Solvothermal synthesis and characterization of quaternary Cu₂ZnSnSe₄ particles

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• 作者：Yan-Fang Du ; Wen-Hui Zhou ; ^{zhouwh@henu.edu.cn} ; Yan-Li Zhou ; Peng-Wei Li ; Jun-Qi Fan ; Jing-Jing He ; Si-Xin Wu ; ^{wusixin@henu.edu.cn}
• 关键词：Cu2ZnSnSe4 ; CZTSe ; Solvothermal synthesis ; Solar cells
• 刊名：Materials Science in Semiconductor Processing
• 出版年：2012
• 期刊代码：65_13698001
• 类别：ms
• 出版时间：April, 2012
• 卷：15
• 期：2
• 页码：214-217
• 文件大小：424 K

摘要

Quaternary chalcogenide Cu₂ZnSnSe₄ (CZTSe) particles for low cost thin film solar cells were synthesized utilizing a facile solvothermal method. Depending upon different solvents and temperatures, different morphologies and desired chemical composition of CZTSe particles were obtained. The as-obtained particles were characterized by means of X-ray diffraction (XRD), field emission scanning electron microscopy, transmission electron microscopy, selected area electron diffraction pattern, energy dispersive X-ray spectrometry and UV-visible (UV-vis) absorption spectra. XRD results revealed that the temperature of 250 掳C is suitable for the solvothermal synthesis of CZTSe. UV-vis absorption spectra showed the as-obtained CZTSe particles had strong absorption of visible light and their energy band gaps were tunable; these findings are relevant to the size and morphology of CZTSe particles and are of interest for solar cells.