Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative

Pander, Piotr Henryk; Swist, Agnieszka; Turczyn, Roman Maria; Pouget, Stéphanie; Djurado, David; Lazauskas, Algirdas; Pashazadeh, Ramin; Grazulevicius, Juozas Vidas; Motyka, Radoslaw; Klimash, Anastasia; Skabara, Peter; Data, Przemyslaw; Sołoducho, Jadwiga; Dias, Fernando B.

doi:10.1021/acs.jpcc.8b08329

Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative

Pander, Piotr Henryk; Swist, Agnieszka; Turczyn, Roman Maria; Pouget, Stéphanie; Djurado, David; Lazauskas, Algirdas; Pashazadeh, Ramin; Grazulevicius, Juozas Vidas; Motyka, Radoslaw; Klimash, Anastasia; Skabara, Peter; Data, Przemyslaw; Sołoducho, Jadwiga; Dias, Fernando B.

Authors

Piotr Henryk Pander

Agnieszka Swist

Roman Maria Turczyn

Stéphanie Pouget

David Djurado

Algirdas Lazauskas

Ramin Pashazadeh

Juozas Vidas Grazulevicius

Radoslaw Motyka

Anastasia Klimash

Peter Skabara

Przemyslaw Data

Jadwiga Sołoducho

Dr Fernando Dias f.m.b.dias@durham.ac.uk
Associate Professor

Abstract

Thianthrenes have been nearly forgotten as phosphors in recent years, but are now coming back, showing their strong potential in luminescent applications. Here, we present a comprehensive photophysical study of a carbazolyl derivative of thianthrene in different matrices and environments. The diffusion of oxygen is slowed down in the rigid environment of thianthrene organic crystals suppressing their phosphorescence quenching, as well as triplet-triplet annihilation. This facilitates the observation of simultaneous fluorescence and phosphorescence emissions at room temperature, in air, giving origin to strong white luminescence. Moreover, the color coordinates of the dual fluorescence-phosphorescence white emission, which is observed only in rigid amorphous media and in crystals, can be tuned.

Citation

Pander, P. H., Swist, A., Turczyn, R. M., Pouget, S., Djurado, D., Lazauskas, A., …Dias, F. B. (2018). Observation of Dual Room Temperature Fluorescence-Phosphorescence in Air, in the Crystal Form of a Thianthrene Derivative. Journal of Physical Chemistry C, 122(43), 24958-24966. https://doi.org/10.1021/acs.jpcc.8b08329

Journal Article Type	Article
Acceptance Date	Oct 9, 2018
Online Publication Date	Oct 9, 2018
Publication Date	Nov 1, 2018
Deposit Date	Oct 15, 2018
Publicly Available Date	Oct 9, 2019
Journal	Journal of Physical Chemistry C
Print ISSN	1932-7447
Electronic ISSN	1932-7455
Publisher	American Chemical Society
Peer Reviewed	Peer Reviewed
Volume	122
Issue	43
Pages	24958-24966
DOI	https://doi.org/10.1021/acs.jpcc.8b08329

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Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.8b08329.