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Novel liquid crystalline organic semiconducting oligomers incorporating N -heterocyclic carbazole moieties for fluorescent OLEDs.

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Title: Novel liquid crystalline organic semiconducting oligomers incorporating N -heterocyclic carbazole moieties for fluorescent OLEDs.
Authors: Hu, Guang1, Kitney, Stuart P.2, Kelly, Stephen M.1, Harrison, William2, O’Neill, Mary1
Source: Liquid Crystals. Sep2017, Vol. 44 Issue 11, p1632-1645. 14p.
Subjects: Organic light emitting diodes, Organic semiconductors, Oligomers, Liquid crystals, Carbazole, Electroluminescent devices, Computer-assisted molecular design, Molecular orbitals
Abstract: A novel class of nematic liquid crystalline organic semiconducting oligomers incorporatingN-heterocyclic carbazole moieties has been synthesised using simple and highly efficient reaction pathways. The electroluminescent colour of these novel oligomers can be varied in a controlled manner by molecular design. The values of the ionisation potential and the electron affinity of these electroluminescent oligomers can also be matched by structural design to the Highest Occupied Molecular Orbital (HOMO) energy level of the electron-blocking layer and the Lowest Unoccupied Molecular Orbital (LUMO) energy level of electron-transporting layer in the Organic light emitting diodes to create low charge-injection barriers for electrons and holes, respectively leading to electroluminescence with an efficacy up to 4.1 cd A−1. [ABSTRACT FROM PUBLISHER]
Copyright of Liquid Crystals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 125479695
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Novel liquid crystalline organic semiconducting oligomers incorporating N -heterocyclic carbazole moieties for fluorescent OLEDs.
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  Data: <searchLink fieldCode="JN" term="%22Liquid+Crystals%22">Liquid Crystals</searchLink>. Sep2017, Vol. 44 Issue 11, p1632-1645. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Organic+light+emitting+diodes%22">Organic light emitting diodes</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+semiconductors%22">Organic semiconductors</searchLink><br /><searchLink fieldCode="DE" term="%22Oligomers%22">Oligomers</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+crystals%22">Liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Carbazole%22">Carbazole</searchLink><br /><searchLink fieldCode="DE" term="%22Electroluminescent+devices%22">Electroluminescent devices</searchLink><br /><searchLink fieldCode="DE" term="%22Computer-assisted+molecular+design%22">Computer-assisted molecular design</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+orbitals%22">Molecular orbitals</searchLink>
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  Label: Abstract
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  Data: A novel class of nematic liquid crystalline organic semiconducting oligomers incorporatingN-heterocyclic carbazole moieties has been synthesised using simple and highly efficient reaction pathways. The electroluminescent colour of these novel oligomers can be varied in a controlled manner by molecular design. The values of the ionisation potential and the electron affinity of these electroluminescent oligomers can also be matched by structural design to the Highest Occupied Molecular Orbital (HOMO) energy level of the electron-blocking layer and the Lowest Unoccupied Molecular Orbital (LUMO) energy level of electron-transporting layer in the Organic light emitting diodes to create low charge-injection barriers for electrons and holes, respectively leading to electroluminescence with an efficacy up to 4.1 cd A−1. [ABSTRACT FROM PUBLISHER]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Liquid Crystals is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1080/02678292.2017.1306633
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 14
        StartPage: 1632
    Subjects:
      – SubjectFull: Organic light emitting diodes
        Type: general
      – SubjectFull: Organic semiconductors
        Type: general
      – SubjectFull: Oligomers
        Type: general
      – SubjectFull: Liquid crystals
        Type: general
      – SubjectFull: Carbazole
        Type: general
      – SubjectFull: Electroluminescent devices
        Type: general
      – SubjectFull: Computer-assisted molecular design
        Type: general
      – SubjectFull: Molecular orbitals
        Type: general
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      – TitleFull: Novel liquid crystalline organic semiconducting oligomers incorporating N -heterocyclic carbazole moieties for fluorescent OLEDs.
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            NameFull: Hu, Guang
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            NameFull: Kitney, Stuart P.
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            NameFull: Kelly, Stephen M.
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            NameFull: Harrison, William
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            – D: 01
              M: 09
              Text: Sep2017
              Type: published
              Y: 2017
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              Value: 44
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