Conduction mechanism in indium tin oxide/electroinactive polypyrrole/indium tin oxide sandwich structures

Tetsuya Osaka; Toshihiro Fukuda; Kiyoshi Ouchi; Toshiyuki Momma

doi:10.1016/0040-6090(92)90438-H

Conduction mechanism in indium tin oxide/electroinactive polypyrrole/indium tin oxide sandwich structures

Tetsuya Osaka^*, Toshihiro Fukuda, Kiyoshi Ouchi, Toshiyuki Momma

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

The electrical conduction mechanism for the indium tin oxide (ITO)/polypyrrole (PPy)/ITO sandwich type of metal-insulator-metal element was investigated, where electroinactive PPy polymerized in aqueous NaOH solution was used as an insulator. The ITO/PPy/Au element demonstrated a non-linear J-V response exactly the same as that of the ITO/PPy/ITO element, indicating that the carriers do not come from the interface but the bulk of an insulator. For the temperature dependence of the J-V responses of the ITO/PPy/ITO element, Poole-Frenkel emission is confirmed to be a dominant conduction mechanism. The activation energy of PPy electropolymerized for 60 min was calculated to be 0.46 eV on the basis of Poole-Frenkel emission. The activation energy and the conductivity of the PPy film were dependent on polymerization time.

Original language	English
Pages (from-to)	200-202
Number of pages	3
Journal	Thin Solid Films
Volume	215
Issue number	2
DOIs	https://doi.org/10.1016/0040-6090(92)90438-H
Publication status	Published - 1992 Aug 14

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/0040-6090(92)90438-H

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title = "Conduction mechanism in indium tin oxide/electroinactive polypyrrole/indium tin oxide sandwich structures",

abstract = "The electrical conduction mechanism for the indium tin oxide (ITO)/polypyrrole (PPy)/ITO sandwich type of metal-insulator-metal element was investigated, where electroinactive PPy polymerized in aqueous NaOH solution was used as an insulator. The ITO/PPy/Au element demonstrated a non-linear J-V response exactly the same as that of the ITO/PPy/ITO element, indicating that the carriers do not come from the interface but the bulk of an insulator. For the temperature dependence of the J-V responses of the ITO/PPy/ITO element, Poole-Frenkel emission is confirmed to be a dominant conduction mechanism. The activation energy of PPy electropolymerized for 60 min was calculated to be 0.46 eV on the basis of Poole-Frenkel emission. The activation energy and the conductivity of the PPy film were dependent on polymerization time.",

author = "Tetsuya Osaka and Toshihiro Fukuda and Kiyoshi Ouchi and Toshiyuki Momma",

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T1 - Conduction mechanism in indium tin oxide/electroinactive polypyrrole/indium tin oxide sandwich structures

AU - Osaka, Tetsuya

AU - Fukuda, Toshihiro

AU - Ouchi, Kiyoshi

AU - Momma, Toshiyuki

PY - 1992/8/14

Y1 - 1992/8/14

N2 - The electrical conduction mechanism for the indium tin oxide (ITO)/polypyrrole (PPy)/ITO sandwich type of metal-insulator-metal element was investigated, where electroinactive PPy polymerized in aqueous NaOH solution was used as an insulator. The ITO/PPy/Au element demonstrated a non-linear J-V response exactly the same as that of the ITO/PPy/ITO element, indicating that the carriers do not come from the interface but the bulk of an insulator. For the temperature dependence of the J-V responses of the ITO/PPy/ITO element, Poole-Frenkel emission is confirmed to be a dominant conduction mechanism. The activation energy of PPy electropolymerized for 60 min was calculated to be 0.46 eV on the basis of Poole-Frenkel emission. The activation energy and the conductivity of the PPy film were dependent on polymerization time.

AB - The electrical conduction mechanism for the indium tin oxide (ITO)/polypyrrole (PPy)/ITO sandwich type of metal-insulator-metal element was investigated, where electroinactive PPy polymerized in aqueous NaOH solution was used as an insulator. The ITO/PPy/Au element demonstrated a non-linear J-V response exactly the same as that of the ITO/PPy/ITO element, indicating that the carriers do not come from the interface but the bulk of an insulator. For the temperature dependence of the J-V responses of the ITO/PPy/ITO element, Poole-Frenkel emission is confirmed to be a dominant conduction mechanism. The activation energy of PPy electropolymerized for 60 min was calculated to be 0.46 eV on the basis of Poole-Frenkel emission. The activation energy and the conductivity of the PPy film were dependent on polymerization time.

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Conduction mechanism in indium tin oxide/electroinactive polypyrrole/indium tin oxide sandwich structures

Abstract

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