Space charges induced in polymers by electron beam irradiation and their decay profiles

Naoto Tomite; Yukitaka Arai; Yoshimichi Ohki; Hirotaka Nakmura; Toru Hinata; Masakazu Washio

doi:10.1109/ICSD.2013.6619737

Space charges induced in polymers by electron beam irradiation and their decay profiles

Naoto Tomite^*, Yukitaka Arai, Yoshimichi Ohki, Hirotaka Nakmura, Toru Hinata, Masakazu Washio

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

Electrons were irradiated to low-density polyethylene (LDPE), polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and syndiotactic polystyrene (SPS). Many electrons were back scattered and large numbers of electrons and holes were generated in the film by ionization. Since the amount of negative charge observed under short-circuit after the irradiation is significantly smaller than the electron fluence, most electrons and holes generated by the irradiation were either recombined or transported to the electrodes. The amount of negative charge gradually decreases monotonically, showing the order of the decay speed, PI > LDPE > PET > SPS > PEN. The conductivity also shows the same order. When a dc voltage is applied to the sample, in which electrons and holes were generated abundantly by ionization, the electric field is enhanced significantly at the two electrodes due to the presence of positive charge near the cathode and negative charge near the anode.

Original language	English
Title of host publication	ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics
Pages	736-739
Number of pages	4
DOIs	https://doi.org/10.1109/ICSD.2013.6619737
Publication status	Published - 2013 Dec 1
Event	ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics - Bologna, Italy Duration: 2013 Jun 30 → 2013 Jul 4

Publication series

Name	Proceedings of IEEE International Conference on Solid Dielectrics, ICSD
ISSN (Print)	1553-5282
ISSN (Electronic)	2159-1687

Other

Other	ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics
Country/Territory	Italy
City	Bologna
Period	13/6/30 → 13/7/4

Keywords

conductivity
electron beam
insulating material
space charge

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Materials Chemistry
Condensed Matter Physics

Access to Document

10.1109/ICSD.2013.6619737

Cite this

Tomite, N., Arai, Y., Ohki, Y., Nakmura, H., Hinata, T., & Washio, M. (2013). Space charges induced in polymers by electron beam irradiation and their decay profiles. In ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics (pp. 736-739). [6619737] (Proceedings of IEEE International Conference on Solid Dielectrics, ICSD). https://doi.org/10.1109/ICSD.2013.6619737

Space charges induced in polymers by electron beam irradiation and their decay profiles. / Tomite, Naoto; Arai, Yukitaka; Ohki, Yoshimichi et al.

ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics. 2013. p. 736-739 6619737 (Proceedings of IEEE International Conference on Solid Dielectrics, ICSD).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tomite, N, Arai, Y, Ohki, Y, Nakmura, H, Hinata, T & Washio, M 2013, Space charges induced in polymers by electron beam irradiation and their decay profiles. in ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics., 6619737, Proceedings of IEEE International Conference on Solid Dielectrics, ICSD, pp. 736-739, ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics, Bologna, Italy, 13/6/30. https://doi.org/10.1109/ICSD.2013.6619737

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AU - Washio, Masakazu

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N2 - Electrons were irradiated to low-density polyethylene (LDPE), polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and syndiotactic polystyrene (SPS). Many electrons were back scattered and large numbers of electrons and holes were generated in the film by ionization. Since the amount of negative charge observed under short-circuit after the irradiation is significantly smaller than the electron fluence, most electrons and holes generated by the irradiation were either recombined or transported to the electrodes. The amount of negative charge gradually decreases monotonically, showing the order of the decay speed, PI > LDPE > PET > SPS > PEN. The conductivity also shows the same order. When a dc voltage is applied to the sample, in which electrons and holes were generated abundantly by ionization, the electric field is enhanced significantly at the two electrodes due to the presence of positive charge near the cathode and negative charge near the anode.

AB - Electrons were irradiated to low-density polyethylene (LDPE), polyimide (PI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and syndiotactic polystyrene (SPS). Many electrons were back scattered and large numbers of electrons and holes were generated in the film by ionization. Since the amount of negative charge observed under short-circuit after the irradiation is significantly smaller than the electron fluence, most electrons and holes generated by the irradiation were either recombined or transported to the electrodes. The amount of negative charge gradually decreases monotonically, showing the order of the decay speed, PI > LDPE > PET > SPS > PEN. The conductivity also shows the same order. When a dc voltage is applied to the sample, in which electrons and holes were generated abundantly by ionization, the electric field is enhanced significantly at the two electrodes due to the presence of positive charge near the cathode and negative charge near the anode.

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Space charges induced in polymers by electron beam irradiation and their decay profiles

Abstract

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Keywords

ASJC Scopus subject areas

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