English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 80990/80990 (100%)
造訪人次 : 42171192      線上人數 : 729
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/7515


    題名: none Exploration of new methods for growing Ag films on Au(111) studied by ARPES
    作者: 蔡季廷;Chi-Ting Tsai
    貢獻者: 物理研究所
    關鍵詞: 量子井;Ag/Au(111) quantum well state
    日期: 2007-07-06
    上傳時間: 2009-09-22 10:59:11 (UTC+8)
    出版者: 國立中央大學圖書館
    摘要: 薄膜系統在工業科技上或是科學研究上都扮演著重要的角色,然而製備大尺度平坦薄膜卻不是件容易的事,我們的動機是尋找一個方法能製備大尺度平坦薄膜。我們所採用的系統是Ag/Au(111)系統,電子被限制在銀薄膜裡或是表面上形成量子化的能態,利用角度解析光電子能譜術與量子化能態對厚度上的關係來解析薄膜厚度上的分佈。 我們所採取製備薄膜的方法為在低溫下蒸鍍銀原子,並且緩慢回溫至接近室溫,在銀薄膜厚度較小的情況下,可使用表面態來解析厚度上的分佈,在銀薄膜較厚的情況下因表面態對厚度的變化量很小,需藉著其他量子態來解析厚度。實驗結果顯示低溫下蒸鍍再回溫的方法是一個製備平坦薄膜的方法,在回溫的過程中,觀察角度解析光電子能譜我們發現一些有趣的新現象,並嘗試用物理模型來解釋。 Thin film systems play important roles in technology industry and scientific investigation. However, preparing atomically flat thin films over a macroscopic region is not an easy thing. Our motivation is trying to find a new method for growing flat thin films over a macroscopic region. The system in our investigation we used is Ag/A2u(111) quantum well system. Electron confinement inside Ag films causes quantization of electronic energy states. We use angle resolved photoelectron spectroscopy to investigate the thickness variation of thin films. The method we adopted is low temperature deposition and annealing to near room temperature. In the low coverage case, it could use the surface state to resolve the thickness variation. However in the high coverage case, it must use quantum well states to resolve. The results of our experiments show that low temperature deposition and annealing process is a good way to prepare flat thin films. The photoelectron spectra at different temperature measured during the annealing process shows some interesting physical phenomenon. We have a physical model to explain this phenomenon.
    顯示於類別:[物理研究所] 博碩士論文

    文件中的檔案:

    檔案 大小格式瀏覽次數


    在NCUIR中所有的資料項目都受到原著作權保護.

    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 ©   - 隱私權政策聲明