When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents
Spiro compounds are widely used as host matrices in organic light‐emitting diodes (OLEDs). Here, inspired by the recent developments in thermally activated delayed fluorescence (TADF) materials, the potential as a light emitter of two spiro‐configured organic semi‐conductors is investigated, constru...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2022-11-01
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| Series: | Advanced Photonics Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/adpr.202200124 |
| _version_ | 1828314291995934720 |
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| author | Pauline Tourneur Fabien Lucas Clément Brouillac Cassandre Quinton Roberto Lazzaroni Yoann Olivier Pascal Viville Cyril Poriel Jérôme Cornil |
| author_facet | Pauline Tourneur Fabien Lucas Clément Brouillac Cassandre Quinton Roberto Lazzaroni Yoann Olivier Pascal Viville Cyril Poriel Jérôme Cornil |
| author_sort | Pauline Tourneur |
| collection | DOAJ |
| description | Spiro compounds are widely used as host matrices in organic light‐emitting diodes (OLEDs). Here, inspired by the recent developments in thermally activated delayed fluorescence (TADF) materials, the potential as a light emitter of two spiro‐configured organic semi‐conductors is investigated, constructed by the association of quinolinophenothiazine (QPTZ) or indoloacridine (IA) as the electron‐rich fragment and diphenylphosphine oxide fluorene as the electron‐poor fragment. By comparison with structural analogues lacking phosphine oxides, the crucial role played by these electron‐accepting substituents not only on the photo‐physical properties but also on the device performances is evidenced. Despite a very low quantum yield in solution, these two compounds unexpectedly display good emission properties when incorporated as a pure layer in OLEDs, thus highlighting the role of intermolecular effects. |
| first_indexed | 2024-04-13T16:42:56Z |
| format | Article |
| id | doaj.art-7b2279f868df4b29a332cad8a180ea08 |
| institution | Directory Open Access Journal |
| issn | 2699-9293 |
| language | English |
| last_indexed | 2024-04-13T16:42:56Z |
| publishDate | 2022-11-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Photonics Research |
| spelling | doaj.art-7b2279f868df4b29a332cad8a180ea082022-12-22T02:39:10ZengWiley-VCHAdvanced Photonics Research2699-92932022-11-01311n/an/a10.1002/adpr.202200124When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine SubstituentsPauline Tourneur0Fabien Lucas1Clément Brouillac2Cassandre Quinton3Roberto Lazzaroni4Yoann Olivier5Pascal Viville6Cyril Poriel7Jérôme Cornil8Laboratory for Chemistry of Novel Materials University of Mons 7000 Mons BelgiumISCR-UMR 6226 Université de Rennes 1 CNRS 35700 Rennes FranceISCR-UMR 6226 Université de Rennes 1 CNRS 35700 Rennes FranceISCR-UMR 6226 Université de Rennes 1 CNRS 35700 Rennes FranceLaboratory for Chemistry of Novel Materials University of Mons 7000 Mons BelgiumLaboratory for Computational Modeling of Functional Materials Université de Namur 5000 Namur BelgiumMateria Nova Materials R&D Center 7000 Mons BelgiumISCR-UMR 6226 Université de Rennes 1 CNRS 35700 Rennes FranceLaboratory for Chemistry of Novel Materials University of Mons 7000 Mons BelgiumSpiro compounds are widely used as host matrices in organic light‐emitting diodes (OLEDs). Here, inspired by the recent developments in thermally activated delayed fluorescence (TADF) materials, the potential as a light emitter of two spiro‐configured organic semi‐conductors is investigated, constructed by the association of quinolinophenothiazine (QPTZ) or indoloacridine (IA) as the electron‐rich fragment and diphenylphosphine oxide fluorene as the electron‐poor fragment. By comparison with structural analogues lacking phosphine oxides, the crucial role played by these electron‐accepting substituents not only on the photo‐physical properties but also on the device performances is evidenced. Despite a very low quantum yield in solution, these two compounds unexpectedly display good emission properties when incorporated as a pure layer in OLEDs, thus highlighting the role of intermolecular effects.https://doi.org/10.1002/adpr.202200124density functional theoryelectroluminescencelight emissionphosphine groupsspiro compounds |
| spellingShingle | Pauline Tourneur Fabien Lucas Clément Brouillac Cassandre Quinton Roberto Lazzaroni Yoann Olivier Pascal Viville Cyril Poriel Jérôme Cornil When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents Advanced Photonics Research density functional theory electroluminescence light emission phosphine groups spiro compounds |
| title | When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents |
| title_full | When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents |
| title_fullStr | When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents |
| title_full_unstemmed | When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents |
| title_short | When Poor Light‐Emitting Spiro Compounds in Solution Turn into Emissive Pure Layers in Organic Light‐Emitting Diodes: The Key Role of Phosphine Substituents |
| title_sort | when poor light emitting spiro compounds in solution turn into emissive pure layers in organic light emitting diodes the key role of phosphine substituents |
| topic | density functional theory electroluminescence light emission phosphine groups spiro compounds |
| url | https://doi.org/10.1002/adpr.202200124 |
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