Performance of a Diamond X-ray Sensor Fabricated with Metal-less Graphitic Contacts

Sellin, P J and Galbiati, A (2005) Performance of a Diamond X-ray Sensor Fabricated with Metal-less Graphitic Contacts Applied Physics Letters, 87 (9). ISSN 00036951

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Abstract

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 2x10(16) 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.

Item Type:	Article
Additional Information:	Published in <i>Applied Physics Letters,</i> Vol. 87, Iss. 9. Copyright 2005 American Institute of Physics. Click <a href=http://apl.aip.org/>here</a> to access the journal's website.
Divisions:	Faculty of Engineering and Physical Sciences > Physics
Depositing User:	Mr Adam Field
Date Deposited:	27 May 2010 14:09
Last Modified:	23 Sep 2013 18:28
URI:	http://epubs.surrey.ac.uk/id/eprint/406

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