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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Zysman-Colman, Eli
University of St Andrews
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Organic light-emitting diodes comprising an undoped thermally activated delayed fluorescence emissive layer and a thick inorganic perovskite hole transport layer
- 2024Organic Light-Emitting Diodes Comprising an Undoped Thermally Activated Delayed Fluorescence Emissive Layer and a Thick Inorganic Perovskite Hole Transport Layer
- 2021A luminescent 1D silver polymer containing [2.2]paracyclophane ligandscitations
- 2020A Pd 3 L 6 supramolecular cage incorporating photoactive [2.2]paracyclophane unitscitations
- 2020Stable 6H organic-inorganic hybrid lead perovskite and competitive formation of 6H and 3C perovskite structure with mixed A cationscitations
- 2020A Pd3L6 supramolecular cage incorporating photoactive [2.2]paracyclophane Unitscitations
- 2020What controls the orientation of TADF emitters?citations
- 2019A Pd 3 L 6 supramolecular cage incorporating photoactive [2.2]paracyclophane Unitscitations
- 2019Stable 6H organic-inorganic hybrid lead perovskite and competitive formation of 6H and 3C perovskite structure with mixed A cationscitations
- 2019A Pd3L6 supramolecular cage incorporating photoactive [2.2]paracyclophane Unitscitations
- 2017Lessons learned in tuning the optoelectronic properties of phosphorescent iridium(III) complexescitations
- 2017Blue-to-green emitting neutral Ir(III) complexes bearing pentafluorosulfanyl groups:a combined experimental and theoretical studycitations
- 2017Blue-to-green emitting neutral Ir(III) complexes bearing pentafluorosulfanyl groups : a combined experimental and theoretical studycitations
- 2017Blue-to-green emitting neutral Ir(III) complexes bearing pentafluorosulfanyl groupscitations
- 2016Synthesis and characterization of green-to-yellow emissive Ir(III) complexes of pyridylbenzothiadiazine ligandcitations
- 2016Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(III) complexes bearing bisphosphine ligandscitations
- 2016Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(III) complexes bearing bisphosphine ligandscitations
- 2016Synthesis, properties and Light-Emitting Electrochemical Cell (LEEC) device fabrication of cationic Ir(III) complexes bearing electron-withdrawing groups on the cyclometallating ligandscitations
- 2016Synthesis, properties and Light-Emitting Electrochemical Cell (LEEC) device fabrication of cationic Ir(III) complexes bearing electron-withdrawing groups on the cyclometallating ligandscitations
- 2015Strategic modulation of the photonic properties of conjugated organometallic Pt–Ir polymers exhibiting hybrid CT-excited statescitations
- 2014Strategic modulation of the photonic properties of conjugated organometallic Pt–Ir polymers exhibiting hybrid CT-excited statescitations
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article
What controls the orientation of TADF emitters?
Abstract
This work was funded by the EU Horizon 2020 MSC ITN “TADFlife” (Grant Agreement No. 812872) as well as by Deutsche Forschungsgemeinschaft (DFG, project no. Br 1728/20-1). ZZ acknowledges the financial support from Chinese Scholarship Council (CSC, 201606890009) for his PhD studies. ; Thermally-activated delayed fluorescence (TADF) emitters—just like phosphorescent ones—can in principle allow for 100% internal quantum efficiency of organic light-emitting diodes (OLEDs), because the initially formed electron-hole pairs in the non-emissive triplet state can be efficiently converted into emissive singlets by reverse intersystem crossing. However, as compared to phosphorescent emitter complexes with their bulky—often close to spherical—molecular structures, TADF emitters offer the advantage to align them such that their optical transition dipole moments (TDMs) lie preferentially in the film plane. In this report, we address the question which factors control the orientation of TADF emitters. Specifically, we discuss how guest-host interactions may be used to influence this parameter and propose an interplay of different factors being responsible. We infer that emitter orientation is mainly governed by the molecular shape of the TADF molecule itself and by the physical properties of the host—foremost, its glass transition temperature Tg and its tendency for alignment being expressed, e.g., as birefringence or the formation of a giant surface potential of the host. Electrostatic dipole-dipole interactions between host and emitter are not found to play an important role. ; Peer reviewed