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Issue 3, 2019
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White-light generation from all-solution-processed OLEDs using a benzothiazole–salophen derivative reactive to the ESIPT process

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Abstract

A salicylidene derivative, N,N′-bis(salicylidene)-(2-(3′,4′-diaminophenyl)benzothiazole) (BTS), reactive in the Excited State Intramolecular Proton Transfer (ESIPT) process, was synthesized and its photophysical properties were evaluated, presenting an emission covering the entire range of the visible spectrum. Due to its broad emission band, BTS was successfully tested as an active layer in solution-processed organic light-emitting diodes with white-light emission. These diodes were prepared using solution-based protocols with the dye solubilized in a poly(9-vinylcarbazole) matrix. Different guest : host (polymer : BTS) molar ratios were used to optimize the diode performance. The optimized architecture rendered the best so far all-solution-processed ESIPT OLED with a luminance of 34 cd m−2 at 13.5 V with CIE coordinates 0.31, 0.40.

Graphical abstract: White-light generation from all-solution-processed OLEDs using a benzothiazole–salophen derivative reactive to the ESIPT process

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Supplementary files

Article information


Submitted
17 Oct 2018
Accepted
27 Nov 2018
First published
27 Nov 2018

Phys. Chem. Chem. Phys., 2019,21, 1172-1182
Article type
Paper

White-light generation from all-solution-processed OLEDs using a benzothiazole–salophen derivative reactive to the ESIPT process

L. G. T. A. Duarte, J. C. Germino, J. F. Berbigier, C. A. Barboza, M. M. Faleiros, D. de Alencar Simoni, M. T. Galante, M. S. de Holanda, F. S. Rodembusch and T. D. Z. Atvars, Phys. Chem. Chem. Phys., 2019, 21, 1172
DOI: 10.1039/C8CP06485G

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