The University of Southampton
University of Southampton Institutional Repository

Observation of negative differential mobility and charge packet in polyethylene

Observation of negative differential mobility and charge packet in polyethylene
Observation of negative differential mobility and charge packet in polyethylene
Charge packet has been observed on many occasions but its physical mechanisms have never been properly understood. One of the models proposed by Lewis et al shows the presence of negative differential mobility with an electric field in semicrystalline polyethylene. In this paper we have observed the negative differential mobility using the transient space charge profile measured by the pulsed electroacoustic technique. By superimposing a short pulse voltage to a dc voltage, it is possible to obtain the velocity of holes at different applied fields. To the best of our knowledge we have for the first time observed negative differential mobility in polyethylene. This observation provides crucial evidence to support Lewis’s model and allows one to simulate charge packet and its behaviours.
0022-3727
212001
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhao, Junwei
b3fc6668-bcfd-4ba3-8c44-809cc7f26727
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhao, Junwei
b3fc6668-bcfd-4ba3-8c44-809cc7f26727

Chen, George and Zhao, Junwei (2011) Observation of negative differential mobility and charge packet in polyethylene. Journal of Physics D: Applied Physics, 44 (21), 212001.

Record type: Article

Abstract

Charge packet has been observed on many occasions but its physical mechanisms have never been properly understood. One of the models proposed by Lewis et al shows the presence of negative differential mobility with an electric field in semicrystalline polyethylene. In this paper we have observed the negative differential mobility using the transient space charge profile measured by the pulsed electroacoustic technique. By superimposing a short pulse voltage to a dc voltage, it is possible to obtain the velocity of holes at different applied fields. To the best of our knowledge we have for the first time observed negative differential mobility in polyethylene. This observation provides crucial evidence to support Lewis’s model and allows one to simulate charge packet and its behaviours.

Text
Charge_Mobility_in_LDPE.pdf - Version of Record
Restricted to Registered users only
Download (492kB)
Request a copy

More information

Published date: June 2011
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272508
URI: http://eprints.soton.ac.uk/id/eprint/272508
ISSN: 0022-3727
PURE UUID: 77e4e903-aa88-4148-ac6e-195bc336cce7

Catalogue record

Date deposited: 22 Jun 2011 16:20
Last modified: 09 Dec 2019 20:09

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×