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Title: Controllable synthesis of stoichiometric Cu{sub 2}ZnSnS{sub 4} nanoparticles by solvothermal method and its properties

This work reports the solvothermal synthesis of earth abundant Cu{sub 2}ZnSnS{sub 4} (CZTS) nanoparticles and their structural, morphological, chemical and optical properties. The X-ray diffraction and Raman spectroscopy confirmed the formation of single phase CZTS with kesterite crystal structure. Transmission electron microscopy showed the formation of well-dispersed CZTS nanoparticles having a size ∼ 6 to 12 nm. The stoichiometric ratio of relative elemental of Cu: Zn: Sn: S is confirmed from the energy dispersive spectrometer. The optical absorption studies revealed that CZTS nanoparticles had an optical band gap of 1.52 eV, which is the optimal for the photovoltaic applications. The surfactant HMTA plays a key role in the synthesis of CZTS nanoparticles. Finally, a possible reaction mechanism for the formation of CZTS nanoparticles is proposed.
Authors:
 [1] ;  [2] ;  [3] ; ;  [1]
  1. Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500575 (Korea, Republic of)
  2. (M.S.), 416209 (India)
  3. Department of Science, Institute of Civil and Rural Engineering, Gargoti, Dist-Kolhapur, (M.S.), 416209 (India)
Publication Date:
OSTI Identifier:
22490255
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; COPPER COMPOUNDS; CRYSTAL STRUCTURE; EV RANGE; NANOPARTICLES; OPTICAL PROPERTIES; PHOTOVOLTAIC EFFECT; RAMAN SPECTROSCOPY; REACTION KINETICS; STOICHIOMETRY; SURFACTANTS; SYNTHESIS; TIN SULFIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; ZINC COMPOUNDS