Journal
MATERIALS LETTERS
Volume 172, Issue -, Pages 68-71Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.02.088
Keywords
CTS; Co-spray; Thin films; Optical-electrical properties; Solar energy Materials
Funding
- Knowledge Innovation Program of the Chinese Academy of Sciences [Y2K4401DG0]
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In this work,a simple and low cost route is proposed to fabricate pure Cu2SnS3 and Cu2XSnS4 (X:Cu,Mg) thin films.The Cu2XSnS4 (X:Cu,Mg) film was synthesized by a novel dual source ultrasonic co-spray method for the first time.The structural, morphological, optical and electrical properties of the films were well investigated.All the films show different structure,satisfactory morphology and p-type conductivity with a minimum resistivity of 4.82 x 10(-3) Omega cm for Cu2CuSnS4. Optical properties suggest the samples have band gap values of 1.4 eV, 1.65 eV and 1.76 eV for Cu2SnS3,Cu2CuSnS4 and Cu2MgSnS4 respectively, which is the optimal value for high efficient single or tandom thin film solar cell. (C) 2016 Elsevier B.V. All rights reserved.
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