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.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:90324 |
| Date | 18 April 2024 |
| Creators | Thomas, Heidi, Haase, Katherina, Achenbach, Tim, Bärschneider, Toni, Kirch, Anton, Talnack, Felix, Mannsfeld, Stefan C. B., Reineke, Sebastian |
| Publisher | Frontiers Media |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2296-424X, 841413, 10.3389/fphy.2022.841413 |
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