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Solvothermal Preparation and Effects of Mixed Solvent on the Properties of Copper Indium Diselenide Nanoalloys
Author(s) -
Lin YuChen,
Liu WangLin,
Chu HsiaoChun,
Chen TsairRong,
Hsu ShihChieh,
Chen ChingHsiang
Publication year - 2014
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201300495
Subject(s) - chemistry , indium , band gap , crystallinity , scanning electron microscope , raman spectroscopy , ethylenediamine , energy dispersive x ray spectroscopy , tetragonal crystal system , solvothermal synthesis , crystallite , solvent , analytical chemistry (journal) , chemical engineering , copper , nuclear chemistry , crystallography , inorganic chemistry , crystal structure , organic chemistry , materials science , optics , composite material , physics , optoelectronics , engineering
We have developed a simple solvothermal method by using solvent mixtures of ethylenediamine with ethanol and deionized water to produce the CuInSe 2 nanoalloys. The phase structure, morphology, elemental composition and optical band gap (E g ) of synthesized the CuInSe 2 nanoalloys were characterized by Raman spectroscopy, X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X‐ray spectroscopy (EDS) and zeta potential particle sizer measurements. The factors affecting product purity in the mixed solvent are also discussed. The results showed that CuInSe 2 nanoalloys with a chalcopyrite tetragonal structure were produced by adjusting the ratio of ethylenediamine to ethanol (1:2.33 by volume) and their corresponding energy band gap was found to be 1.27 eV. In addition, we prepared and coated the CuInSe 2 ink on the Mo substrate by the doctor blade method to produce a compact thin film. The crystallinity and the morphology of these polycrystalline CuInSe 2 films were characterized.