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Negative differential conductance observed in electron field emission from band gap modulated amorphous-carbon nanolayers

Tsang, WM, Henley, SJ, Stolojan, V and Silva, SRP (2006) Negative differential conductance observed in electron field emission from band gap modulated amorphous-carbon nanolayers APPLIED PHYSICS LETTERS, 89 (19). ? - ?. ISSN 0003-6951

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Abstract

Amorphous-carbon (a-C)-based quantum confined structures were synthesized by pulsed laser deposition. In these structures, electrons are confined in a few nanometer thick sp(2) rich a-C layer, which is bound by the vacuum barrier and a 3 nm thick sp(3) rich a-C base layer. In these structures anomalous field emission properties, including negative differential conductance and repeatable switching effects, are observed when compared to control samples. These properties will be discussed in terms of resonant tunneling and are of great interest in the generation and amplification of high-frequency signals for vacuum microelectronics and fast switching devices.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Applied, Physics, CATHODES
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:07
Last Modified: 23 Sep 2013 18:26
URI: http://epubs.surrey.ac.uk/id/eprint/224

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