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Synthesis and Characterization of CuIn(S x Se1–x )2 Nanocrystals

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Abstract:

A series of nanocrystalline CuIn(SxSe1–x)2 (x = 0.1, 0.25, 0.4) were one-step synthesized by solvothermal method at 220 °C for 10 hours. In this process, SC(NH2)2 was adopted as S source which can release active S2– to mix with Se2– in ethylenediamine solvent and result in less reaction time. Powder X-ray diffraction (XRD) pattern, transmission electron microscope (TEM) image and the electron diffraction pattern indicate that the chalcopyrite compounds of x = 0.25 is a pure tetragonal phase with an average diameter of 45 nm and the nature was single crystal. The composition of CuIn(S x Se1–x)2 x = 0.25 nanoparticles investigated by energy dispersive spectroscopy (EDS) was Cu1.25In1.0S0.54Se1.47. Furthermore, the XRD patterns also reveal that phaseseparation phenomenon occurred when x = 0.4 for CuIn(S x Se1–x )2 nanocrystals.

Keywords: CISS; NANOCRYSTALLINE; SINGLE CRYSTAL; SOLVOTHERMAL

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/asl.2011.1907

Publication date: November 1, 2011

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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