Depth Profile and Transport of Positive and Negative Charge in Surface (2-D) and Bulk (3-D) Nanocomposite Films
- In the present study, the charge distribution and the charge transport across the thickness of 2- and 3-dimensional polymer nanodielectrics was investigated. Chemically surface-treated polypropylene (PP) films and low-density polyethylene nanocomposite films with 3 wt % of magnesium oxide (LDPE/MgO) served as examples of 2-D and 3-D nanodielectrics, respectively. Surface charges were deposited onto the non-metallized surfaces of the one-side metallized polymer films and found to broaden and to thus enter the bulk of the films upon thermal stimulation at suitable elevated temperatures. The resulting space-charge profiles in the thickness direction were probed by means of Piezoelectrically-generated Pressure Steps (PPSs). It was observed that the chemical surface treatment of PP which led to the formation of nano-structures or the use of bulk nanoparticles from LDPE/MgO nanocomposites enhance charge trapping on or in the respective polymer films and also reduce charge transport inside the respective samples.
Author details: | Quyet Doan NguyenORCiDGND, Jingwen WangORCiD, Dmitry RychkovORCiD, Reimund GerhardORCiDGND |
---|---|
DOI: | https://doi.org/10.1109/ICEMPE.2019.8727256 |
ISBN: | 978-1-5386-8434-4 |
ISBN: | 978-1-5386-8435-1 |
Title of parent work (English): | 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE 2019) |
Publisher: | IEEE |
Place of publishing: | New York |
Publication type: | Other |
Language: | English |
Date of first publication: | 2019/06/03 |
Publication year: | 2019 |
Release date: | 2021/05/03 |
Tag: | Acoustic probing of electric-field profiles; Charge stability; Charge transport; LDPE nanocomposites; MgO nanoparticles; Piezoelectrically generated Pressure Steps (PPSs); Space charge |
Number of pages: | 3 |
First page: | 298 |
Last Page: | 300 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |