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Solar collectors based on luminescent 2,5-diarylimidazoles.

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Title: Solar collectors based on luminescent 2,5-diarylimidazoles.
Authors: Marianetti, Giulia1, Lessi, Marco2, Barone, Vincenzo1, Bellina, Fabio2,3 fabio.bellina@unipi.it, Pucci, Andrea2,3 andrea.pucci@unipi.it, Minei, Pierpaolo2
Source: Dyes & Pigments. Oct2018, Vol. 157, p334-341. 8p.
Subjects: Solar collectors, Luminescence, Arylation kinetics, Cyanoacrylates, Energy consumption
Abstract: We report on the synthesis of new fluorescent symmetrical 2,5-diaryl-1-methylimidazoles obtained in good yields by using direct C-H arylation synthetic strategies. Spectroscopic investigations in THF solution evidenced that the 2,5-diarylimidazole bearing the strong electron-withdrawing cyanoacrylate groups achieved the best trade-off between fluorescence maximum (518 nm), Stokes shift (115 nm) and a quantum yield of 25%. Highly homogeneous dispersions of the selected fluorophore in poly(methyl methacrylate) (PMMA) thin films (25 ± 5 μm of thickness) perfectly maintained the optical features in solution, thus providing a brilliant green emission and a markedly enhanced quantum yield of 55%. Photocurrent measurements of the PMMA collectors supported the use of 2,5-diaryl-1-methylimidazoles as accessible alternatives to perylene backbones for the development of LSC with optical efficiencies close to 7%. [ABSTRACT FROM AUTHOR]
Copyright of Dyes & Pigments is the property of Elsevier B.V. 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 129974529
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Solar collectors based on luminescent 2,5-diarylimidazoles.
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  Data: <searchLink fieldCode="AR" term="%22Marianetti%2C+Giulia%22">Marianetti, Giulia</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lessi%2C+Marco%22">Lessi, Marco</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Barone%2C+Vincenzo%22">Barone, Vincenzo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bellina%2C+Fabio%22">Bellina, Fabio</searchLink><relatesTo>2,3</relatesTo><i> fabio.bellina@unipi.it</i><br /><searchLink fieldCode="AR" term="%22Pucci%2C+Andrea%22">Pucci, Andrea</searchLink><relatesTo>2,3</relatesTo><i> andrea.pucci@unipi.it</i><br /><searchLink fieldCode="AR" term="%22Minei%2C+Pierpaolo%22">Minei, Pierpaolo</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Dyes+%26+Pigments%22">Dyes & Pigments</searchLink>. Oct2018, Vol. 157, p334-341. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Solar+collectors%22">Solar collectors</searchLink><br /><searchLink fieldCode="DE" term="%22Luminescence%22">Luminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Arylation+kinetics%22">Arylation kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Cyanoacrylates%22">Cyanoacrylates</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We report on the synthesis of new fluorescent symmetrical 2,5-diaryl-1-methylimidazoles obtained in good yields by using direct C-H arylation synthetic strategies. Spectroscopic investigations in THF solution evidenced that the 2,5-diarylimidazole bearing the strong electron-withdrawing cyanoacrylate groups achieved the best trade-off between fluorescence maximum (518 nm), Stokes shift (115 nm) and a quantum yield of 25%. Highly homogeneous dispersions of the selected fluorophore in poly(methyl methacrylate) (PMMA) thin films (25 ± 5 μm of thickness) perfectly maintained the optical features in solution, thus providing a brilliant green emission and a markedly enhanced quantum yield of 55%. Photocurrent measurements of the PMMA collectors supported the use of 2,5-diaryl-1-methylimidazoles as accessible alternatives to perylene backbones for the development of LSC with optical efficiencies close to 7%. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Dyes & Pigments is the property of Elsevier B.V. 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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    Identifiers:
      – Type: doi
        Value: 10.1016/j.dyepig.2018.04.062
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 334
    Subjects:
      – SubjectFull: Solar collectors
        Type: general
      – SubjectFull: Luminescence
        Type: general
      – SubjectFull: Arylation kinetics
        Type: general
      – SubjectFull: Cyanoacrylates
        Type: general
      – SubjectFull: Energy consumption
        Type: general
    Titles:
      – TitleFull: Solar collectors based on luminescent 2,5-diarylimidazoles.
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            NameFull: Marianetti, Giulia
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            NameFull: Lessi, Marco
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            NameFull: Barone, Vincenzo
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            NameFull: Bellina, Fabio
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            NameFull: Pucci, Andrea
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            NameFull: Minei, Pierpaolo
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              M: 10
              Text: Oct2018
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              Y: 2018
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              Value: 157
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