English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 46962/50828 (92%)
造訪人次 : 12459134      線上人數 : 713
RC Version 6.0 © 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
    主頁登入上傳說明關於CCUR管理 到手機版


    請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/29680


    題名: 錫摻雜氧化鎵奈米結構之光電特性研究
    Studies on the optoelectronic properties of the Sn-doped Gallium oxide nanostructures
    作者: 李柏承
    Lee, Bo-Chen
    貢獻者: 化學工程與材料工程學系奈米材料碩士班
    關鍵詞: 奈米線
    熱蒸鍍法
    氧化鎵
    摻雜錫
    Thermal Evaporation
    Gallium
    Sn-doped
    Nanowire
    日期: 2015-01-14
    上傳時間: 2015-02-05 10:37:20 (UTC+8)
    摘要: 本實驗成功利用熱蒸鍍法合成出氧化鎵奈米線、氧化鎵奈米帶以及摻雜錫之氧化鎵奈米線與奈米帶四種結構。我們透過場發射掃描式電子顯微鏡(FESEM)觀察其表面形貌,再使用穿透式電子顯微鏡(TEM)以及X光繞射分析儀(XRD)分析其晶體結構和成長方向,可以發現微量摻雜錫元素並不影響主體氧化鎵的結構。而使用X光光電子能譜儀(XPS)作成分的鑑定,證明氧化鎵奈米線與奈米帶內部確實有錫摻雜。
    最後以光致激發光譜儀(PL)與電流-電壓(I-V)曲線的量測作光電性質上的分析,發現氧化鎵奈米線與奈米帶的PL發光位置上有藍移現象,再次證實兩種結構內部皆有錫的摻雜。而在電性量測結果上我們得知透過錫的摻雜,可以有效提升氧化鎵的導電特性,無論是奈米線或是奈米帶,均能使氧化鎵產生有導體的蕭特基接觸特性。
    In this study, gallium oxide nanowires, gallium oxide nanoribbon, Sn-doped Ga2O3 nanowires and Sn-doped Ga2O3 nanoribbon have been successfully synthesized by thermal evaporation. Using field emission scanning electron microscope (FESEM) to observe the surface morphology, and using transmission electron microscopy (TEM) and x-ray diffraction (XRD) to analyze the crystal structure and growth direction,we found that the main structure of gallium oxide hardly changed when slight tin was doped in. The use of x-ray photoelectron spectroscopy (XPS) for the materials identification, can prove that the gallium oxide nanostructures are within the tin doping limit,up to 10% Sn.
    Photoluminescence (PL) and current - voltage (IV) curve for the measurement of optoelectronic properties of the analysis, both Sn-doped Ga2O3 nanowires and Sn-doped Ga2O3 nanoribbon showed a blue shift in the PL spectrum, and once again confirming that gallium oxide nanowires and gallium oxide nanoribbon have been doped with tin. The resulting electrical measurements showed that the conductivity of Sn-doped gallium oxide nanostructures is the best among the pure gallium oxide nanostructures, and the connection between Ga2O3 and Ag electrode were Schottky contact.
    顯示於類別:[化學工程與材料工程學系暨碩士班] 博碩士論文

    文件中的檔案:

    檔案 大小格式瀏覽次數
    index.html0KbHTML193檢視/開啟


    在CCUR中所有的資料項目都受到原著作權保護.


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