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Journal of Materials Chemistry Vol - 6 Issue - 6

Journal of Materials Chemistry Vol - 6 Issue - 5

Journal of Materials Chemistry Vol - 6 Issue - 4

Journal of Materials Chemistry Vol - 6 Issue - 3

Journal of Materials Chemistry Vol - 6 Issue - 2

Journal of Materials Chemistry Vol -5

Journal of Materials Chemistry Vol -4

Journal of Materials Chemistry Vol -3

Amorphous and crystalline copper sulfides, CuS

Content Provider	Royal Society of Chemistry (RSC)
Author	Inoue, Motomichi Boggavarapu, Sajiv Grijalva, Heriberto Calvert, Paul
Copyright Year	1996
Abstract	Copper sulfides CuS have been synthesized by a reaction between [Cu(en)2]2+(en = ethylenediamine) and thiourea in alkaline solutions at different temperatures. The product obtained at 10 °C (CuS-10) was amorphous and showed semiconductive properties with an electrical conductivity of 0.1 S cm–1 at 298 K and 3.6 × 10–3 S cm–1 at 108 K, whereas the product at 30°C (CuS-30) was a crystalline CuS (covellite) that exhibited a metal-like temperature dependence with a conductivity of 92 S cm –1 at 304 K and 101 S cm–1 at 101 K. CuS-10 was changed to a crystalline CuS when annealed at 100-150°C. The resulting CuS had a higher crystallinity than that of CuS-30, and the electrical conductivity showed a metal-like temperature dependence: 27 S cm–1 at 299 K and 31 S cm –1 at 98 K. When the reactions were conducted with an immersed polymer film in the solution, CuS films were formed on the substrate surface. The CuS-30 film and the annealed CuS-10 film were electroconductive and transparent in the visible spectral region. The synthesis of amorphous CuS followed by thermal treatment is a new method for the fabrication of metal sulfide films of high quality.
Starting Page	1157
Ending Page	1160
Page Count	4
File Format	PDF
ISSN	09599428
Volume Number	6
Issue Number	7
Journal	Journal of Materials Chemistry
DOI	10.1039/JM9960601157
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ethylenediamine Thiourea Electrical resistivity and conductivity Covellite Polymer Sulfide
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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