Structural and optical properties of sulfurized Cu2ZnSnS4 thin films from Cu-Zn-Sn alloy precursors

Title
Structural and optical properties of sulfurized Cu2ZnSnS4 thin films from Cu-Zn-Sn alloy precursors
Author(s)
김규호아말무하마드
Keywords
SOLAR-CELLS; CONSTANTS; THICKNESS; GROWTH
Issue Date
201302
Publisher
SPRINGER
Citation
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v.24, no.2, pp.559 - 566
Abstract
This study reports the preparation of Cu2ZnSnS4 (CZTS) thin films by magnetron sputtering deposition with a Cu-Zn-Sn ternary alloy target and sequential sulfurization. The effects of substrate temperatures on the structural, morphological, compositional as well as optical and electrical properties were characterized. The results showed the CZTS thin films prepared by sulfurization at substrate temperature of 570 A degrees C yielded secondary phases along with CZTS compound. The relatively good properties of CZTS thin film were obtained after sulfurization at substrate temperature of 550 A degrees C. This CZTS film showed compact structure with large grain size of 900 nm, direct optical band gap of 1.47 eV, optical absorption coefficient over 10(4) cm(-1), resistivity of 4.05 Omega cm, carrier concentration of 8.22 x 10(18) cm(-3), and mobility of 43.38 cm(2) V-1 S-1.
URI
http://hdl.handle.net/YU.REPOSITORY/26617http://dx.doi.org/10.1007/s10854-012-0858-7
ISSN
0957-4522
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공과대학 > 신소재공학부 > Articles
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