Influence of co-ordinating and non-coordinating solvents in structural and morphological properties of Cu₂ZnSnS₄ (CZTS) nanoparticles

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• 作者：Ananthakumar S.^a ; Ram Kumar J.^a ; ^b ; Moorthy Babu S.^a ; ^{babu@annauniv.edu}
• 关键词：colloidal method ; kesterites ; solar cells ; Cu2ZnSnS4 nanoparticles
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：99-105
• 全文大小：1647 K
• 卷排序：130

文摘

Copper zinc tin sulphide Cu2ZnSnS4 (CZTS) nanoparticles were synthesized using different solvents including 1-octadecene (1-ODE), oleylamine (OLAM), oleic acid (OLA) and 1-dodecanethiol (1-DDT). Pure oleylamine based synthesis of nanoparticles results formation of nearly spherical like particles, while the pure oleic acid and mixture of oleylamine and oleic acid lead to the formation of hierarchical microspheres and nanodisc like structures. In addition to different morphologies, 1-dodecanethiol (1-DDT) based synthesis of Cu2ZnSnS4 nanoparticles posses wurtzite structure while rest of them exhibit pure kesterite phase. Further, the low volume of oleylamine in the reaction system motivates formation of sheet like structure. The mechanism involved in this structural direction of the nanoparticles into various morphologies was discussed. The synthesized CZTS nanoparticles were characterized using XRD, SEM, TEM and ATR-FTIR.