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White light emission from a single organic molecule with dual phosphorescence at room temperature

Nature communications, 2017-09, Vol.8 (1), p.416-8, Article 416 [Peer Reviewed Journal]

2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2017 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-017-00362-5 ;PMID: 28871160

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  • Title:
    White light emission from a single organic molecule with dual phosphorescence at room temperature
  • Author: He, Zikai ; Zhao, Weijun ; Lam, Jacky W Y ; Peng, Qian ; Ma, Huili ; Liang, Guodong ; Shuai, Zhigang ; Tang, Ben Zhong
  • Subjects: Diodes ; Emission ; Emitters ; Light emission ; Phosphorescence ; Room temperature ; Temperature effects ; White light
  • Is Part Of: Nature communications, 2017-09, Vol.8 (1), p.416-8, Article 416
  • Description: The development of single molecule white light emitters is extremely challenging for pure phosphorescent metal-free system at room temperature. Here we report a single pure organic phosphor, namely 4-chlorobenzoyldibenzothiophene, emitting white room temperature phosphorescence with Commission Internationale de l'Éclair-age coordinates of (0.33, 0.35). Experimental and theoretical investigations reveal that the white light emission is emerged from dual phosphorescence, which emit from the first and second excited triplet states. We also demonstrate the validity of the strategy to achieve metal-free pure phosphorescent single molecule white light emitters by intrasystem mixing dual room temperature phosphorescence arising from the low- and high-lying triplet states.The development of single molecule white light-emitters is extremely challenging for pure phosphorescent metal-free systems at room temperature. Here the authors show a single pure organic room temperature phosphor, 4-chlorobenzoyldibenzothiophene, utilizing the emission from both T and T states.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2041-1723
    EISSN: 2041-1723
    DOI: 10.1038/s41467-017-00362-5
    PMID: 28871160
  • Source: DOAJ Directory of Open Access Journals
    PubMed Central
    ProQuest Central
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