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Browse Journals & Magazines > Applied Physics Letters ...> Volume:87 Issue:9 Help

Performance of a diamond x-ray sensor fabricated with metal-less graphitic contacts

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2 Author(s)
Sellin, P.J. ; Department of Physics, University of Surrey, Guildford Surrey GU2 7XH, United Kingdom ; Galbiati, A.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2035885 

We report the x-ray photocurrent response of a coplanar chemical vapor deposition diamond detector fabricated using a metal-less graphitic ohmic contact. Ion implantation of 70 keV boron ions to a dose of 2×1016 cm-2 was performed through a patterned photoresist to produce a coplanar graphitic contact structure. The device photocurrent showed a fast response to pulsed x-ray irradiation, and showed no evidence of photocurrent persistence that is observed in devices fabricated using metal Schottky contacts. The graphite-contact device also showed no extrinsic photoconductivity when illuminated with white light.

Published in:
Applied Physics Letters  (Volume:87 ,  Issue: 9 )

Date of Publication: Aug 2005

Page(s):
093502 - 093502-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2035885
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Aug 2005

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