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

Research output: Contribution to journalReview article

27 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 languageEnglish
Pages (from-to)13744-13778
Number of pages35
JournalSensors (Switzerland)
Volume13
Issue number10
DOIs
Publication statusPublished - 2013 Oct 11

Keywords

  • Amorphous selenium
  • Carrier multiplication
  • Cold cathode
  • Diamond
  • Photodetector

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Development of an amorphous selenium-based photodetector driven by a diamond cold cathode'. Together they form a unique fingerprint.

  • Cite this

    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. (2013). Development of an amorphous selenium-based photodetector driven by a diamond cold cathode. Sensors (Switzerland), 13(10), 13744-13778. https://doi.org/10.3390/s131013744