Istituto dei materiali per l'elettronica ed il magnetismo     
Calestani D., Zha M., Zappettini A., Lazzarini L., Zanotti L. In-catalyzed growth of high-purity indium oxide nanowires. In: Chemical Physics Letters, vol. 445 (4-6) pp. 251 - 254. Elsevier, 2007.
Indium oxide (In2O3) nanowires have been recently synthetized and interesting properties and applications in gas-sensors and optoelectronic fields have been suggested. In order to reduce as much as possible the influence of undesired dopants and/or impurities on the observed properties, In2O3 nanowires have been grown without the use of catalysts, directly from metallic indium by a vapor transport technique and a controlled oxidation with oxygen-argon mixtures. Depending on the growth conditions (temperature, vapor pressure, oxygen concentration, etc.) different results have been achieved and it has been observed that a 'proper' In condensation on the substrates may enhance the nanowires growth.
URL: http://www.elsevier.com/locate/cplett
DOI: 10.1016/j.cplett.2007.07.089
Subject nanostructures
81.10.Bk Growth from vapor
81.16.Dn Self-assembly
81.05.Je Ceramics and refractories
78.55.-m Photoluminescence, properties and materials
68.37.Hk Scanning electron microscopy

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