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不同值态二元硫化物前驱体对CZTS薄膜的影响
DOI:
10.1016/j.ceramint.2018.07.057
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发表时间:
2018-10
期刊:
影响因子:
--
通讯作者:
ZhiGao Huang
中科院分区:
文献类型:
--
作者:
GuiLin Chen;WeiHuang Wang;PinYang Lin;HuiLing Cai;BinWen Chen;XiaoJuan Huang;JianMin Zhang;ShuiYuan Chen;ZhiGao Huang
In this work, Cu2ZnSnS4(CZTS) thin film was successfully prepared from four types of mixed binary sulfides nanoparticles under inert Ar atmosphere. A comparison study was conducted to explore the effect of binary sulfides with different value states on the CZTS thin films. Through X-ray diffraction (XRD), Raman and scanning electron microscopy (SEM), the pure CZTS phase can be obtained independent of the value states. However, distinguished crystallinity and morphology of CZTS were observed by using binary precursor with different value states. The grain size up to 1 µm was achieved by annealing (Cu2S+ZnS+SnS2) precursor without additional sulfur atmosphere, suggesting that value state of binary sulfides precursor play an important role in CZTS growth. This result also agrees well with our theoretical prediction. Finally, appropriate ratio of Cu/Zn/Sn was evidenced to yield an enhancement in power conversion efficiency from 0.09% (stoichiometric ratio) to 0.55% (Cu-poor, Zn-rich).
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