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Media type:
E-Article
Title:
Impact of Fabrication Processes of Small-Molecule-Doped Polymer Thin-Films on Room-Temperature Phosphorescence
Contributor:
Thomas, Heidi;
Haase, Katherina;
Achenbach, Tim;
Bärschneider, Toni;
Kirch, Anton;
Talnack, Felix;
Mannsfeld, Stefan C. B.;
Reineke, Sebastian
imprint:
Frontiers Media SA, 2022
Published in:Frontiers in Physics
Language:
Not determined
DOI:
10.3389/fphy.2022.841413
ISSN:
2296-424X
Origination:
Footnote:
Description:
<jats:p>The development of organic materials displaying room-temperature phosphorescence is a research field that has attracted more and more attention in the last years. Most studies focus on designing or optimizing emitter molecules to increase the phosphorescent performance in host:emitter systems. Rarely, the overall thin-film preparation routines are compared with respect to their triplet-state luminescence yield. Herein, different film preparation techniques are investigated using the very same emitter molecule. A variation of host polymer, post-annealing temperature, and fabrication procedure is evaluated with respect to the obtained phosphorescent lifetime, photoluminescent quantum yield, and phosphorescence-to-luminescence ratio. This study elaborates the importance of different film preparation techniques and gathers a concise set of data which is helpful to anyone optimizing the phosphorescence of a particular system.</jats:p>