Field emission investigations of RuO2-doped SnO2 wires

TitleField emission investigations of RuO2-doped SnO2 wires
Publication TypeJournal Article
Year of Publication2007
AuthorsBhise, AB, Late, DJ, Ramgir, NS, More, MA, Mulla, IS, Pillai, VK, Joag, DS
JournalApplied Surface Science
Volume253
Issue23
Pagination9159-9163
Date PublishedSEP
Type of ArticleArticle
ISSN0169-4332
Keywordsdoped semiconductor, field emission, field enhancement factor, RuO2, SnO2
Abstract

Field emission studies of a bunch and a single isolated RuO2:SnO2 wire have been performed. A current density of 5.73 x 10(4) A/cm(2) is drawn from the single wire emitter at an applied field of 8.46 x 10(4) V/mu m. Nonlinearity in the Fowler-Nordheim (F-N) plot has been observed and explained on the basis of electron emission from both the conduction and the valence bands of the semiconductor. The current stability recorded at the preset value of 1.5 LA is observed to be good. Overall the high emission current density, good stability and mechanically robust nature of the RuO2:SnO2 wires offer advantages as field emitters for many potential applications. (c) 2007 Elsevier B.V. All rights reserved.

DOI10.1016/j.apsusc.2007.05.058
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.15
Divison category: 
Physical and Materials Chemistry