Synthesis and characterization of a novel quaternary chalcogenide KBiCu₂S₃

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• 作者：Ganghua Zhang ; Bowen Zhang ; Haijie Chen ; Xian Zhang ; Chong Zheng ; Jianhua Lin ; Fuqiang Huang
• 关键词：Quaternary chalcogenide ; Hydrothermal approach ; Semiconducting ; Photoelectric response
• 刊名：Journal of Alloys and Compounds
• 出版年：5 April, 2014
• 年：2014
• 卷：591
• 期：Complete
• 页码：6-10
• 全文大小：1139 K

文摘

A novel quaternary chalcogenide KBiCu₂S₃ has been synthesized via a facile hydrothermal approach. The critical influencing factors for the crystal growth were discussed in detail. The magnetic studies revealed a paramagnetic nature of KBiCu₂S₃. The temperature dependence of the resistivity is semiconducting for this compound and explained well by the variable range hopping (VRH) rather than the adiabatic small polaron hopping (SPH) mechanism. The band gap of the compound is 1.29 eV. Its photoelectric response was also characterized, which demonstrated the potential for applications in photovoltaic devices.