Thin films of vanadium arsenide were deposited via the dual-source atmospheric pressure chemical vapour deposition reactions of VCl4 or VOCl3 with (BuAsH2)-Bu-t. Using the vanadium precursor VCl4, films were deposited at substrate temperatures of 550-600 degrees C, which were black-gold in appearance and were found to be metal-rich with high levels of chlorine incorporation. The use of VOCl3 as the vanadium source resulted in films being deposited between 450 and 600 degrees C and, unlike when using VCl4, were silver in appearance. The films deposited using VOCl3 demonstrated vanadium to arsenic ratios close to 1:1, and negligible chlorine incorporation. Films deposited using either vanadium precursor were identified as VAs using powder X-ray diffraction and possessed borderline metallic/semiconductor resistivities. (C) 2013 Published by Elsevier B.V.
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UCL, Dept Chem, Christopher Ingold Labs, 20 Gordon St, London WC1H 0AJ, England
UCL Energy Inst, Cent House,14 Upper Woburn Pl, London WC1H 0NN, EnglandUCL, Dept Chem, Christopher Ingold Labs, 20 Gordon St, London WC1H 0AJ, England
Warwick, Michael E. A.
Ridley, Ian
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RMIT Univ, Sch Property Construct & Project Management, GPO Box 2476, Melbourne, Vic 3001, AustraliaUCL, Dept Chem, Christopher Ingold Labs, 20 Gordon St, London WC1H 0AJ, England
Ridley, Ian
Binions, Russell
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Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England
Queen Mary Univ London, Mat Res Inst, Mile End Rd, London E1 4NS, EnglandUCL, Dept Chem, Christopher Ingold Labs, 20 Gordon St, London WC1H 0AJ, England