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Influence of silver incorporation on the structural and electrical properties of diamond-like carbon thin films

Dwivedi, N, Kumar, S, Tripathi, RK, Dalai, MK, Malik, HK and Carey, JD (2013) Influence of silver incorporation on the structural and electrical properties of diamond-like carbon thin films ACS Applied Materials and Interfaces, 5 (7). pp. 2725-2732.

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Abstract

A simple approach is proposed for obtaining low threshold field electron emission from large area diamond-like carbon (DLC) thin films by sandwiching either Ag dots or a thin Ag layer between DLC and nitrogen-containing DLC films. The introduction of silver and nitrogen is found to reduce the threshold field for emission to under 6 V/μm representing a near 46% reduction when compared with unmodified films. The reduction in the threshold field is correlated with the morphology, microstructure, interface, and bonding environment of the films. We find modifications to the structure of the DLC films through promotion of metal-induced sp bonding and the introduction of surface asperities, which significantly reduce the value of the threshold field. This can lead to the next-generation, large-area simple and inexpensive field emission devices. © 2013 American Chemical Society.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
AuthorsEmailORCID
Dwivedi, NUNSPECIFIEDUNSPECIFIED
Kumar, SUNSPECIFIEDUNSPECIFIED
Tripathi, RKUNSPECIFIEDUNSPECIFIED
Dalai, MKUNSPECIFIEDUNSPECIFIED
Malik, HKUNSPECIFIEDUNSPECIFIED
Carey, JDUNSPECIFIEDUNSPECIFIED
Date : 10 April 2013
Identification Number : 10.1021/am4003183
Uncontrolled Keywords : silver nanoparticles, diamond-like carbon, carbon thin films, field emission, TOF_SIMS carbon, Raman spectroscopy, Fowler-Nordheim tunnelling, nanometals, DLC, enhancement factor
Additional Information : This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher.To access the final edited and published work see http://dx.doi.org/10.1021/am4003183.
Depositing User : Symplectic Elements
Date Deposited : 01 May 2013 15:20
Last Modified : 09 Jun 2014 13:12
URI: http://epubs.surrey.ac.uk/id/eprint/771117

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