期刊
THIN SOLID FILMS
卷 535, 期 -, 页码 39-43出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2012.11.073
关键词
Cu2ZnSnS4 nanocrystals; Hydrothermal method; Solar cell
We introduce a hydrothermal method for synthesizing ultrafine earth abundant Cu2ZnSnS4 (CZTS) nanocrystals with an average size of 5-6 nm using simple Cu(II), Zn(II), Sn(II) inorganic salt and thiourea as precursor. X-ray diffraction, Raman spectrum and transmission electron microscopy studies indicate that CZTS nanocrystals with pure kesterite structure have been synthesized at temperature as low as 180 degrees C. The band-gap energy determined from the absorbance spectrum is 1.47 eV, suggesting that as-synthesized CZTS nanocrystals are very suitable for photovoltaic applications. (C) 2012 Elsevier B.V. All rights reserved.
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