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Sensors 2013, 13(10), 13744-13778; doi:10.3390/s131013744
Review

Development of an Amorphous Selenium-Based Photodetector Driven by a Diamond Cold Cathode

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Received: 19 August 2013; in revised form: 12 September 2013 / Accepted: 23 September 2013 / Published: 11 October 2013
(This article belongs to the Special Issue Photodetectors)
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.
Keywords: amorphous selenium; photodetector; carrier multiplication; diamond; cold cathode amorphous selenium; photodetector; carrier multiplication; diamond; cold cathode
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Masuzawa, T.; Saito, I.; Yamada, T.; Onishi, M.; Yamaguchi, H.; Suzuki, Y.; Oonuki, K.; Kato, N.; Ogawa, S.; Takakuwa, Y.; Koh, A.T.T.; Chua, D.H.C.; Mori, Y.; Shimosawa, T.; Okano, K. Development of an Amorphous Selenium-Based Photodetector Driven by a Diamond Cold Cathode. Sensors 2013, 13, 13744-13778.

AMA Style

Masuzawa T, Saito I, Yamada T, Onishi M, Yamaguchi H, Suzuki Y, Oonuki K, Kato N, Ogawa S, Takakuwa Y, Koh ATT, Chua DHC, Mori Y, Shimosawa T, Okano K. Development of an Amorphous Selenium-Based Photodetector Driven by a Diamond Cold Cathode. Sensors. 2013; 13(10):13744-13778.

Chicago/Turabian Style

Masuzawa, Tomoaki; Saito, Ichitaro; Yamada, Takatoshi; Onishi, Masanori; Yamaguchi, Hisato; Suzuki, Yu; Oonuki, Kousuke; Kato, Nanako; Ogawa, Shuichi; Takakuwa, Yuji; Koh, Angel T.T.; Chua, Daniel H.C.; Mori, Yusuke; Shimosawa, Tatsuo; Okano, Ken. 2013. "Development of an Amorphous Selenium-Based Photodetector Driven by a Diamond Cold Cathode." Sensors 13, no. 10: 13744-13778.



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