A visible-blind TiO 2 nanowire photodetector

Tsung Ying Tsai; Shoou Jinn Chang; Wen Ying Weng; Cheng Liang Hsu; Sin Hui Wang; Chiu Jung Chiu; Ting Jen Hsueh; Sheng Po Chang

doi:10.1149/2.008205jes

A visible-blind TiO ₂ nanowire photodetector

Tsung Ying Tsai, Shoou Jinn Chang, Wen Ying Weng, Cheng Liang Hsu, Sin Hui Wang, Chiu Jung Chiu, Ting Jen Hsueh, Sheng Po Chang

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

40 Citations (Scopus)

Abstract

The authors report the growth of TiO ₂ nanowires by heating the Ti/glass template and the fabrication of a TiO ₂ nanowire photodetector (PD) by depositing interdigitated contact electrodes. It was also found that the fabricated TiO ₂ nanowire PD was visible-blind with a cutoff wavelength around 390 nm. Compared with conventional film-type TiO ₂ PDs, it was found that we could achieve a 10 times larger photocurrent from the TiO ₂ nanowire PD. It was also found that dynamic response of the TiO ₂ nanowire PD was stable and reproducible with an onoff current contrast ratio of around 100. Furthermore, it was found that UV-to-visible rejection ratio observed from the TiO ₂ nanowire PD was also larger, as compared to conventional film-type TiO ₂ PDs.

Original language	English
Pages (from-to)	J132-J135
Journal	Journal of the Electrochemical Society
Volume	159
Issue number	4
DOIs	https://doi.org/10.1149/2.008205jes
Publication status	Published - 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/2.008205jes

Cite this

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title = "A visible-blind TiO 2 nanowire photodetector",

abstract = "The authors report the growth of TiO 2 nanowires by heating the Ti/glass template and the fabrication of a TiO 2 nanowire photodetector (PD) by depositing interdigitated contact electrodes. It was also found that the fabricated TiO 2 nanowire PD was visible-blind with a cutoff wavelength around 390 nm. Compared with conventional film-type TiO 2 PDs, it was found that we could achieve a 10 times larger photocurrent from the TiO 2 nanowire PD. It was also found that dynamic response of the TiO 2 nanowire PD was stable and reproducible with an onoff current contrast ratio of around 100. Furthermore, it was found that UV-to-visible rejection ratio observed from the TiO 2 nanowire PD was also larger, as compared to conventional film-type TiO 2 PDs.",

author = "Tsai, {Tsung Ying} and Chang, {Shoou Jinn} and Weng, {Wen Ying} and Hsu, {Cheng Liang} and Wang, {Sin Hui} and Chiu, {Chiu Jung} and Hsueh, {Ting Jen} and Chang, {Sheng Po}",

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language = "English",

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T1 - A visible-blind TiO 2 nanowire photodetector

AU - Tsai, Tsung Ying

AU - Chang, Shoou Jinn

AU - Weng, Wen Ying

AU - Hsu, Cheng Liang

AU - Wang, Sin Hui

AU - Chiu, Chiu Jung

AU - Hsueh, Ting Jen

AU - Chang, Sheng Po

PY - 2012

Y1 - 2012

N2 - The authors report the growth of TiO 2 nanowires by heating the Ti/glass template and the fabrication of a TiO 2 nanowire photodetector (PD) by depositing interdigitated contact electrodes. It was also found that the fabricated TiO 2 nanowire PD was visible-blind with a cutoff wavelength around 390 nm. Compared with conventional film-type TiO 2 PDs, it was found that we could achieve a 10 times larger photocurrent from the TiO 2 nanowire PD. It was also found that dynamic response of the TiO 2 nanowire PD was stable and reproducible with an onoff current contrast ratio of around 100. Furthermore, it was found that UV-to-visible rejection ratio observed from the TiO 2 nanowire PD was also larger, as compared to conventional film-type TiO 2 PDs.

AB - The authors report the growth of TiO 2 nanowires by heating the Ti/glass template and the fabrication of a TiO 2 nanowire photodetector (PD) by depositing interdigitated contact electrodes. It was also found that the fabricated TiO 2 nanowire PD was visible-blind with a cutoff wavelength around 390 nm. Compared with conventional film-type TiO 2 PDs, it was found that we could achieve a 10 times larger photocurrent from the TiO 2 nanowire PD. It was also found that dynamic response of the TiO 2 nanowire PD was stable and reproducible with an onoff current contrast ratio of around 100. Furthermore, it was found that UV-to-visible rejection ratio observed from the TiO 2 nanowire PD was also larger, as compared to conventional film-type TiO 2 PDs.

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