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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.

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


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



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.







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