Synthesis and structure of La14V6CuO36.5: a transparent Cu(I) vanadate containing [OCuO]3- sticks

Gopalakrishnan, J. ; Gonen, Z. Serpil ; Chang, K. S. ; Takeuchi, Ichiro ; Mandal, T. K. ; Eichhorn, Bryan W. ; Fettinger, James C. ; Greene, Richard L. (2002) Synthesis and structure of La14V6CuO36.5: a transparent Cu(I) vanadate containing [OCuO]3- sticks Journal of Materials Chemistry, 2002 (12). pp. 3839-3842. ISSN 0959-9428

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Official URL: http://pubs.rsc.org/en/content/articlelanding/2002...

Related URL: http://dx.doi.org/10.1039/B203257K

Abstract

The title compound, La14V6CuO36.5, was prepared from a stoichiometric mixture of La2O3, V2O5, and CuO at 1050-1080 ° C. The compound forms transparent, pale green crystals and was characterized by wavelength dispersive spectroscopy and single crystal X-ray diffraction. The structure contains isolated VO43- tetrahedra and [OCuO]3- sticks dispersed in a lanthanum oxide network. Films of La14V6CuO36.5 were grown on R-plane sapphire by using pulsed laser deposition. Rutherford backscattering spectroscopic and X-ray diffraction analyses of the films showed oriented growth of the title phase, a ~ 5 eV optical band gap and n-type conductivity. The compound is an example of a transparent copper(I) oxide.

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