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

• 中野 匡規

• Nakano Masaki

• 牧野 哲征

• Makino Takayuki

• 塚崎 敦

• Tsukazaki Atsushi

• 上野 和紀

• Ueno Kazunori

• 大友 明

• Ohtomo Akira

• 福村 知昭

• Fukumura Tomoteru

• 湯地 洋行

• Yuji Hiroyuki

• 赤坂 俊輔

• Akasaka Syunsuke

• 田村 謙太郎

• Tamura Kentaro

• 中原 健

• Nakahara Ken

• 田辺 哲弘

• Tanabe Tetsuhiro

• 神澤 公

• Kamisawa Akira

• 川崎 雅司

• Kawasaki Masashi

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 10(3) 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 x 10(14) cm Hz(1/2)/W at 370 nm.

Journal

• Applied Physics Letters

  Applied Physics Letters 93 (12), 2008-09

Details

• CRID: 1574231877538252160
• NII Article ID: 120006581925
• ISSN: 00036951
• Web Site: http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100608890
• Text Lang: en
• Data Source:
  • CiNii Articles