A new model for surface potential decay of corona-charged polymers
A new model for surface potential decay of corona-charged polymers
Surface potential measurement provides a useful tool to gauge the electrical properties of materials. It has been observed that the potential of a sample with an initial high surface potential decays faster than that with an initial lower surface potential, known as the cross-over phenomenon. The phenomenon was found a few decades ago and various theories and models have been proposed. A common feature of the existing models is based on single charge carrier injection from a corona-charged surface. With our recent space charge measurement results on corona-charged samples, double injection from both electrodes has been verified. Based on this new fact, a new model based on bipolar charge injection is proposed and initial numerical simulation reveals that the surface potential cross-over phenomenon can occur under bipolar charge injection.
55405
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
February 2010
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Chen, George
(2010)
A new model for surface potential decay of corona-charged polymers.
Journal of Physics D: Applied Physics, 43 (5), .
(doi:10.1088/0022-3727/43/5/055405).
Abstract
Surface potential measurement provides a useful tool to gauge the electrical properties of materials. It has been observed that the potential of a sample with an initial high surface potential decays faster than that with an initial lower surface potential, known as the cross-over phenomenon. The phenomenon was found a few decades ago and various theories and models have been proposed. A common feature of the existing models is based on single charge carrier injection from a corona-charged surface. With our recent space charge measurement results on corona-charged samples, double injection from both electrodes has been verified. Based on this new fact, a new model based on bipolar charge injection is proposed and initial numerical simulation reveals that the surface potential cross-over phenomenon can occur under bipolar charge injection.
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Published date: February 2010
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Local EPrints ID: 268404
URI: http://eprints.soton.ac.uk/id/eprint/268404
ISSN: 0022-3727
PURE UUID: f49a7ac5-a8e5-48e9-9628-32ea9b3493a5
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Date deposited: 22 Jan 2010 09:53
Last modified: 14 Mar 2024 09:10
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George Chen
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