2014年6月
Novel photoexcitation method for light-addressable potentiometric sensor with higher spatial resolution
APPLIED PHYSICS EXPRESS
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- 巻
- 7
- 号
- 6
- 開始ページ
- 1467
- 終了ページ
- 1472
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7567/APEX.7.067301
- 出版者・発行元
- IOP PUBLISHING LTD
A novel photoexcitation method for the light-addressable potentiometric sensor (LAPS) is proposed to achieve a higher spatial resolution of chemical images. The proposed method employs a combined light source that consists of a modulated light probe, which generates the altemating photocurrent signal, and a ring of constant illumination surrounding it. The constant illumination generates a sheath of carriers with increased concentration which suppresses the spread of photocarriers by enhanced recombination. A device simulation was carried out to verify the effect of constant illumination on the spatial resolution, which demonstrated that a higher spatial resolution can be obtained. (C) 2014 The Japan Society of Applied Physics
- リンク情報
- ID情報
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- DOI : 10.7567/APEX.7.067301
- ISSN : 1882-0778
- eISSN : 1882-0786
- Web of Science ID : WOS:000338692500046