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Publication Type : Journal Article
Publisher : Elsevier
Source : Journal of alloys and compounds Volume 618 Pages 522-526, 2015
Url : https://www.sciencedirect.com/science/article/abs/pii/S092583881402057X
Campus : Coimbatore
School : School of Physical Sciences
Year : 2015
Abstract : Here we introduced a two-step reaction to synthesize highly crystalline CuIn(S1−xSex)2 (CuInSSe) microcrystals from CuInSe2 nanocrystals. CuInSSe micro particles can be obtained without toxic selenization or sulfurization process and the composition of sulfur and selenium can be easily controlled by varying the amount of precursor at different stages of the reactions. This synthetic route allows a technique that is simple and non-toxic together with the possibility of tuning the composition. XRD, HRTEM and SAED analysis of the final product confirmed the pure phase formation of CuInSSe. EDAX analysis shows the compositions of the final product matched with CuInSSe and the compositions of the product can tune by the reaction parameter. UV–Vis absorption spectra reveals a clear blue shift due to an increase in band gap with the increase of sulfur content. Initial photocurrent response suggests its possibility to be used as absorber materials in thin film solar cells.
Cite this Research Publication : Mengxi Wang, Sudip K Batabyal, Hui Min Lim, Zhenggang Li, Yeng Ming Lam, "Formation of CuIn (SxSe1− x) 2 microcrystals from CuInSe2 nanoparticles by two step solvothermal method", Journal of alloys and compounds Volume 618 Pages 522-526, 2015