• Bulletin of the Korean Chemical Society
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• 제24권2호
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• pp.253-255
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• 2003

• Bulletin of the Korean Chemical Society
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• 제35권1호
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• pp.309-312
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• 2014

• Bulletin of the Korean Chemical Society
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• 제24권9호
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• pp.1354-1356
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• 2003

• Bulletin of the Korean Chemical Society
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• 제30권12호
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• pp.3105-3106
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• 2009

• Bulletin of the Korean Chemical Society
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• 제33권7호
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• pp.2129-2130
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• 2012

• Advances in nano research
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• 제5권3호
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• pp.203-214
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• 2017

In this study we present the reaction mechanism of $Cu_2ZnSnSe_4$ (CZTSe) nanoparticles synthesized by microwave-assisted chemical synthesis. We performed reactions every 10 minutes in order to identify different phases during quaternary CZTSe formation. The powder samples were analyzed by x-ray diffraction (XRD), Raman spectroscopy, energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The results showed that in the first minutes copper phases are predominant, then copper and tin secondary phases react to form ternary phase. The quaternary phase is formed at 50 minutes while ternary and secondary phases are consumed. At 60 minutes pure quaternary CZTSe phase is present. After 60 minutes the quaternary phase decomposes in the previous ternary and secondary phases, which indicates that 60 minutes is ideal reaction time. The EDS analysis of pure quaternary nanocrystals (CZTSe) showed stoichiometric relations similar to the reported research in the literature, which falls in the range of Cu/(Zn+Sn): 0.8-1.0, Zn/Sn: 1.0-1.20. In conclusion, the evolution pathway of CZTSe synthesized by this novel method is similar to other synthesis methods reported before. Nanoparticles synthesized in this study present desirable properties in order to use them in solar cell and photoelectrochemical cell applications.

• Bulletin of the Korean Chemical Society
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• 제31권8호
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• pp.2395-2398
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• 2010

• Bulletin of the Korean Chemical Society
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• 제32권5호
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• pp.1773-1776
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• 2011

• Bulletin of the Korean Chemical Society
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• 제25권8호
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• pp.1117-1118
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• 2004

• Journal of the Korean Ceramic Society
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• 제49권2호
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• pp.151-154
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• 2012

Flower-like and plate-like CuO nanopowder has been successfully synthesized using a facile microwave-assisted synthetic route. The morphology and size of the final products strongly depended on microwave power. The phase, structures and morphologies of the as-prepared products were investigated in detail by BET surface area analysis, X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM). In addition, the chemical oxygen demand of polluted lake water was employed for characterization of these new photocatalysts. The results showed correlations between the morphology of CuO micro-crystals and their catalytic properties.