Receptor function of small semiconductor crystals with clean and electron-traps dispersed surfaces

N. Yamazoe, K. Shimanoe

研究成果: Contribution to journalArticle査読

33 被引用数 (Scopus)

抄録

Theoretical exploration has been conducted to formulate the receptor function and response of a semiconductor gas sensor using thin plate-like crystals. The receptor function can be formulated over a wide range of depletion from conventional one (regional depletion) to new type one (volume depletion) by focusing attention on how the surface density of adsorbed oxygen ions (O-) is related with chemical moiety outside the crystals and physical moiety inside. The responses to gases thus derived are inversely proportional to the thickness of the plates used in the range of volume depletion. Electron-traps, if dispersed on the crystals, are shown to exert drastic effects in promoting sensitivity to gases.

本文言語英語
ページ(範囲)6148-6155
ページ数8
ジャーナルThin Solid Films
517
22
DOI
出版ステータス出版済み - 9 30 2009

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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