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Title: Solvothermal crystal growth of CuSbQ{sub 2} (Q=S, Se) and the correlation between macroscopic morphology and microscopic structure

Journal Article · · Journal of Solid State Chemistry
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  1. Department of Chemistry and the Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, Suzhou 215123 (China)

A low temperature solvothermal method has been successfully used for preparation of two semiconductor compounds CuSbQ{sub 2} (Q=S(1), Se(2)) by the reactions of Cu, Sb and S(or Se) powders in 1,2-diaminopropane at 160 deg. C for 10 days. The crystal structure of 2 was determined first time using single crystal X-ray diffraction analyses. The structures of 1 and 2 are discussed in the view of covalent bonds and weak interactions. Double CuSbQ{sub 2} layers are assembled to a 3-D network structure by Cu...Sb and Q...Sb secondary bonds. In contrast with the isostructure of the two materials, the crystal morphology of them is quite different, brick-like crystals for CuSbS{sub 2} and plank-like crystals for CuSbSe{sub 2}. The phenomenon is related to their different inter-planar interactions. Semiconductor properties of the microcrystal samples are measured and the band gaps of 1 and 2 are 1.38 and 1.05 eV, respectively. - Graphical abstract: Two isostructural compounds, CuSbQ{sub 2} (Q=S, Se), display different morphologies in crystals, which is explained by comparing the strength of the interlayer interactions based on the crystal structure data.

OSTI ID:
21212187
Journal Information:
Journal of Solid State Chemistry, Vol. 182, Issue 2; Other Information: DOI: 10.1016/j.jssc.2008.10.025; PII: S0022-4596(08)00538-0; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
Country of Publication:
United States
Language:
English