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Fabrication and Characterisation of Organic EL Devices in the Presence of Cyclodextrin as an Interlayer

Hara, Michihiro ; Umeda, Takao ; Kurata, Hiroyuki

Sensors (Basel, Switzerland), 2021-05, Vol.21 (11), p.3666 [Periódico revisado por pares]

Switzerland: MDPI AG

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  • Título:
    Fabrication and Characterisation of Organic EL Devices in the Presence of Cyclodextrin as an Interlayer
  • Autor: Hara, Michihiro ; Umeda, Takao ; Kurata, Hiroyuki
  • Assuntos: Communication ; cyclodextrin polymer ; Cyclodextrins ; Efficiency ; Electroluminescence ; Emission spectra ; Energy conservation ; energy saving applications ; Fluorescence ; Glass substrates ; interlayer ; Interlayers ; Light ; Light emission ; Lithium fluoride ; Organic chemistry ; organic EL ; Polymers
  • É parte de: Sensors (Basel, Switzerland), 2021-05, Vol.21 (11), p.3666
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: This study examined glass-based organic electroluminescence in the presence of a cyclodextrin polymer as an interlayer. Glass-based organic electroluminescence was achieved by the deposition of five layers of N,N'-Bis(3-methylphenyl)N,N'-bis(phenyl)-benzidine, cyclodextrin polymer (CDP), tris-(8-hydroxyquinolinato) aluminium LiF and Al on an indium tin oxide-coated glass substrate. The glass-based OEL exhibited green emission owing to the fluorescence of tris-(8-hydroxyquinolinato) aluminium. The highest luminance was 19,620 cd m . Moreover, the glass-based organic electroluminescence device showed green emission at 6 V in the curved state because of the inhibited aggregation of the cyclodextrin polymer. All organic molecules are insulating, but except CDP, they are standard molecules in conventional organic electroluminescence devices. In this device, the CDP layer contained pores that could allow conventional organic molecules to enter the pores and affect the organic electroluminescence interface. In particular, self-association was suppressed, efficiency was improved, and light emission was observed without the need for a high voltage. Overall, the glass-based organic electroluminescence device using CDP is an environmentally friendly device with a range of potential energy saving applications.
  • Editor: Switzerland: MDPI AG
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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