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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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| Blanpain, Bart |
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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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| Rignanese, Gian-Marco |
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Bown, Mark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Translational MedTech Research - What have we learned?
- 2018Morphology and surface properties of high strength siloxane poly(urethane-urea)s developed for heart valve applicationcitations
- 2018An external quantum efficiency of >20% from solution-processed poly(dendrimer) organic light-emitting diodescitations
- 2015Redox levels of a closo-osmaborane: a density functional theory, electron paramagnetic resonance and electrochemical studycitations
- 2013The impact of tetrahedral capping groups and device processing conditions on the crystal packing, thin film features and OFET hole mobility of 7,14-bis(ethynyl)dibenzo[b,def]chrysenescitations
- 2013Thermally cross-linkable copolymer and its evaluation as a hole transport layer in organic light-emitting diode devicescitations
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article
Thermally cross-linkable copolymer and its evaluation as a hole transport layer in organic light-emitting diode devices
Abstract
This study reports on the synthesis of new thermally cross-linkable copolymers containing a reactive cross-linking comonomer. Synthesized polymers showed narrow molecular weight distribution (polydispersity) between 1.18 to 1.22 and 54 to 67% monomer conversion and incorporation of 2 to 7 mol% vinylbenzylcyclobutene comonomer. The polymer was soluble in nonpolar organic solvents such as chloroform, dichloromethane, toluene, and chlorobenzenes, and when cross-linked, showed resistance to solubility in the previously listed solvents. The cross-linked films exhibited uniform surface roughness below 1 nm. A polymer containing ~3.6 mol% vinylbenzylcyclobutene was thermally cross-linked and evaluated as a hole-transporting layer in green organic light-emitting diode devices. The devices showed a maximum current efficiency of 39.5 cd/A at a current density of 2.7 mA/cm2 and a brightness of 1000 cd/m2 with an International Commission on Illumination coordinate (0.33, 0.62). The device performances are found comparable with the ones with the conventional hole-transporting layer material, NPD.