Evaluation of dielectric relaxation parameters from TSDC analysis of pristine and ion irradiated kapton-H polyimide

被引：9
|
作者：
Sharma, Anu [1 ]
Yarramaneni, Sridharbabu [1 ]
Quamara, J. K. [1 ]
机构：
[1] Natl Inst Technol, Dept Phys, Kurukshetra 136118, Haryana, India
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2011年 / 269卷 / 08期
关键词：
Polymer; Relaxation parameters; TSDC; Kapton-H; STIMULATED DEPOLARIZATION CURRENT; RAY-INDUCED PHOTOCONDUCTIVITY; POLYMERS; BEHAVIOR; FILM;
D O I：
10.1016/j.nimb.2011.02.008
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The TSD currents of pristine and 75 MeV oxygen ion irradiated kapton-H polyimide were obtained in the temperature region 20-250 degrees C. The samples were polarized under different temperature windows (temperature regions in the absence of electric field) termed as window-I (75-55 degrees C) and window-II (90-75 and 55-20 degrees C). The TSDC characteristics consist of two current maxima termed as beta'-peak and beta-peak around 30 and 120 degrees C, respectively. The peak magnitude significantly depends on temperature windows. The strength of the beta'-peak and beta-peak is being affected in opposite modes in the pristine and ion irradiated samples, as pristine samples show an enhancement in the beta'-peak while there appears a suppression in the beta'-peak in case of ion irradiated samples. The precise determination of the dielectric relaxation parameters has been made by elementary Debye processes. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：759 / 763
页数：5
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