Presentation 2012-01-27
Gas sensing with Local plasmon resonance
Manami OTA, Bin CHEN, Kenshi HAYAHSI,
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Abstract(in English) Robots equipped with gas sensors have already been studied and applied for detecting the gas distribution or determining the gas source. Because the purpose of this kind of robots is to recognize the environment condition while their moving, a fast and compact gas sensing device is required. However, the response time of the conventional gas sensors are too long for the robot application. For example, the response time of semiconductor gas sensor is in a few minutes. Based on this fact, we focused on the localized plasmon phenomenon of noble metal nanoparticles (NPs), and developed a gas sensor which responses within a second. In this report, aims to increase the sensitivity of NPs, (1) the relationship between the preparation condition and the optical properties of NPs, (2) the difference between AuNPs and AgNPs, (3) the effect of thermal annealing treatment, (4) the effect of Au colloid surface modification are examined. As a result, fast response of all NPs, the large sensitivity of non annealed AgNPs, and the sharp resonance of annealed NPs are obtained.
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Keyword(in English) localized Plasmon / gas sensor / fast response gas sensor / noble metal nanoparticles
Paper # MBE2011-79
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Conference Information
Committee MBE
Conference Date 2012/1/20(1days)
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Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Gas sensing with Local plasmon resonance
Sub Title (in English)
Keyword(1) localized Plasmon
Keyword(2) gas sensor
Keyword(3) fast response gas sensor
Keyword(4) noble metal nanoparticles
1st Author's Name Manami OTA
1st Author's Affiliation Graduate School and Faculty of Information Science and Electrical Engineering, Kyushu University()
2nd Author's Name Bin CHEN
2nd Author's Affiliation Graduate School and Faculty of Information Science and Electrical Engineering, Kyushu University
3rd Author's Name Kenshi HAYAHSI
3rd Author's Affiliation Graduate School and Faculty of Information Science and Electrical Engineering, Kyushu University
Date 2012-01-27
Paper # MBE2011-79
Volume (vol) vol.111
Number (no) 423
Page pp.pp.-
#Pages 6
Date of Issue