Leakage current measurements of a pixelated polycrystalline CVD diamond detector

Zain, R.M., Maneuski, D., O'Shea, V. , Bates, R., Blue, A. , Cunnigham, L., Stehl, C., Berderman, E. and Rahim, R.A. (2013) Leakage current measurements of a pixelated polycrystalline CVD diamond detector. Journal of Instrumentation, 8(01), C01056. (doi: 10.1088/1748-0221/8/01/C01056)

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Abstract

Diamond has several desirable features when used as a material for radiation detection. With the invention of synthetic growth techniques, it has become feasible to look at developing diamond radiation detectors with reasonable surface areas. Polycrystalline diamond has been grown using a chemical vapour deposition (CVD) technique by the University of Augsburg and detector structures fabricated at the James Watt Nanofabrication Centre (JWNC) in the University of Glasgow in order to produce pixelated detector arrays. The anode and cathode contacts are realised by depositing gold to produce ohmic contacts. Measurements of I-V characteristics were performed to study the material uniformity. The bias voltage is stepped from -1000V to 1000V to investigate the variation of leakage current from pixel to pixel. Bulk leakage current is measured to be less than 1nA.

Item Type:Articles
Additional Information:14th International Workshop on Radiation Imaging Detectors, Figueira da Foz, Portugal, 1-5 July, 2012.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Maneuski, Dr Dima and Blue, Dr Andrew and Bates, Dr Richard and O'Shea, Professor Val
Authors: Zain, R.M., Maneuski, D., O'Shea, V., Bates, R., Blue, A., Cunnigham, L., Stehl, C., Berderman, E., and Rahim, R.A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Instrumentation
Publisher:Institute of Physics Publishing Ltd.
ISSN:1748-0221
ISSN (Online):1748-0221
Published Online:31 January 2013
Copyright Holders:Copyright © 2013 The Authors
First Published:First published in Journal of Instrumentation 8(01):C01056
Publisher Policy:Reproduced under a Creative Commons License

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