Journal
THIN SOLID FILMS
Volume 582, Issue -, Pages 180-183Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2014.10.091
Keywords
Kesterite; Stannite; Solid solutions; Monograin powder
Categories
Funding
- Estonian Science Foundation [ETF9346, ETF9425, ETF8964]
- Estonian Ministery of Education and Research [IUT19-28, TK117T, AR10128, AR12128]
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Cu-1.85(CdxZn1-x)(1.1)SnS4.1 (0 <= x <= 1) solid solutions were synthesized in the form of monograin powders and characterized by X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL) and quantum efficiency (QE) measurements. From the XRD data the lattice parameters for all powders were calculated. The XRD peaks were shifted linearly to the lower angle side with increasing cadmium content and the splitting of (220) peak appeared for the sample x = 04. With increasing the value of x from 0 to OA, a linear shift of the A(1) Raman mode horn 338 cm(-1) to 332 cm(-1) a shift of the PL band horn 1.3 eV to 1.1 eV and the change of effective bandgap from 1.55 eV to 1.41 eV calculated from QE measurements were observed. Further increase in Cd content over x = 0.4 did not have a major impact to these parameters. We attributed this phenomenon to the phase transition from kesterite to stannite in the series of Cu-1.85(CdxZn1-x)(1.1)SnS4.1 (0 <= x <= 1) solid solutions. (C) 2014 Elsevier B.V. All rights reserved
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