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An improved model to estimate trapping parameters in polymeric materials and its application on normal and aged low-density polyethylenes

An improved model to estimate trapping parameters in polymeric materials and its application on normal and aged low-density polyethylenes
An improved model to estimate trapping parameters in polymeric materials and its application on normal and aged low-density polyethylenes
Trapping parameters can be considered as one of the important attributes to describe polymeric materials. In the present paper, a more accurate charge dynamics model has been developed, which takes account of charge dynamics in both volts-on and off stage into simulation. By fitting with measured charge data with the highest R-square value, trapping parameters together with injection barrier of both normal and aged low-density polyethylene samples were estimated using the improved model. The results show that, after long-term ageing process, the injection barriers of both electrons and holes is lowered, overall trap depth is shallower, and trap density becomes much greater. Additionally, the changes in parameters for electrons are more sensitive than those of holes after ageing.
0021-8979
1-12
Liu, Ning
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He, Miao
494fe4b5-f12b-4c60-82f7-ee9db7c10236
Alghamdi, Hisham
c7a5dbd4-cffb-4985-a9cd-836c4aa1eaf5
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Fu, Mingli
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Li, Ruihai
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Hou, Shuai
cab140b3-1a0f-4db3-8246-c65ca43589c5
Liu, Ning
f7db88b0-49eb-4cc4-9d98-c73be7da1784
He, Miao
494fe4b5-f12b-4c60-82f7-ee9db7c10236
Alghamdi, Hisham
c7a5dbd4-cffb-4985-a9cd-836c4aa1eaf5
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Fu, Mingli
4243dd1d-68a9-43b3-b339-f8f8a28f217f
Li, Ruihai
9c47dd03-c208-471f-81ef-7f5281b58332
Hou, Shuai
cab140b3-1a0f-4db3-8246-c65ca43589c5

Liu, Ning, He, Miao, Alghamdi, Hisham, Chen, George, Fu, Mingli, Li, Ruihai and Hou, Shuai (2015) An improved model to estimate trapping parameters in polymeric materials and its application on normal and aged low-density polyethylenes. Journal of Applied Physics, 118 (6), 1-12. (doi:10.1063/1.4928182).

Record type: Article

Abstract

Trapping parameters can be considered as one of the important attributes to describe polymeric materials. In the present paper, a more accurate charge dynamics model has been developed, which takes account of charge dynamics in both volts-on and off stage into simulation. By fitting with measured charge data with the highest R-square value, trapping parameters together with injection barrier of both normal and aged low-density polyethylene samples were estimated using the improved model. The results show that, after long-term ageing process, the injection barriers of both electrons and holes is lowered, overall trap depth is shallower, and trap density becomes much greater. Additionally, the changes in parameters for electrons are more sensitive than those of holes after ageing.

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Accepted/In Press date: 26 July 2015
e-pub ahead of print date: 11 August 2015
Published date: 14 August 2015
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 397435
URI: http://eprints.soton.ac.uk/id/eprint/397435
ISSN: 0021-8979
PURE UUID: c2d144ce-e6f9-4398-a21a-15ccbf9295c8

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Date deposited: 01 Jul 2016 09:22
Last modified: 16 Dec 2019 19:51

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Contributors

Author: Ning Liu
Author: Miao He
Author: Hisham Alghamdi
Author: George Chen
Author: Mingli Fu
Author: Ruihai Li
Author: Shuai Hou

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