Investigation of electrical transport in anodized single TiO2 nanotubes

Masashi Hattori; Kei Noda; Tatsuya Nishi; Kei Kobayashi; Hirofumi Yamada; Kazumi Matsushige

doi:10.1063/1.4789763

Investigation of electrical transport in anodized single TiO₂ nanotubes

Masashi Hattori, Kei Noda, Tatsuya Nishi, Kei Kobayashi, Hirofumi Yamada, Kazumi Matsushige

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

24 Citations (Scopus)

Abstract

Electrical transport in anodized single titania nanotube (TNT) free from any structural effects of titania nanotube array (TNA) was investigated. An anodized TNA was disassembled into single TNTs with two-step anodization technique. Then, single TNT bridges between gold electrodes with a gap of 500 nm were prepared by dielectrophoretic alignment. Quantitative assessment of electron mobility inside single anatase and rutile TNT was carried out by 2-probe current-voltage measurement and analysis based on a metal-semiconductor- metal circuit model with Schottky barriers. Our approach to intrinsic electrical transport of single nanotube is quite effective for understanding the electronic and optical properties of TNA.

Original language	English
Article number	043105
Journal	Applied Physics Letters
Volume	102
Issue number	4
DOIs	https://doi.org/10.1063/1.4789763
Publication status	Published - 2013 Jan 28
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4789763

Cite this

@article{8d07af588c4d42e9bd459ccaf13b15c3,

title = "Investigation of electrical transport in anodized single TiO2 nanotubes",

abstract = "Electrical transport in anodized single titania nanotube (TNT) free from any structural effects of titania nanotube array (TNA) was investigated. An anodized TNA was disassembled into single TNTs with two-step anodization technique. Then, single TNT bridges between gold electrodes with a gap of 500 nm were prepared by dielectrophoretic alignment. Quantitative assessment of electron mobility inside single anatase and rutile TNT was carried out by 2-probe current-voltage measurement and analysis based on a metal-semiconductor- metal circuit model with Schottky barriers. Our approach to intrinsic electrical transport of single nanotube is quite effective for understanding the electronic and optical properties of TNA.",

author = "Masashi Hattori and Kei Noda and Tatsuya Nishi and Kei Kobayashi and Hirofumi Yamada and Kazumi Matsushige",

note = "Funding Information: This work was partly supported by Global Center of Excellence (G-COE) program of the Ministry of Education, Culture, Sports, Science, and Technology of Japan.",

year = "2013",

month = jan,

day = "28",

doi = "10.1063/1.4789763",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "4",

}

TY - JOUR

T1 - Investigation of electrical transport in anodized single TiO2 nanotubes

AU - Hattori, Masashi

AU - Noda, Kei

AU - Nishi, Tatsuya

AU - Kobayashi, Kei

AU - Yamada, Hirofumi

AU - Matsushige, Kazumi

N1 - Funding Information: This work was partly supported by Global Center of Excellence (G-COE) program of the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

PY - 2013/1/28

Y1 - 2013/1/28

N2 - Electrical transport in anodized single titania nanotube (TNT) free from any structural effects of titania nanotube array (TNA) was investigated. An anodized TNA was disassembled into single TNTs with two-step anodization technique. Then, single TNT bridges between gold electrodes with a gap of 500 nm were prepared by dielectrophoretic alignment. Quantitative assessment of electron mobility inside single anatase and rutile TNT was carried out by 2-probe current-voltage measurement and analysis based on a metal-semiconductor- metal circuit model with Schottky barriers. Our approach to intrinsic electrical transport of single nanotube is quite effective for understanding the electronic and optical properties of TNA.

AB - Electrical transport in anodized single titania nanotube (TNT) free from any structural effects of titania nanotube array (TNA) was investigated. An anodized TNA was disassembled into single TNTs with two-step anodization technique. Then, single TNT bridges between gold electrodes with a gap of 500 nm were prepared by dielectrophoretic alignment. Quantitative assessment of electron mobility inside single anatase and rutile TNT was carried out by 2-probe current-voltage measurement and analysis based on a metal-semiconductor- metal circuit model with Schottky barriers. Our approach to intrinsic electrical transport of single nanotube is quite effective for understanding the electronic and optical properties of TNA.

UR - http://www.scopus.com/inward/record.url?scp=84873583096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873583096&partnerID=8YFLogxK

U2 - 10.1063/1.4789763

DO - 10.1063/1.4789763

M3 - Article

AN - SCOPUS:84873583096

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 043105

ER -

Investigation of electrical transport in anodized single TiO₂ nanotubes

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this