English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 59160/92571 (64%)
造訪人次 : 740559      線上人數 : 41
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/987654321/98513

    題名: Analyzing nanostructures in mesogenic host–guest systems for polarized phosphorescence
    作者: Tsai, Yu-Tang;Chen, Chien-Yu;Chen, Li-Yin;Liu, Su-Hao;Wu, Chung-Chih;Chi, Yun;Chen, Shaw H.;Hsu, Hsiu-Fu;Lee, Jey-Jau
    貢獻者: 淡江大學化學學系
    關鍵詞: OLEDs;Phosphorescence;Polarized emission;Liquid crystal;GIXS
    日期: 2014-01
    上傳時間: 2014-08-09 16:38:58 (UTC+8)
    出版者: Amsterdam: Elsevier BV * North-Holland
    摘要: Feasibility of polarized phosphorescent organic light-emitting devices (OLEDs) had been previously demonstrated by combining a discotic Pt(II) complex with a glassy-nematic oligofluorene host to form a mesogenic host–guest phosphorescent emitting system. Previous photophysical studies suggested that in the host–guest film, the Pt(II) complex tended to aggregate into columnar stacks, exhibiting metal–metal-to-ligand charge transfer (MMLCT) emission. Both host molecules and guest aggregates in the host–guest films could be oriented by a conductive alignment layer, giving rise to polarized phosphorescence from the Pt(II) aggregates. Nevertheless, film morphologies and nanostructures of the mesogenic host–guest systems have remained to be elucidated. In this work, grazing incidence X-ray scattering (GIXS) was carried out to analyze nanostructures in both neat films of the discotic Pt(II) complex and mesogenic host–guest mixture films. In addition, confocal laser scanning microscopy (CLSM) was also utilized for visualization of the morphologies of mesogenic host–guest systems. The columnar axes of nanostructured Pt(II) stacks lying on the alignment-treated surfaces were found to be preferentially oriented perpendicular to the rubbing direction, which is responsible for the observed linearly polarized phosphorescence.
    關聯: Organic Electronics 15(1), pp.311–321
    DOI: 10.1016/j.orgel.2013.11.025
    顯示於類別:[化學學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數



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