Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO

M. Nakano; T. Makino; A. Tsukazaki; K. Ueno; A. Ohtomo; T. Fukumura; H. Yuji; S. Akasaka; K. Tamura; K. Nakahara; T. Tanabe; A. Kamisawa; M. Kawasaki

doi:10.1063/1.2989125

Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO

M. Nakano, T. Makino, A. Tsukazaki, K. Ueno, A. Ohtomo, T. Fukumura, H. Yuji, S. Akasaka, K. Tamura, K. Nakahara, T. Tanabe, A. Kamisawa, M. Kawasaki

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

125 Citations (Scopus)

Abstract

We report on a high performance visible-blind Schottky ultraviolet photodiode composed of a ZnO (0001) bulk single crystal and a transparent conducting polymer, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate), fabricated with a simple spin-coating process at room temperature in air. The quantum efficiency as high as unity in ultraviolet region and a visible rejection ratio of about 10³ were achieved in the spectral response of the photodiode under zero-bias condition. The normalized detectivity of the photodiode was evaluated to be 3.6× 1014 cm Hz1/2 /W at 370 nm.

Original language	English
Article number	123309
Journal	Applied Physics Letters
Volume	93
Issue number	12
DOIs	https://doi.org/10.1063/1.2989125
Publication status	Published - 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2989125

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Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO. / Nakano, M.; Makino, T.; Tsukazaki, A.; Ueno, K.; Ohtomo, A.; Fukumura, T.; Yuji, H.; Akasaka, S.; Tamura, K.; Nakahara, K.; Tanabe, T.; Kamisawa, A.; Kawasaki, M.

In: Applied Physics Letters, Vol. 93, No. 12, 123309, 2008.

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

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abstract = "We report on a high performance visible-blind Schottky ultraviolet photodiode composed of a ZnO (0001) bulk single crystal and a transparent conducting polymer, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate), fabricated with a simple spin-coating process at room temperature in air. The quantum efficiency as high as unity in ultraviolet region and a visible rejection ratio of about 103 were achieved in the spectral response of the photodiode under zero-bias condition. The normalized detectivity of the photodiode was evaluated to be 3.6× 1014 cm Hz1/2 /W at 370 nm.",

author = "M. Nakano and T. Makino and A. Tsukazaki and K. Ueno and A. Ohtomo and T. Fukumura and H. Yuji and S. Akasaka and K. Tamura and K. Nakahara and T. Tanabe and A. Kamisawa and M. Kawasaki",

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AU - Nakano, M.

AU - Makino, T.

AU - Tsukazaki, A.

AU - Ueno, K.

AU - Ohtomo, A.

AU - Fukumura, T.

AU - Yuji, H.

AU - Akasaka, S.

AU - Tamura, K.

AU - Nakahara, K.

AU - Tanabe, T.

AU - Kamisawa, A.

AU - Kawasaki, M.

N1 - Funding Information: M.N. is supported by Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists. The work is partly supported by Asahi Glass Foundation.

PY - 2008

Y1 - 2008

N2 - We report on a high performance visible-blind Schottky ultraviolet photodiode composed of a ZnO (0001) bulk single crystal and a transparent conducting polymer, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate), fabricated with a simple spin-coating process at room temperature in air. The quantum efficiency as high as unity in ultraviolet region and a visible rejection ratio of about 103 were achieved in the spectral response of the photodiode under zero-bias condition. The normalized detectivity of the photodiode was evaluated to be 3.6× 1014 cm Hz1/2 /W at 370 nm.

AB - We report on a high performance visible-blind Schottky ultraviolet photodiode composed of a ZnO (0001) bulk single crystal and a transparent conducting polymer, poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate), fabricated with a simple spin-coating process at room temperature in air. The quantum efficiency as high as unity in ultraviolet region and a visible rejection ratio of about 103 were achieved in the spectral response of the photodiode under zero-bias condition. The normalized detectivity of the photodiode was evaluated to be 3.6× 1014 cm Hz1/2 /W at 370 nm.

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Transparent polymer Schottky contact for a high performance visible-blind ultraviolet photodiode based on ZnO

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