English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 50122/85141 (59%)
造訪人次 : 7885473      線上人數 : 85
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU 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://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27469


    題名: Low temperature growth of ultrananocrystalline diamond film and its field emission properties
    作者: Pradhan, D.;Lee, Y. C.;Pao, C. W.;彭維鋒;Pong, Way-faung;Lin, I. N.
    貢獻者: 淡江大學物理學系
    關鍵詞: Diamond properties and applications;Nanocrystalline diamond;Field emission
    日期: 2006-11-01
    上傳時間: 2009-12-31 10:10:44 (UTC+8)
    出版者: Elsevier
    摘要: Ultrananocrystalline diamond (UNCD) film is deposited at a substrate temperature lower than 500 °C. This film possesses diamond crystal of nanometer size embedded in a graphitic (or non-diamond carbon) phase. The presence of non-diamond carbon in the grain boundaries of diamond crystal plays a crucial role to the film properties and its corresponding application such as electron field emission. The present work reports the growth of UNCD films at different methane concentrations to alter the film properties that could make it suitable for higher electron field emission. The surface morphology of an as-grown film was examined with a field emission scanning electron microscope. Nucleation density in the range of 1011–1012/cm2 is obtained in the as-grown films. The grain size of diamond increases from 5 nm to 25 nm with an increase in CH4 concentration from 1% to 7.5% in the argon plasma. The presence of different carbon phases in the diamond films was investigated qualitatively by Raman studies. Near edge X-ray fine structure study ascertains that the as-grown films mainly possess diamond phase. A direct correlation of field emission properties with the CH4 concentration during UNCD growth is obtained.
    關聯: Diamond and Related Materials 15(11-12), pp.2001-2005
    DOI: doi:10.1016/j.diamond.2006.07.026
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    0KbUnknown251檢視/開啟
    index.html0KbHTML53檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋