NDLI: Quantum chemical calculation studies on hetero charge accumulation in polyimide film containing water

Content Provider	IEEE Xplore Digital Library
Author	Takada, T. Miyake, H. Tanaka, Y. Yoshida, M. Hayase, Y.
Copyright Year	2013
Description	Author affiliation: Tokyo City Univ., Tokyo, Japan (Takada, T.; Miyake, H.; Tanaka, Y.; Yoshida, M.) \|\| Fuji Electr. Co., Ltd., Hino, Japan (Hayase, Y.)
Abstract	A large quantity of hetero charge was observed in polyimide $(Kapton^{®}-H)$ film subjected to high electrical stress of 100kV/mm and under the condition of high humidity. In order to investigate the hetero charge accumulation, Quantum Chemical Calculation was applied to a small piece of polyimide specimen for obtaining an energy band structure, a band gap and an electric carrier trap level. Furthermore, it is discussed that a dipole moment of a series of water molecules made a narrow band gap in the polyimide chain, which increased more hetero charge, and finally led to a thermal breakdown by increasing conductivity.
Sponsorship	IEEE Dielectr. Electr. Insul. Soc.
Starting Page	246
Ending Page	249
File Size	316262
Page Count	4
File Format	PDF
ISBN	9781479925971
DOI	10.1109/CEIDP.2013.6747457
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polyimides Chemicals Charge carrier processes Films Electric breakdown Stress Humidity
Content Type	Text
Resource Type	Article

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Quantum chemical calculation studies on hetero charge accumulation in polyimide film containing water