Effect of heating treatment on trap level distribution in polyamide 66 film electrets

doi:10.1088/1674-1056/23/3/037701

Abstract The effect of heating treatment on the trap level distribution in polyamide 66 film electret is studied by thermally stimulated depolarization current (TSDC) technique. For annealed polyamide 66, there are three trap levels that respectively originate from space charge trapped in amorphous phase, interphase and crystalline phase. There is one peak that originates from space charge trapped in amorphous phase for quenched one. Using multi-point method to fit the experimental curves, the detrapping current peaks can be separated and the trap depth is obtained. The shallower trap levels trapped in amorphous phase and interphase are obviously close to the deeper trap level trapped in crystalline phase for annealed polyamide 66 as the polarization temperature increases, while the trap level distribution remains unaffected by polarization temperature for quenched one.

Keywords: polyamide 66 film electret thermally stimulated depolarization current heating treatment

Received: 21 May 2013
Revised: 18 July 2013
Accepted manuscript online:

PACS:	77.22.-d	(Dielectric properties of solids and liquids)
	73.50.Gr	(Charge carriers: generation, recombination, lifetime, trapping, mean free paths)
	73.61.Ph	(Polymers; organic compounds)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 20974108), the Natural Science Foundation of Anhui Province, China (Grant No. 1308085QB40), the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos. 2013HGQC0016 and 2011HGBZ1323).

Corresponding Authors: Zhang Xing-Yuan
E-mail: zxym@ustc.edu.cn

Cite this article:

Xu Pei (徐佩), Zhang Xing-Yuan (张兴元) Effect of heating treatment on trap level distribution in polyamide 66 film electrets 2014 Chin. Phys. B 23 037701

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Effect of heating treatment on trap level distribution in polyamide 66 film electrets

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