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Nanoscale transformations in metastable, amorphous, silicon-rich silica

Mehonic, A; Buckwell, M; Montesi, L; Munde, MS; Gao, D; Hudziak, S; Chater, RJ; ... Kenyon, AJ; + view all (2016) Nanoscale transformations in metastable, amorphous, silicon-rich silica. Advanced Materials , 28 (34) pp. 7486-7493. 10.1002/adma.201601208. Green open access

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Abstract

Electrically biasing thin films of amorphous, substoichiometric silicon oxide drives surprisingly large structural changes, apparent as density variations, oxygen movement, and ultimately, emission of superoxide ions. Results from this fundamental study are directly relevant to materials that are increasingly used in a range of technologies, and demonstrate a surprising level of field-driven local reordering of a random oxide network.

Type: Article
Title: Nanoscale transformations in metastable, amorphous, silicon-rich silica
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/adma.201601208
Publisher version: http://dx.doi.org/10.1002/adma.201601208
Language: English
Additional information: © 2016 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: Amorphous oxides, electrical stress, oxide nanostructure, resistive switching
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1501082
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