Detecting 6 MV X-rays using an organic photovoltaic device

Abstract

An organic photovoltaic (OPV) device has been used in conjunction with a flexible inorganic phosphor to produce a radiation tolerant, efficient and linear detector for 6 MV Xrays. The OPVs were based on a blend of poly(3-hexylthiophene-2,5-diyl) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM). We show that the devices have a sensitivity an order of magnitude higher than a commercial silicon detector used as a reference. Exposure to 360 Grays of radiation resulted in a small (2%) degradation in performance demonstrating that these detectors have the potential to be used as flexible, real-time, in vivo dosimeters for oncology treatments. (C) 2009 Elsevier B.V. All rights reserved.

Metadata

Item Type:	Article
Authors/Creators:	Kingsley, J.W. Pearson, A.J. Harris, L. Weston, S.J. Lidzey, D.G.
Copyright, Publisher and Additional Information:	© 2009 Elsevier. This is an author produced version of a paper subsequently published in Organic Electronics. Uploaded in accordance with the publisher's self-archiving policy.
Keywords:	Organic photovoltaic; X-ray; P3HT; PCBM
Dates:	Published: September 2009
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Miss Anthea Tucker
Date Deposited:	28 Sep 2009 11:33
Last Modified:	08 Feb 2013 16:59
Published Version:	http://dx.doi.org/10.1016/j.orgel.2009.06.006
Status:	Published
Publisher:	Elsevier
Refereed:	Yes
Identification Number:	10.1016/j.orgel.2009.06.006
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:9783

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Detecting 6 MV X-rays using an organic photovoltaic device

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