Intermolecular interactions in molecular crystals and their effect on thermally activated delayed fluorescence of helicene-based emitters
Intermolecular interactions in molecular crystals and their effect on thermally activated delayed fluorescence of helicene-based emitters
Here, we discuss the influence of the crystal structure on the photophysical properties of two new TADF emitters containing a non-planar helical moiety. The presence of solvent in the crystal lattice of a diaza[5]helicene-based compound alters molecular packing significantly and suppresses aggregation. This results in more intense TADF emission and an increase in PLQY. Solution-processed OLED devices gave a maximum external quantum efficiency of 7.1%.
10557-10568
Kilmarsh, Anastasia
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Pander, Piotr
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Klooster, Wim
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Coles, Simon J.
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Przemyslaw, Data
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Data, Fernando B.
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Skabara, Peter J.
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21 October 2018
Kilmarsh, Anastasia
5c948d05-c985-4960-bd51-4ae1b2095da6
Pander, Piotr
d9a6279b-51e0-4d38-852d-37d848c2cd01
Klooster, Wim
64dc0111-f415-4226-9189-45764c0933d9
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Przemyslaw, Data
65fb03e9-c82b-495d-a25b-dd801daf75a0
Data, Fernando B.
27fe08d2-4fcf-4ba8-aeaa-07eee0ece7a8
Skabara, Peter J.
bd458a7b-ca16-47a7-828e-1e35db28ae95
Kilmarsh, Anastasia, Pander, Piotr, Klooster, Wim, Coles, Simon J., Przemyslaw, Data, Data, Fernando B. and Skabara, Peter J.
(2018)
Intermolecular interactions in molecular crystals and their effect on thermally activated delayed fluorescence of helicene-based emitters.
Journal of Materials Chemistry C, 2018 (6), .
(doi:10.1039/C8TC03390K).
Abstract
Here, we discuss the influence of the crystal structure on the photophysical properties of two new TADF emitters containing a non-planar helical moiety. The presence of solvent in the crystal lattice of a diaza[5]helicene-based compound alters molecular packing significantly and suppresses aggregation. This results in more intense TADF emission and an increase in PLQY. Solution-processed OLED devices gave a maximum external quantum efficiency of 7.1%.
Text
c8tc03390k
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Accepted/In Press date: 11 September 2018
e-pub ahead of print date: 12 September 2018
Published date: 21 October 2018
Identifiers
Local EPrints ID: 425555
URI: http://eprints.soton.ac.uk/id/eprint/425555
ISSN: 2050-7526
PURE UUID: 5dd6ec45-8934-4076-b450-6044344ad7df
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Date deposited: 24 Oct 2018 16:30
Last modified: 16 Mar 2024 03:06
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Author:
Anastasia Kilmarsh
Author:
Piotr Pander
Author:
Wim Klooster
Author:
Data Przemyslaw
Author:
Fernando B. Data
Author:
Peter J. Skabara
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