Synthesis of Cu₂ZnSnS₄ Solar Cell Absorber Material by Sol-gel Method

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• 作者：Suresh Kumar ; ^{sureshkumarnara@gmail.com} ; Bharath Kasubosula ; Mihkel Loorits ; Jaan Raudoja ; Valdek Mikli ; Mare Altosaar ; Maarja Grossberg
• 关键词：CZTS ; copper zinc tin sulphide ; sol-gel ; thin film ; heat treatment
• 刊名：Energy Procedia
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：102
• 期：Complete
• 页码：102-109
• 全文大小：1263 K
• 卷排序：102

文摘

Cu2ZnSnS4 thin films on Mo and/or ITO covered glass substrates were prepared by dip coating method using methanol as solvent for CuCl2, ZnCl2, SnCl2 and CH4N2S as precursors. The influence of pre-annealing and post annealing conditions as well as the influence of used substrate on the morphology, phase composition and elemental composition of the resulting films was studied. It was found that thin films deposited onto Mo and ITO substrates and pre-annealed at 240oC in nitrogen atmosphere and post heated at 550oC showed Raman dominating peak at 338 cm-1 characteristic to Cu2ZnSnS4. These films were continuous, with good crystallinity and they had near-stoichiometric composition.