NDLI: Effect of nano-Al on the polarization of polyimide nanocomposite films with tri-layer structures

Content Provider	IEEE Xplore Digital Library
Author	Hui Shi Lizhu Liu Ling Weng Weiwei Cui Yuanyuan Li Liu Lizhu
Copyright Year	2015
Description	Author affiliation: Coll. of Mater. Sci. & Eng., Harbin Univ. of Sci. & Technol., Harbin, China (Hui Shi; Lizhu Liu; Ling Weng; Weiwei Cui; Yuanyuan Li) \|\| Key Lab. of Eng. Dielectr. & Its Applic., Harbin Univ. of Sci. & Technol., Harbin, China (Liu Lizhu)
Abstract	Polyimide (PI)/Aluminum oxide $(Al_{2}O_{3})$ nanocomposite films wtih tri-layer structures $(PI-Al_{2}O_{3}/PI/PI-Al_{2}O_{3})$ are manufactured from pyromellitic dianhydride (PMDA) and 4,4'-oxydianiline (ODA) via in-situ polymerization method. Microstructure, dielectric property and electrical conductivity of the nanocomposite films are characterized in this paper. Transmission Electron Microscope (TEM) and X-Ray Diffraction (XRD) results show that $nano-Al_{2}O_{3}$ particles are successfully introduced into target tri-layered structure and are homogeneously dispersed in the polyimide matrix. Compared with pure films, the obtained composite films perform lower relative permittivity at low $nano-Al_{2}O_{3}$ doping content (0-8wt%) and higher relative permittivity at high $nano-Al_{2}O_{3}$ doping content (>8wt%). The dielectric loss (loss tangent) of the composite films is higher than that of the pure films at the same frequency, and increases consistently with the increase of $nano-Al_{2}O_{3}$ content, especially in low frequency range. Furthermore, at the same $nano-Al_{2}O_{3}$ concentration, the dielectric loss of the composite films reduces at frequencies <;103 Hz and increases at frequencies >103 Hz. The effect of $nano-Al_{2}O_{3}$ on electrical conductivity is only observed clearly at low frequency region (<;10Hz). The above-mentioned dielectric property depends on the interaction and compromise of two kinds of polarization, i.e., interfacial polarization and anti-orientation polarization, which are attributed to the interfacial defect effect and blocking effect of $nano-Al_{2}O_{3}$ particles, respectively.
Starting Page	512
Ending Page	515
File Size	1121535
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295321
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Films Aluminum oxide Doping Polyimides Permittivity Dielectric losses Dielectric properties Polyimide Tri-layer structure Nano-Al2O3 Nanocomposite
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

High Temperature Dielectric Behavior of Al/Polyimide/Al Capacitor Structures

Breakdown strength and dielectric constants of Al doped polyimide

Preparation of high-dielectric-constant Ag@Al/polyimide composite films for embedded capacitor applications

Dielectric relaxation spectroscopy of single- and double-layer polyimide/SiO thin films

Study on the Dielectric Properties of Polyimide/Silica Nanocomposite Films

Effects of direct fluorination on surface charge of polyimide/Al nanocomposite films

Effect of Zirconium Doping on Electrical Properties of Aluminum Oxide Dielectric Layer by Spin Coating Method with Low Temperature Preparation

Electrical and mechanical characteristics of polyimide nanocomposite films for wind generator

Dependence of the breakdown strength on thickness and permittivity

Effect of nano-Al on the polarization of polyimide nanocomposite films with tri-layer structures

Similar Documents

High Temperature Dielectric Behavior of Al/Polyimide/Al Capacitor Structures

Breakdown strength and dielectric constants of Al doped polyimide

Preparation of high-dielectric-constant Ag@Al/polyimide composite films for embedded capacitor applications

Dielectric relaxation spectroscopy of single- and double-layer polyimide/SiO thin films

Study on the Dielectric Properties of Polyimide/Silica Nanocomposite Films

Effects of direct fluorination on surface charge of polyimide/Al nanocomposite films

Effect of Zirconium Doping on Electrical Properties of Aluminum Oxide Dielectric Layer by Spin Coating Method with Low Temperature Preparation

Electrical and mechanical characteristics of polyimide nanocomposite films for wind generator

Dependence of the breakdown strength on thickness and permittivity

Effect of nano-Al on the polarization of polyimide nanocomposite films with tri-layer structures