Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/35961
Title: | Spectroscopic insight of low energy electron emission from diamond surfaces | Authors: | Wan, Gary Cattelan, Mattia Croot, Alex Dominguez-Andrade, Hugo NICLEY, Shannon HAENEN, Ken Fox, Neil A. |
Issue Date: | 2021 | Publisher: | PERGAMON-ELSEVIER SCIENCE LTD | Source: | CARBON, 185 , p. 376 -383 | Abstract: | Low work function materials are desirable in many applications such as electron emission and photo-catalysis. We have studied low energy electron emission from low work function hydrogen terminated diamond surfaces via electron spectroscopy to gain insight into the mechanisms involved during electron excitation and emission. Electron emission was found to be dominated by electrons within the band gap energy region, allowed due to the negative electron affinity diamond surface, while sub-bandgap illu-mination was able to significantly increase emission current. Substantial upward surface band bending greater than 2 eV was observed for the diamond samples, which affect electron accumulation at the surfaces. Intra-bandgap states are shown to strongly influence electron emission behavior, which can have great implications for various energy conversion devices. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | Notes: | Wan, G (corresponding author), Univ Bristol, Bristol Ctr Funct Nanomat, Tyndall Ave, Bristol BS8 1TL, Avon, England. gary.wan@bristol.ac.uk |
Keywords: | Diamond; Thermionic emission; Spectroscopy; Surface states;;Photoemission | Document URI: | http://hdl.handle.net/1942/35961 | ISSN: | 0008-6223 | e-ISSN: | 1873-3891 | DOI: | 10.1016/j.carbon.2021.09.045 | ISI #: | WOS:000701978600007 | Rights: | ©2021 Published by Elsevier Ltd. This is an open access article under the CC BY license | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1-s2.0-S0008622321009362-main.pdf | Published version | 1.83 MB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
3
checked on Sep 28, 2024
Page view(s)
34
checked on Sep 7, 2022
Download(s)
28
checked on Sep 7, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.