Effect of Dielectric Behavior of Gate Dielectric Polymers on Memory Characteristics of Organic Field-effect Transistors

Memory characteristics of organic field-effect transistors (OFETs) fabricated using poly(γ-methyl-L-glutamate) (PMLG) and poly(ε-benzyloxycarbonyl-L-lysine) [PLys(z)] as gate dielectrics are investigated. The origin of difference in the memory retention property in the transfer characteristics of th...

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Published in:Journal of Photopolymer Science and Technology 2014/07/08, Vol.27(3), pp.333-337
Main Authors: Sakai, Heisuke, Cheong, Hae-Jeong, Kodzasa, Takehito, Tokuhisa, Hideo, Tokoro, Kazuhiko, Yoshida, Manabu, Ikoga, Taihei, Nakamura, Kazuki, Kobayashi, Norihisa, Uemura, Sei
Format: Article
Language:English
Subjects:
Depolarization
dielectric dispersion
Dielectrics
Dispersions
Field effect transistors
Gates
Organic transistor memory
Polymers
polypeptide
Semiconductor devices
Spectra
thermally stimulated depolarized current (TSDC)
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cited_by cdi_FETCH-LOGICAL-c568t-b29d94f4ec73830a574f613b3787c998113d5bb82bda10e60e0de1df849123793
cites cdi_FETCH-LOGICAL-c568t-b29d94f4ec73830a574f613b3787c998113d5bb82bda10e60e0de1df849123793
container_end_page 337
container_issue 3
container_start_page 333
container_title Journal of Photopolymer Science and Technology
container_volume 27
creator Sakai, Heisuke
Cheong, Hae-Jeong
Kodzasa, Takehito
Tokuhisa, Hideo
Tokoro, Kazuhiko
Yoshida, Manabu
Ikoga, Taihei
Nakamura, Kazuki
Kobayashi, Norihisa
Uemura, Sei
description Memory characteristics of organic field-effect transistors (OFETs) fabricated using poly(γ-methyl-L-glutamate) (PMLG) and poly(ε-benzyloxycarbonyl-L-lysine) [PLys(z)] as gate dielectrics are investigated. The origin of difference in the memory retention property in the transfer characteristics of the OFETs is investigated by thermally stimulated depolarized current (TSDC) and dielectric spectra measurements for the PLys(z) and PMLG films. TSDC measurements reveal that the depolarization of the PLys(z) film is mainly dominated by a single relaxation process around room temperature, but that of the PMLG film is not dominated by a relaxation process. Further, the PLys(z) film shows dielectric dispersion near room temperature, but the PMLG film does not show any dispersion. This causes difference in the electric characteristics of OFETs.
doi_str_mv 10.2494/photopolymer.27.333
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subjects Depolarization
dielectric dispersion
Dielectrics
Dispersions
Field effect transistors
Gates
Organic transistor memory
Polymers
polypeptide
Semiconductor devices
Spectra
thermally stimulated depolarized current (TSDC)
title Effect of Dielectric Behavior of Gate Dielectric Polymers on Memory Characteristics of Organic Field-effect Transistors
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