Structural and compositional properties of CZTS thin films formed by rapid thermal annealing of electrodeposited layers

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• 作者：J. Lehner ; M. Ganchev ; M. Loorits ; N. Revathi ; T. Raadik ; J. Raudoja ; M. Grossberg ; E. Mellikov ; O. Volobujeva
• 关键词：A1. Surface structure ; B1. Metals ; alloys ; B2. Semiconducting quaternary alloys ; B3. Solar cells
• 刊名：Journal of Crystal Growth
• 出版年：2013
• 出版时间：1 October, 2013
• 年：2013
• 卷：380
• 期：Complete
• 页码：236-240
• 全文大小：1278 K

文摘

In this work Cu₂ZnSnS₄ (CZTS) thin films were formed by rapid thermal annealing (RTA) of sequentially electrodeposited Cu-Zn and Sn films in 5 % H₂S containing atmosphere. Six different thermal profiles were used in the experiments. In three of these, the temperature ramping up was varied, while the variable in the other three profiles was the cooling down rate. The optimising parameters for RTA of electrodeposited films were found and annealed films were characterised by X-ray diffraction (XRD), micro-Raman spectroscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM+EDS). The material parameters such as lattice strain and crystallite size were also determined and the influence of annealing temperature and heating rate on these parameters was discussed.The pathway of MoS₂ formation was investigated.