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Plasmonic nanoparticle arrays fabricated and modified by energetic ions for chemical sensors
http://hdl.handle.net/10212/2158
http://hdl.handle.net/10212/215837ac0f44-3bcc-4d35-b5e4-2f0d63cc4703
| 名前 / ファイル | ライセンス | アクション |
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内容・審査結果の要旨 (332.5 KB)
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全文 (2.3 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2015-03-24 | |||||||||
| タイトル | ||||||||||
| タイトル | Plasmonic nanoparticle arrays fabricated and modified by energetic ions for chemical sensors | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | エネルギーイオンによる化学センサーのためのプラズモニックナノ粒子集合体の製作と改質 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
川口, 和弘
× 川口, 和弘
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Plasmon | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ion implantation | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Sputtering | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Plasma cleaning | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Plasmonic sensor | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Plasmonic nanoparticles made of silver and gold exhibit unique optical properties due to localized surface plasmon resonance in the visible wavelength range. A plasmonic sensor is one of the most useful applications of such nanoparticles. In this thesis, energetic ion processes including ion implantation, sputtering and plasma cleaning were utilized to fabricate and modify silver or gold nanoparticle arrays for chemical sensing applications. The early chapter of this thesis describes the method to fabricate well-ordered and densely arranged silver nanoparticles buried in a thermally grown SiO2 by implanting with 350 keV silver ions. Cross-sectional transmission electron microscopy and scanning transmission electron microscopy revealed the presence of a two-dimensional array of silver nanoparticles of 25−40 nm in diameter located at a depth of ~130 nm, together with the self-organization of -layer of tiny silver nanoparticles aligned along the SiO2/Si interface. Next, a sputter deposition technique to prepare densely arranged silver nanoparticle which posses a nice plasmonic characteristic was presented and then plasma exposure was applied for cleaning the nanoparticle arrays. Plasma treatments of silver nanoparticles were found to bring about blue-shift and narrowing in their localized surface plasmon resonance. The author found that the plasmonic properties of gold nanoparticles were also altered by energetic ion irradiation and plasma exposure. Finally, the plasmonic sensing ability of gold nanoparticle for dilute cyclohexane was examined. Gold nanoparticle arrays were fabricated on SiO2 by a sputter deposition technique. The change in an extinction spectrum of gold nanoparticle arrays before and after exposure of cyclohexane vapor enabled to detect it. The gold nanoparticle array prepared by heating at 300 °C was densely arranged on the substrate and exhibited the highest sensitivity for cyclohexane. The experimentally detectable concentration of cyclohexane was as low as 0.5 vol%, much lower than its explosion limit. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2014-03-25 | |||||||||
| 日付タイプ | Issued | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第690号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（工学） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2014-03-25 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 14303 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 京都工芸繊維大学 | |||||||||
