Rectifying polarity switch of Pt/TiO 2-x/Pt

Ni Zhong; Hisashi Shima; Hiro Akinaga

Rectifying polarity switch of Pt/TiO _2-x/Pt

Ni Zhong^*
, Hisashi Shima
, Hiro Akinaga

^*Corresponding author for this work

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

Abstract

Current-voltage (I-V) characteristic of Pt/TiO _2-x/Pt has been investigated. The Pt/TiO _2-x/Pt devices in the initial state exhibit a rectifying I-V behavior. By applying a pulse voltage, the rectifying polarity could be switched to an opposite direction. The mechanism of the rectifying polarity switch is proposed as the local drift of defects, such as oxygen vacancies (V _O), due to applying pulse voltage. It is found that the required pulse voltage height for the polarity switch (V _switch) exhibits much dependence on the operation temperature and width of applied pulse voltage. With an increase of the pulse voltage width or the measurement temperature (T), V _switch exhibits a decrease with increase of T. These results suggest that the rectifying polarity switch in the Pt/TiO _2-x/Pt is attributed to a thermal and dynamic dependence process, which agree well with the localized migration of V _O induced by applied pulse voltage.

Original language	English
Title of host publication	Functional Metal-Oxide Nanostructures
Pages	101-105
Number of pages	5
State	Published - 2009
Externally published	Yes
Event	2009 MRS Spring Meeting: Functional Metal-Oxide Nanostructures - San Francisco, CA, United States Duration: 14 Apr 2009 → 17 Apr 2009

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1174
ISSN (Print)	0272-9172

Conference

Conference	2009 MRS Spring Meeting: Functional Metal-Oxide Nanostructures
Country/Territory	United States
City	San Francisco, CA
Period	14/04/09 → 17/04/09

Cite this

@inproceedings{aa517dd7ca4a48d6b71f309c7aa161d4,

title = "Rectifying polarity switch of Pt/TiO 2-x/Pt",

abstract = "Current-voltage (I-V) characteristic of Pt/TiO 2-x/Pt has been investigated. The Pt/TiO 2-x/Pt devices in the initial state exhibit a rectifying I-V behavior. By applying a pulse voltage, the rectifying polarity could be switched to an opposite direction. The mechanism of the rectifying polarity switch is proposed as the local drift of defects, such as oxygen vacancies (V O), due to applying pulse voltage. It is found that the required pulse voltage height for the polarity switch (V switch) exhibits much dependence on the operation temperature and width of applied pulse voltage. With an increase of the pulse voltage width or the measurement temperature (T), V switch exhibits a decrease with increase of T. These results suggest that the rectifying polarity switch in the Pt/TiO 2-x/Pt is attributed to a thermal and dynamic dependence process, which agree well with the localized migration of V O induced by applied pulse voltage.",

author = "Ni Zhong and Hisashi Shima and Hiro Akinaga",

year = "2009",

language = "英语",

isbn = "9781605111476",

series = "Materials Research Society Symposium Proceedings",

pages = "101--105",

booktitle = "Functional Metal-Oxide Nanostructures",

note = "2009 MRS Spring Meeting: Functional Metal-Oxide Nanostructures ; Conference date: 14-04-2009 Through 17-04-2009",

}

TY - GEN

T1 - Rectifying polarity switch of Pt/TiO 2-x/Pt

AU - Zhong, Ni

AU - Shima, Hisashi

AU - Akinaga, Hiro

PY - 2009

Y1 - 2009

N2 - Current-voltage (I-V) characteristic of Pt/TiO 2-x/Pt has been investigated. The Pt/TiO 2-x/Pt devices in the initial state exhibit a rectifying I-V behavior. By applying a pulse voltage, the rectifying polarity could be switched to an opposite direction. The mechanism of the rectifying polarity switch is proposed as the local drift of defects, such as oxygen vacancies (V O), due to applying pulse voltage. It is found that the required pulse voltage height for the polarity switch (V switch) exhibits much dependence on the operation temperature and width of applied pulse voltage. With an increase of the pulse voltage width or the measurement temperature (T), V switch exhibits a decrease with increase of T. These results suggest that the rectifying polarity switch in the Pt/TiO 2-x/Pt is attributed to a thermal and dynamic dependence process, which agree well with the localized migration of V O induced by applied pulse voltage.

AB - Current-voltage (I-V) characteristic of Pt/TiO 2-x/Pt has been investigated. The Pt/TiO 2-x/Pt devices in the initial state exhibit a rectifying I-V behavior. By applying a pulse voltage, the rectifying polarity could be switched to an opposite direction. The mechanism of the rectifying polarity switch is proposed as the local drift of defects, such as oxygen vacancies (V O), due to applying pulse voltage. It is found that the required pulse voltage height for the polarity switch (V switch) exhibits much dependence on the operation temperature and width of applied pulse voltage. With an increase of the pulse voltage width or the measurement temperature (T), V switch exhibits a decrease with increase of T. These results suggest that the rectifying polarity switch in the Pt/TiO 2-x/Pt is attributed to a thermal and dynamic dependence process, which agree well with the localized migration of V O induced by applied pulse voltage.

UR - https://www.scopus.com/pages/publications/72749108892

M3 - 会议稿件

AN - SCOPUS:72749108892

SN - 9781605111476

T3 - Materials Research Society Symposium Proceedings

SP - 101

EP - 105

BT - Functional Metal-Oxide Nanostructures

T2 - 2009 MRS Spring Meeting: Functional Metal-Oxide Nanostructures

Y2 - 14 April 2009 through 17 April 2009

ER -

Rectifying polarity switch of Pt/TiO _2-x/Pt

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