English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 94201/94201 (100%)
造訪人次 : 81699049      線上人數 : 3464
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: https://ir.lib.ncu.edu.tw/handle/987654321/100382


    題名: Low-temperature phase transition of ZnS: The critical role of ZnO
    作者: 李岱洲;Lin, Po-Chang;Hua, Chi Chung;Lee, Tai-Chou
    貢獻者: 工學院化學工程與材料工程學系
    關鍵詞: Annealing;Chemical synthesis methods;Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder;Cross-disciplinary physics: materials science;rheology;Exact sciences and technology;GRAIN SIZE;Heterostructure;Hexagonal ZnS;INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;Materials science;Methods of nanofabrication;Nanoparticle;Nanopowders;Nanoscale materials and structures: fabrication and characterization;PARTICLES;Phase diagrams and microstructures developed by solidification and solid-solid phase transformations;Phase transformation;PHASE TRANSFORMATIONS;Physics;POWDERS;SEMICONDUCTOR MATERIALS;Semiconductors;Solid phases;STABILITY;Thermodynamic stability;Transforms;TRANSITION TEMPERATURE;Wurtzite ZnS;Zinc oxide;ZINC OXIDES;ZINC SULFIDES
    日期: 2012-10-01
    上傳時間: 2026-04-21 13:59:55 (UTC+8)
    出版者: Academic Press Inc.;Amsterdam: Elsevier Inc
    摘要: 摘要: Wurtzite zinc sulfide (WZ-ZnS) is a valuable wide-band-gap semiconductor. However, it is difficult to synthesize due to its high transition temperature (1020°C). This study investigates the formation of WZ-ZnS particles using a ZnO template. Various phase structures of ZnS with the same size but different levels of ZnO content are generated during the annealing process. The transition temperature can be lowered significantly to below 350°C. Furthermore, when the powders of ZnO and zinc-blende ZnS are mixed, large ZnS particles are not induced by ZnO to transform into WZ-ZnS. The results strongly suggest that grain size is an essential but not sufficient factor in the formation of WZ-ZnS at lower temperatures. By controlling pH of the precursor, wurtzite ZnS particles can be generated at ∼350°C. The ZnO-template mechanism was proposed and discussed. [Display omitted] ► Wurtzite ZnS particles were prepared by using simple wet chemistry. ► pH of the precursor solution was adjusted to decrease the phase transition temperature of ZnS. ► ZnO-template-inducing mechanism of ZnS phase transition was proposed and discussed.
    出版者: Amsterdam: Elsevier Inc
    出版日期: 2012-10-01
    出處: Journal of solid state chemistry, 2012-10, Vol.194, p.282-285
    版權: 2012 Elsevier Inc.
    版權: 2014 INIST-CNRS
    識別號: ISSN: 0022-4596
    識別號: EISSN: 1095-726X
    識別號: DOI: 10.1016/j.jssc.2012.05.017
    識別號: CODEN: JSSCBI
    顯示於類別:[化學工程與材料工程學系 ] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML12檢視/開啟


    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