Amines free environmentally friendly rapid synthesis of Cu2SnS3 nanoparticles

被引:32
作者
Lokhande, A. C. [1 ]
Pawar, S. A. [1 ]
Jo, Eunjin [1 ]
He, Mingrui [1 ]
Shelke, A. [2 ]
Lokhande, C. D. [2 ]
Kim, Jin Hyeok [1 ]
机构
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, Optoelect Convergence Res Ctr, Gwangju 500757, South Korea
[2] Shivaji Univ, Dept Phys, Thin Film Phys Lab, Kolhapur 416004, MS, India
基金
新加坡国家研究基金会;
关键词
Cu2SnS3; Nanoparticles; Band gap; Hot injection; Sulfur source; IONIC LAYER ADSORPTION; SOLAR-CELL; THIN-FILMS; OPTICAL-PROPERTIES; CTS NANOPARTICLES; NANOCRYSTALS;
D O I
10.1016/j.optmat.2016.03.032
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Cubic and tetragonal structured Cu2SnS3 (CTS) nanoparticles are rapidly synthesized within a short reaction time of 5 min using low cost amine free octadecene (ODE) solvent by hot injection technique. The effects of precursor concentration, sulfur source and reaction time on the CTS nanoparticle synthesis are studied. The crystal structure, size, phase purity, atomic composition, oxidation state and optical properties of these nanoparticles are studied in detail by X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman, energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) and UV-visible spectroscopy techniques. Spherical shaped particles in the size range of 25-30 nm are obtained with atomic composition in close agreement with the stoichiometry of Cu2SnS3. The reaction mechanism of CTS nanoparticle formation is proposed. The synthesized cubic and tetragonal structured CTS nanoparticles exhibit optimal band gaps of 1.23 eV and 1.45 eV, respectively, suitable for use in photovoltaic applications. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:268 / 278
页数:11
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