High quantum efficiency UV detection using a-Se based photodetector

Tomoaki Masuzawa; Masanori Onishi; Ichitaro Saito; Takatoshi Yamada; Angel T.T. Koh; Daniel H.C. Chua; Shuichi Ogawa; Yuji Takakuwa; Yusuke Mori; Tatsuo Shimosawa; Ken Okano

doi:10.1002/pssr.201307185

High quantum efficiency UV detection using a-Se based photodetector

Tomoaki Masuzawa, Masanori Onishi, Ichitaro Saito, Takatoshi Yamada, Angel T.T. Koh, Daniel H.C. Chua, Shuichi Ogawa, Yuji Takakuwa, Yusuke Mori, Tatsuo Shimosawa, Ken Okano

Division of Measurements

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

6 Citations (Scopus)

Abstract

High-sensitivity ultraviolet (UV) photodetection has been attempted by utilizing the carrier multiplication effect in amorphous selenium. The prototype photodetector presented in this Letter showed an extremely high sensitivity to UV light, so that up to 1000 carriers are generated per incident photon. This result should lead to the development of an ultrahigh-sensitivity photodetector that can be used for spectrometric applications covering the visible to UV region.

Original language	English
Pages (from-to)	473-476
Number of pages	4
Journal	Physica Status Solidi - Rapid Research Letters
Volume	7
Issue number	7
DOIs	https://doi.org/10.1002/pssr.201307185
Publication status	Published - 2013 Jul

Keywords

Amorphous selenium
Diamond cold cathode
Photodetector
Ultraviolet

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1002/pssr.201307185

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High quantum efficiency UV detection using a-Se based photodetector. / Masuzawa, Tomoaki; Onishi, Masanori; Saito, Ichitaro; Yamada, Takatoshi; Koh, Angel T.T.; Chua, Daniel H.C.; Ogawa, Shuichi ; Takakuwa, Yuji; Mori, Yusuke; Shimosawa, Tatsuo; Okano, Ken.

In: Physica Status Solidi - Rapid Research Letters, Vol. 7, No. 7, 07.2013, p. 473-476.

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

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abstract = "High-sensitivity ultraviolet (UV) photodetection has been attempted by utilizing the carrier multiplication effect in amorphous selenium. The prototype photodetector presented in this Letter showed an extremely high sensitivity to UV light, so that up to 1000 carriers are generated per incident photon. This result should lead to the development of an ultrahigh-sensitivity photodetector that can be used for spectrometric applications covering the visible to UV region.",

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AU - Onishi, Masanori

AU - Saito, Ichitaro

AU - Yamada, Takatoshi

AU - Koh, Angel T.T.

AU - Chua, Daniel H.C.

AU - Ogawa, Shuichi

AU - Takakuwa, Yuji

AU - Mori, Yusuke

AU - Shimosawa, Tatsuo

AU - Okano, Ken

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KW - Diamond cold cathode

KW - Photodetector

KW - Ultraviolet

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High quantum efficiency UV detection using a-Se based photodetector

Abstract

Keywords

ASJC Scopus subject areas

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