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Issue 15, 2018
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Pyrenyl substituted 1,8-naphthalimide as a new material for weak efficiency-roll-off red OLEDs: a theoretical and experimental study

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Abstract

Based on the theoretical calculations of excited states and semiconducting properties, a new 1,8-naphthalimide derivative having an electron-donating 1-pyrenyl group at the C-4 position was designed and synthesized. This derivative exhibited an excellent thermal stability and bipolar charge carrier transport ability. It was successfully utilized as a host in red phosphorescent organic light-emitting diodes showing an efficient energy transfer from the host to the phosphorescent emitter. The derivative may be a single material electroplex-forming host for PhOLEDs. The best fabricated red emitting device demonstrated maximum current, power, and external quantum efficiencies of 10.8 cd A−1, 7 lm W−1, and 13.6%, respectively. The best device exhibited a high brightness of 15 300 cd m−2 and weak efficiency-roll-off.

Graphical abstract: Pyrenyl substituted 1,8-naphthalimide as a new material for weak efficiency-roll-off red OLEDs: a theoretical and experimental study

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Article information


Submitted
17 Apr 2018
Accepted
15 Jun 2018
First published
27 Jun 2018

New J. Chem., 2018,42, 12492-12502
Article type
Paper

Pyrenyl substituted 1,8-naphthalimide as a new material for weak efficiency-roll-off red OLEDs: a theoretical and experimental study

O. Bezvikonnyi, D. Gudeika, D. Volyniuk, J. V. Grazulevicius and G. Bagdziunas, New J. Chem., 2018, 42, 12492
DOI: 10.1039/C8NJ01866A

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