English  |  正體中文  |  简体中文  |  Items with full text/Total items : 74010/74010 (100%)
Visitors : 24011083      Online Users : 455
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/65239

    Title: 以奈米球微影術製作表面電漿增強拉曼基板;Surface enhanced Raman active substrate fabricated by nanosphere lithographic technique
    Authors: 李展進;Li,Chan-chin
    Contributors: 光電科學與工程學系
    Keywords: 奈米球微影術;周期性銀粒子陣列;表面增強拉曼散射;表面電漿共振;nanosphere lithographic technique;periodic particle array;Surface Enhanced Raman Scattering;Surface Plasmon Resonance
    Date: 2014-08-20
    Issue Date: 2014-10-15 14:44:29 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本論文以奈米球微影術製作週期性銀粒子陣列之表面增強拉曼散射基板。首先藉由文獻得知改變週期性銀粒子的大小、結構高度及形狀等各類製程參數,其共振波長位移之趨勢。實驗上以加熱基板的方式,使銀粒子形狀改變並量測其吸光譜,得到共振波長紅移並與文獻相符;另外選用銀粒子陣列共振波長與綠光雷射波長相近的位置進行拉曼量測,且明顯得到R6G分子的拉曼光譜訊號,證明此結構有足夠的增強能力且適用於分子檢測上;最後利用TCSPC系統量測R6G在不同基板上的螢光生命期並探討其與增強係數的關係;Surface enhanced Raman scattering (SERS) active silver periodic particle array (PPA) substrates are fabricated by nanosphere lithographic technique. Base on the reported results in literatures, the shift of plasmon resonance wavelength can be manipulated via varying the fabrication parameters such as particle size, thickness and shape. Experimentally, thermally induced shape change was observed which results in the red shift of the resonant wavelength. The result is in close agreement with that obtained by Van Duyne. In addition, a local site on the PPA with resonance wavelength close to =532 nm was chosen to examine the resonant Raman response from model molecule Rhodamine 6G (R6G). The measured Raman spectrum, clearly reveals the vibrational fingerprint of the R6G molecule, demonstrating the enhancement capability of the fabricated substrate for molecular analysis substrate. Finally, fluorescence life time measurement of R6G on various substrates was conducted by TCSPC system, with the aim to justify the interplay between substrate quenching effect and the enhancement factor of R6G.
    Appears in Collections:[光電科學研究所] 博碩士論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明