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Quaternary Cu2ZnSnSe4 single crystalline nanosheets have been synthesized in a controlled manner with a convenient solvothermal approach by simply modifying the reaction conditions. The presence of ethylenediamine (En) plays a key role in the preparation of Cu2ZnSnSe4 nanosheets while the thickness of the as-prepared Cu2ZnSnSe4 nanosheets is strongly dependent on the amount of En. The formation mechanism of Cu2ZnSnSe4 nanosheets was discussed. The products were characterized using X-ray powder diffraction, Raman, energy dispersive X-ray spectrometry, transmission electron microscopy, scanning electron microscopy and UV-Vis spectrophotometry.
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Shi et al. (2011) studied this question.
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