淡江大學機構典藏:Item 987654321/115556
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 57042/90725 (63%)
Visitors : 12440624      Online Users : 74
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115556


    Title: Probe exciplex structure of highly efficient thermally activated delayed fluorescence organic light emitting diodes
    Authors: Lin, Tzu-Chieh;Sarma, Monima;Chen, Yi-Ting;Liu, Shih-Hung;Lin, Ke-Ting;Chiang, Pin-Yi;Chuang, Wei-Tsung;Liu, Yi-Chen;Hsu, Hsiu-Fu;Hung, Wen-Yi;Tang, Wei-Chieh;Wong, Ken-Tsung;Chou, Pi-Tai
    Date: 2018-08-06
    Issue Date: 2018-11-08 12:11:58 (UTC+8)
    Publisher: Springer Nature Limited
    Abstract: The lack of structural information impeded the access of efficient luminescence for the exciplex type thermally activated delayed fluorescence (TADF). We report here the pump-probe Step-Scan Fourier transform infrared spectra of exciplex composed of a carbazole-based electron donor (CN-Cz2) and 1,3,5-triazine-based electron acceptor (PO-T2T) codeposited as the solid film that gives intermolecular charge transfer (CT), TADF, and record-high exciplex type cyan organic light emitting diodes (external quantum efficiency: 16%). The transient infrared spectral assignment to the CT state is unambiguous due to its distinction from the local excited state of either the donor or the acceptor chromophore. Importantly, a broad absorption band centered at ~2060 cm−1 was observed and assigned to a polaron-pair absorption. Time-resolved kinetics lead us to conclude that CT excited states relax to a ground-state intermediate with a time constant of ~3 µs, followed by a structural relaxation to the original CN-Cz2:PO-T2T configuration within ~14 µs.
    Relation: Nature Communications 9, p.3111
    DOI: 10.1038/s41467-018-05527-4
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML86View/Open
    Probe exciplex structure of highly efficient thermally activated delayed fluorescence organic light emitting diodes.pdf1075KbAdobe PDF0View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.


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