Hydrothermal preparation of CuGaS2 crystallites with different morphologies |
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| Institution: | 1. College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China;3. Xi’an Thermal Power Research Institute Co., Ltd, Suzhou Branch, Suzhou 215153, China;4. Department of Light Industry Consumption Goods, Shanghai Customs District, Shanghai 200135, China;1. Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei 230031, PR China;2. University of Science and Technology of China, Hefei 230026, PR China;1. School of Physics and Electronics, Henan University, Kaifeng 475004, China;2. International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, China;3. Institute of Micro/Nano Photonic Materials and Applications, Henan University, China;1. School of Physics, Madurai Kamaraj University, Madurai, Tamil Nadu, India;2. Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, Japan;3. Functional Material Division, Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, India;4. Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, India;5. Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL, United States;6. Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur, India;7. Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Jais, Uttar Pradesh, India;8. SPECIFIC, Materials Research Centre, Faculty of Science and Engineering, Swansea University, Swansea, UK |
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| Abstract: | The CuGaS2 crystallites with different morphologies were prepared at 160 °C through hydrothermal process by using CuCl, GaCl3 solution, and thiourea as source materials. The samples were characterized by means of X-ray powder diffraction, element analysis, transmission electron microscopy, and photoluminescence (PL). In present route, as-prepared CuGaS2 crystallites displayed spherical and whisker-like nanoparticles and snowflake-like micrometer particles. Room temperature PL spectrum of the snowflake-like crystallites exhibits a weak emission band at 540 nm and a broad strong emission band at 735 nm. The role that the reaction media played in the morphologies of the CuGaS2 crystallites was investigated, and a possible reaction mechanism was proposed. |
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