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A highly luminous sky-blue organic light emitting diodes based on the bis-[(1,2)(5,6)]indoloanthracene emissive layer

A highly luminous sky-blue organic light emitting diodes based on the bis-[(1,2)(5,6)]indoloanthracene emissive layer
A highly luminous sky-blue organic light emitting diodes based on the bis-[(1,2)(5,6)]indoloanthracene emissive layer
An in-depth analysis of the electro-optical and light emissive properties was carried out with a new fused heteroacene, the bis [(1,2)(5,6)] indoloanthracene. The compound was synthesized in a straightforward bidirectional manner from 1,4-dibromo-2,5-diodobenzene utilizing a reaction cascade of isomerisation and cyclisation sequences. Bis-[(1,2)(5,6)] indoloanthracene exhibits bright luminescence with high quantum yield in solution as well as in the solid state. By using this novel semiconductor as active layer, an efficient OLED has been fabricated for which its emission pattern resembles at least two emitters in a single emissive region originated from the same molecule. One has its origin from the single molecule and is similar to the luminescence spectra in solution, whereas the other functions through the formation of aggregates being similar with the emission pattern found with crystals of bis-[(1,2)(5,6)]indoloanthracene. As a result bright sky-blue OLEDs with very high luminance exceeding 10000 cd/m2 were obtained. Such color pattern and performance has not previously been observed with low molecular weight, electron-rich fused polycyclic aromatic compounds and indicate a promising new class of materials for development.
1932-7447
6206-6217
Ivaniuk, Khrystyna
a82a271b-1b1e-4907-9643-c8d3e083f164
Cherpak, Vladyslav
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Stakhira, Pavlo
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Hotra, Zenon
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Minaev, Boris F.
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Baryshnikov, Gleb V.
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Stromylo, Evgeniy
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Volyniuk, Dmytro
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Grazulevicius, Juozas Vidas
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Lazauskas, Algirdas
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Tamulevicius, Sigitas
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Witulski, Bernhard
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Light, Mark E.
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Gawrys, Pawel
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Whitby, Richard J
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Wiosna-Sałyga, Gabriela
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Luszczynska, Beata
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Ivaniuk, Khrystyna
a82a271b-1b1e-4907-9643-c8d3e083f164
Cherpak, Vladyslav
65809e96-9b74-4984-bb13-d9b84a53f89c
Stakhira, Pavlo
ad55f568-6860-40c8-9a10-1034e5481bd7
Hotra, Zenon
0027a202-e8dd-4a98-8fc4-0f14c73bdc58
Minaev, Boris F.
b3f9e529-f52d-4a38-88d7-7f609de464e7
Baryshnikov, Gleb V.
de2f286f-fd56-419f-a6fb-aa23abd22a83
Stromylo, Evgeniy
b76c7933-dc53-439f-8865-3201eed34ad5
Volyniuk, Dmytro
2c451a48-73fa-4de4-908e-1512e4d9797e
Grazulevicius, Juozas Vidas
efde2d02-4b7e-4183-abb9-613384328635
Lazauskas, Algirdas
43d90ad4-b3b2-4d01-98f8-6b4580f1ab6e
Tamulevicius, Sigitas
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Witulski, Bernhard
ffcefb33-a31d-489b-bc5a-f156961c57b9
Light, Mark E.
cf57314e-6856-491b-a8d2-2dffc452e161
Gawrys, Pawel
aee47942-6668-4d00-96d7-3c89f7d4bcfe
Whitby, Richard J
45632236-ab00-4ad0-a02d-6209043e818b
Wiosna-Sałyga, Gabriela
0c834f7a-af13-4629-9403-027ac20e5a25
Luszczynska, Beata
e1756eb5-7f8f-4c54-9c08-93e67d2c2626

Ivaniuk, Khrystyna, Cherpak, Vladyslav, Stakhira, Pavlo, Hotra, Zenon, Minaev, Boris F., Baryshnikov, Gleb V., Stromylo, Evgeniy, Volyniuk, Dmytro, Grazulevicius, Juozas Vidas, Lazauskas, Algirdas, Tamulevicius, Sigitas, Witulski, Bernhard, Light, Mark E., Gawrys, Pawel, Whitby, Richard J, Wiosna-Sałyga, Gabriela and Luszczynska, Beata (2016) A highly luminous sky-blue organic light emitting diodes based on the bis-[(1,2)(5,6)]indoloanthracene emissive layer. The Journal of Physical Chemistry C, 120 (11), 6206-6217. (doi:10.1021/acs.jpcc.6b00696).

Record type: Article

Abstract

An in-depth analysis of the electro-optical and light emissive properties was carried out with a new fused heteroacene, the bis [(1,2)(5,6)] indoloanthracene. The compound was synthesized in a straightforward bidirectional manner from 1,4-dibromo-2,5-diodobenzene utilizing a reaction cascade of isomerisation and cyclisation sequences. Bis-[(1,2)(5,6)] indoloanthracene exhibits bright luminescence with high quantum yield in solution as well as in the solid state. By using this novel semiconductor as active layer, an efficient OLED has been fabricated for which its emission pattern resembles at least two emitters in a single emissive region originated from the same molecule. One has its origin from the single molecule and is similar to the luminescence spectra in solution, whereas the other functions through the formation of aggregates being similar with the emission pattern found with crystals of bis-[(1,2)(5,6)]indoloanthracene. As a result bright sky-blue OLEDs with very high luminance exceeding 10000 cd/m2 were obtained. Such color pattern and performance has not previously been observed with low molecular weight, electron-rich fused polycyclic aromatic compounds and indicate a promising new class of materials for development.

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Submitted date: 21 January 2016
Accepted/In Press date: 2 March 2016
e-pub ahead of print date: 3 March 2016
Published date: 24 March 2016
Organisations: Organic Chemistry: Synthesis, Catalysis and Flow

Identifiers

Local EPrints ID: 389698
URI: http://eprints.soton.ac.uk/id/eprint/389698
ISSN: 1932-7447
PURE UUID: 8039819d-4970-47a0-bbe4-e61a3281cce7
ORCID for Mark E. Light: ORCID iD orcid.org/0000-0002-0585-0843
ORCID for Richard J Whitby: ORCID iD orcid.org/0000-0002-9891-5502

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Date deposited: 14 Mar 2016 10:40
Last modified: 15 Mar 2024 05:25

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Contributors

Author: Khrystyna Ivaniuk
Author: Vladyslav Cherpak
Author: Pavlo Stakhira
Author: Zenon Hotra
Author: Boris F. Minaev
Author: Gleb V. Baryshnikov
Author: Evgeniy Stromylo
Author: Dmytro Volyniuk
Author: Juozas Vidas Grazulevicius
Author: Algirdas Lazauskas
Author: Sigitas Tamulevicius
Author: Bernhard Witulski
Author: Mark E. Light ORCID iD
Author: Pawel Gawrys
Author: Gabriela Wiosna-Sałyga
Author: Beata Luszczynska

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