Development of an amorphous selenium-based photodetector driven by a diamond cold cathode

Tomoaki Masuzawa; Ichitaro Saito; Takatoshi Yamada; Masanori Onishi; Hisato Yamaguchi; Yu Suzuki; Kousuke Oonuki; Nanako Kato; Shuichi Ogawa; Yuji Takakuwa; Angel T.T. Koh; Daniel H.C. Chua; Yusuke Mori; Tatsuo Shimosawa; Ken Okano

doi:10.3390/s131013744

Development of an amorphous selenium-based photodetector driven by a diamond cold cathode

Tomoaki Masuzawa, Ichitaro Saito, Takatoshi Yamada, Masanori Onishi, Hisato Yamaguchi, Yu Suzuki, Kousuke Oonuki, Nanako Kato, Shuichi Ogawa, Yuji Takakuwa, Angel T.T. Koh, Daniel H.C. Chua, Yusuke Mori, Tatsuo Shimosawa, Ken Okano

Micro System Integration Center (μSIC)

Research output: Contribution to journal › Review article › peer-review

43 Citations (Scopus)

Abstract

Amorphous-selenium (a-Se) based photodetectors are promising candidates for imaging devices, due to their high spatial resolution and response speed, as well as extremely high sensitivity enhanced by an internal carrier multiplication. In addition, a-Se is reported to show sensitivity against wide variety of wavelengths, including visible, UV and X-ray, where a-Se based flat-panel X-ray detector was proposed. In order to develop an ultra high-sensitivity photodetector with a wide detectable wavelength range, a photodetector was fabricated using a-Se photoconductor and a nitrogen-doped diamond cold cathode. In the study, a prototype photodetector has been developed, and its response to visible and ultraviolet light are characterized.

Original language	English
Pages (from-to)	13744-13778
Number of pages	35
Journal	Sensors
Volume	13
Issue number	10
DOIs	https://doi.org/10.3390/s131013744
Publication status	Published - 2013 Oct 11

Keywords

Amorphous selenium
Carrier multiplication
Cold cathode
Diamond
Photodetector

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title = "Development of an amorphous selenium-based photodetector driven by a diamond cold cathode",

abstract = "Amorphous-selenium (a-Se) based photodetectors are promising candidates for imaging devices, due to their high spatial resolution and response speed, as well as extremely high sensitivity enhanced by an internal carrier multiplication. In addition, a-Se is reported to show sensitivity against wide variety of wavelengths, including visible, UV and X-ray, where a-Se based flat-panel X-ray detector was proposed. In order to develop an ultra high-sensitivity photodetector with a wide detectable wavelength range, a photodetector was fabricated using a-Se photoconductor and a nitrogen-doped diamond cold cathode. In the study, a prototype photodetector has been developed, and its response to visible and ultraviolet light are characterized.",

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author = "Tomoaki Masuzawa and Ichitaro Saito and Takatoshi Yamada and Masanori Onishi and Hisato Yamaguchi and Yu Suzuki and Kousuke Oonuki and Nanako Kato and Shuichi Ogawa and Yuji Takakuwa and Koh, {Angel T.T.} and Chua, {Daniel H.C.} and Yusuke Mori and Tatsuo Shimosawa and Ken Okano",

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doi = "10.3390/s131013744",

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T1 - Development of an amorphous selenium-based photodetector driven by a diamond cold cathode

AU - Masuzawa, Tomoaki

AU - Saito, Ichitaro

AU - Yamada, Takatoshi

AU - Onishi, Masanori

AU - Yamaguchi, Hisato

AU - Suzuki, Yu

AU - Oonuki, Kousuke

AU - Kato, Nanako

AU - Ogawa, Shuichi

AU - Takakuwa, Yuji

AU - Koh, Angel T.T.

AU - Chua, Daniel H.C.

AU - Mori, Yusuke

AU - Shimosawa, Tatsuo

AU - Okano, Ken

PY - 2013/10/11

Y1 - 2013/10/11

N2 - Amorphous-selenium (a-Se) based photodetectors are promising candidates for imaging devices, due to their high spatial resolution and response speed, as well as extremely high sensitivity enhanced by an internal carrier multiplication. In addition, a-Se is reported to show sensitivity against wide variety of wavelengths, including visible, UV and X-ray, where a-Se based flat-panel X-ray detector was proposed. In order to develop an ultra high-sensitivity photodetector with a wide detectable wavelength range, a photodetector was fabricated using a-Se photoconductor and a nitrogen-doped diamond cold cathode. In the study, a prototype photodetector has been developed, and its response to visible and ultraviolet light are characterized.

AB - Amorphous-selenium (a-Se) based photodetectors are promising candidates for imaging devices, due to their high spatial resolution and response speed, as well as extremely high sensitivity enhanced by an internal carrier multiplication. In addition, a-Se is reported to show sensitivity against wide variety of wavelengths, including visible, UV and X-ray, where a-Se based flat-panel X-ray detector was proposed. In order to develop an ultra high-sensitivity photodetector with a wide detectable wavelength range, a photodetector was fabricated using a-Se photoconductor and a nitrogen-doped diamond cold cathode. In the study, a prototype photodetector has been developed, and its response to visible and ultraviolet light are characterized.

KW - Amorphous selenium

KW - Carrier multiplication

KW - Cold cathode

KW - Diamond

KW - Photodetector

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DO - 10.3390/s131013744

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SP - 13744

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JO - Sensors

JF - Sensors

IS - 10

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Development of an amorphous selenium-based photodetector driven by a diamond cold cathode

Abstract

Keywords

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