Chapran, Marian
Angioni, Enrico
Findlay, Neil J.
Breig, Benjamin
Cherpk, Vladyslav
Stakhira, Pavlo
Tuttle, Tell
Volyniuk, Dmytro
Grazulevicius, Juozas V.
Nastishin, Yuriy A.
Lavrentovich, Oleg D.
Skabara, Peter J.
2017-01-12
<p>A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of 3.3 × 10<sup>-4</sup> and 2 × 10<sup>-4</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup>, respectively, at electric fields higher than 5.3 × 10<sup>5</sup> V cm<sup>-1</sup>. The resulting WOLED exhibited a maximum luminance of 6579 cd m<sup>-2</sup> with CIE 1931 color coordinates (0.39; 0.35). The bThBODIPY dye is also demonstrated to be an effective laser dye for a cholesteric liquid crystal (ChLC) laser. New construction of the ChLC laser, by which a flat capillary with an optically isotropic dye solution is sandwiched between two dye-free ChLC cells, provides photonic lasing at a wavelength well matched with that of a dye-doped planar ChLC cell.</p>
https://doi.org/10.1021/acsami.6b13689
oai:zenodo.org:438642
Zenodo
https://strathprints.strath.ac.uk/60334/
https://doi.org/10.15129/dd4e4a3b-71a9-4cd2-a640-61b8ab54eead
https://zenodo.org/communities/eu
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
ACS Applied Materials and Interfaces, 9(5), 4750-4757, (2017-01-12)
BODIPY dye
cholesteric liquid crystal laser
exciplex
organic light-emitting diodes (OLEDs)
white light
An ambipolar BODIPY derivative for a white exciplex OLED and cholesteric liquid crystal laser toward multifunctional devices
info:eu-repo/semantics/article