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Self-organised nanocomposites from porous silicon Evidence of the relationship between nano-scale structure and its electronic properties

By P. Zolotarenko, S. Zankovych, Y. Boiko and Cambridge (United Kingdom) Riecansky (V.E.) Technical Translations

Abstract

The composition study of the oxidized PS layer after Al-film coating has been shown by STM, STS (with tunnel I-V curves) and IR-spectroscopy to be the self-organized Si nanocrystallite. Si_xO_y:Si_zO_yAl or Si-nanocrystallite: Si_xO_y nanocomposites. The electronic properties (tunnel current, capacity, differential capacity relaxation) are determined by the presence of Si-nanocrystallites with size of 2,5-4 nm, and band gap E=2,4-2,8 eV surrounded by the matrix consisting of SiO, SiO_2, Si_2O_3 and Si_xO_yAl nanooxides. (author)Translated from Russian (Presented at Advanced Materials '99, Kiev)Available from British Library Document Supply Centre-DSC:9023.190(9916)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

Topics: 20K - Solid-state physics, 11D - Composites, SILICON, COMPOSITE MATERIALS, POROUS MATERIALS, SILICON OXIDES, ALUMINIUM COMPOUNDS, ELECTRICAL PROPERTIES, CRYSTAL STRUCTURE, GRAIN SIZE
Year: 2001
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Provided by: OpenGrey Repository
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