Symmetrical carbazole-fluorene-carbazole nematic liquid crystals as electroluminescent organic semiconductors.

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Title: Symmetrical carbazole-fluorene-carbazole nematic liquid crystals as electroluminescent organic semiconductors.
Authors: Hu, Guang1, Billa, Muralidhar Reddy2, Kitney, Stuart P.2 s.kitney@hull.ac.uk, Kelly, Stephen M.1
Source: Liquid Crystals. May2018, Vol. 45 Issue 7, p965-979. 15p.
Subjects: Nematic liquid crystals, Carbazole, Organic semiconductors, Fluorene, Transition temperature, Electroluminescence
Abstract: A series of novel symmetrical carbazole-fluorene-carbazoles has been synthesised using simple and highly efficient reaction pathways. The correlation between their molecular structures, differing in the length of the alkyl chains in the lateral position attached to a 2,7-disubstituted fluorene moiety in the molecular core and/or differing in the length of alkoxy chains at the terminal positions of 2,7-disubstituted carbazole moieties, was investigated. Their mesomorphic behaviour, transition temperatures, energy levels and band gaps were measured. A test organic light-emitting diode incorporating one of these compounds exhibits blue electroluminescence. [ABSTRACT FROM AUTHOR]
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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  Data: Symmetrical carbazole-fluorene-carbazole nematic liquid crystals as electroluminescent organic semiconductors.
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  Data: <searchLink fieldCode="AR" term="%22Hu%2C+Guang%22">Hu, Guang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Billa%2C+Muralidhar+Reddy%22">Billa, Muralidhar Reddy</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kitney%2C+Stuart+P%2E%22">Kitney, Stuart P.</searchLink><relatesTo>2</relatesTo><i> s.kitney@hull.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Kelly%2C+Stephen+M%2E%22">Kelly, Stephen M.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Liquid+Crystals%22">Liquid Crystals</searchLink>. May2018, Vol. 45 Issue 7, p965-979. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Nematic+liquid+crystals%22">Nematic liquid crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Carbazole%22">Carbazole</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+semiconductors%22">Organic semiconductors</searchLink><br /><searchLink fieldCode="DE" term="%22Fluorene%22">Fluorene</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+temperature%22">Transition temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Electroluminescence%22">Electroluminescence</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A series of novel symmetrical carbazole-fluorene-carbazoles has been synthesised using simple and highly efficient reaction pathways. The correlation between their molecular structures, differing in the length of the alkyl chains in the lateral position attached to a 2,7-disubstituted fluorene moiety in the molecular core and/or differing in the length of alkoxy chains at the terminal positions of 2,7-disubstituted carbazole moieties, was investigated. Their mesomorphic behaviour, transition temperatures, energy levels and band gaps were measured. A test organic light-emitting diode incorporating one of these compounds exhibits blue electroluminescence. [ABSTRACT FROM AUTHOR]
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  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: 10.1080/02678292.2017.1404156
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 965
    Subjects:
      – SubjectFull: Nematic liquid crystals
        Type: general
      – SubjectFull: Carbazole
        Type: general
      – SubjectFull: Organic semiconductors
        Type: general
      – SubjectFull: Fluorene
        Type: general
      – SubjectFull: Transition temperature
        Type: general
      – SubjectFull: Electroluminescence
        Type: general
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      – TitleFull: Symmetrical carbazole-fluorene-carbazole nematic liquid crystals as electroluminescent organic semiconductors.
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            NameFull: Hu, Guang
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            NameFull: Billa, Muralidhar Reddy
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            NameFull: Kitney, Stuart P.
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            NameFull: Kelly, Stephen M.
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            – D: 15
              M: 05
              Text: May2018
              Type: published
              Y: 2018
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              Value: 45
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