A transparent metal: Nb-doped anatase TiO2

Yutaka Furubayashi; Taro Hitosugi; Yukio Yamamoto; Kazuhisa Inaba; Go Kinoda; Yasushi Hirose; Toshihiro Shimada; Tetsuya Hasegawa

doi:10.1063/1.1949728

A transparent metal: Nb-doped anatase TiO₂

Yutaka Furubayashi, Taro Hitosugi, Yukio Yamamoto, Kazuhisa Inaba, Go Kinoda, Yasushi Hirose, Toshihiro Shimada, Tetsuya Hasegawa

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

660 Citations (Scopus)

Abstract

This Letter focuses on the discovery of a transparent conducting oxide (TCO), anatase Ti_1-xNb_xO₂ films with x=0.002-0.2. The resistivity of films with x≥0.03 is 2-3 × 10 ^-4 Ω cm at room temperature. The carrier density of Ti _1-xNb_xO₂ can be controlled in a range of 1 × 10¹⁹ to 2 × 10²¹ cm^-3. The internal transmittance for films with x≤0.03 (40 nm thickness) is about 97% in the visible light region. The transport and optical parameters are comparable to those of typical TCOs, such as In_2-xSn_xO₃ and ZnO.

Original language	English
Article number	252101
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	25
DOIs	https://doi.org/10.1063/1.1949728
Publication status	Published - 2005

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "This Letter focuses on the discovery of a transparent conducting oxide (TCO), anatase Ti1-xNbxO2 films with x=0.002-0.2. The resistivity of films with x≥0.03 is 2-3 × 10 -4 Ω cm at room temperature. The carrier density of Ti 1-xNbxO2 can be controlled in a range of 1 × 1019 to 2 × 1021 cm-3. The internal transmittance for films with x≤0.03 (40 nm thickness) is about 97% in the visible light region. The transport and optical parameters are comparable to those of typical TCOs, such as In2-xSnxO3 and ZnO.",

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AU - Furubayashi, Yutaka

AU - Hitosugi, Taro

AU - Yamamoto, Yukio

AU - Inaba, Kazuhisa

AU - Kinoda, Go

AU - Hirose, Yasushi

AU - Shimada, Toshihiro

AU - Hasegawa, Tetsuya

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AB - This Letter focuses on the discovery of a transparent conducting oxide (TCO), anatase Ti1-xNbxO2 films with x=0.002-0.2. The resistivity of films with x≥0.03 is 2-3 × 10 -4 Ω cm at room temperature. The carrier density of Ti 1-xNbxO2 can be controlled in a range of 1 × 1019 to 2 × 1021 cm-3. The internal transmittance for films with x≤0.03 (40 nm thickness) is about 97% in the visible light region. The transport and optical parameters are comparable to those of typical TCOs, such as In2-xSnxO3 and ZnO.

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