| People | Locations | Statistics |
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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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Caussé, Nicolas
University of Toulouse
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Analysis of a film-forming amine response in impedance spectracitations
- 2024Adsorption kinetics and inhibition mechanisms of a film-forming amine on carbon steel surfacescitations
- 2024A comparative study of lithium salts for the corrosion inhibition of 2024 aluminium alloy
- 2023Ageing processes of coil-coated materials: Temperature-controlled electrochemical impedance analysiscitations
- 2023Ageing processes of coil-coated materials: Temperature-controlled electrochemical impedance analysiscitations
- 2023Film-forming amines adsorption and corrosion kinetics on carbon steel surface in neutral solution investigated by EIS and PM-IRRAS analysiscitations
- 2023Single-Step PEDOT deposition by oxidative chemical vapor deposition for opto-electronic applications
- 2023Single-Step PEDOT Deposition by oCVD for ITO-Free Deep Blue OLEDscitations
- 2023Single-Step PEDOT Deposition by oCVD for ITO-Free Deep Blue OLEDscitations
- 2021Liquid antimony pentachloride as oxidant for robust oxidative chemical vapor deposition of Poly(3,4-ethylenedioxythiophene) filmscitations
- 2021Partially acrylated linseed oil UV-cured coating containing a dihemiacetal ester for the corrosion protection of an aluminium alloycitations
- 2021Impedance analysis of the barrier effect of coil-coated materials: Water uptake and glass transition variationscitations
- 2021In situ study of the temperature activated kinetics of water sorption in an epoxy varnishcitations
- 2020An out of the box vision over oxidative chemical vapor deposition of PEDOT involving sublimed iron trichloridecitations
- 2020Correlation between the physical structure of a commercially formulated epoxy paint and its electrochemical impedance responsecitations
- 2020Film-Forming Amines for the Corrosion Protection of Carbon Steels in Nuclear Power Plant Secondary Circuit Conditions: An Impedance Studycitations
- 2019Synthesis of new high molecular weight phosphorylated chitosans for improving corrosion protectioncitations
- 2019Thermal activation of impedance measurements on an epoxy coating for the corrosion protection: 2. electrochemical impedance spectroscopy studycitations
- 2019Thermal activation of impedance measurements on an epoxy coating for the corrosion protection: 1. Dielectric spectroscopy response in the dry statecitations
- 2019New bio-based phosphorylated chitosan/alginate protective coatings on aluminum alloy obtained by the LbL techniquecitations
- 20198-hydroxyquinoline-modified clay incorporated in an epoxy coating for the corrosion protection of carbon steelcitations
- 2019Corrosion rate determination of rare-earth Mg alloys in a Na2SO4 solution by electrochemical measurements and inductive coupled plasma-optical emission spectroscopycitations
- 2018Impedance analysis of film-forming amines for the corrosion protection of a carbon steelcitations
- 2017Determination of water uptake in organic coatings deposited on 2024 aluminium alloy: Comparison between impedance measurements and gravimetrycitations
- 2017Adaptation of a dry metalorganic chemical vapor deposition (MOCVD) metallization process to a wet chemical pretreatment of polymerscitations
- 2016Morphology and dynamical mechanical properties of poly ether ketone ketone (PEKK) with meta phenyl linkscitations
- 2016Morphology and dynamical mechanical properties of poly ether ketone ketone (PEKK) with meta phenyl linkscitations
- 2013New bonded assembly configuration for dynamic mechanical analysis of adhesivescitations
Places of action
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article
Single-Step PEDOT Deposition by oCVD for ITO-Free Deep Blue OLEDs
Abstract
Organic light-emitting diodes (OLEDs) are emerging technologies for potential lighting and display applications. Transparent conductive electrodes (TCEs) play a crucial role in enabling the functionality and increased performance of these particular devices. Despite their widespread use, indium tin oxide (ITO) thin films have several significant drawbacks, including material scarcity, high costs associated with both materials and fabrication processes, and limited flexibility. To address these issues, we thoroughly investigate the deposition of poly(3,4-ethylenedioxythiophene) (PEDOT) thin films as a promising alternative to ITO using a single-step and dry method named oxidative chemical vapor deposition (oCVD). The impact of increasing the substrate temperature from 110 to 190 °C on the film’s structure and properties was revealed with an increase in the film conductivity to over 1600 S/cm at 170 °C and a total transmittance of 97% in the visible range. This increase was attributed to a change in the molecular structure of the conjugated polymer from benzoid to quinoid as revealed by Raman and FTIR measurements. The XPS results demonstrated an increase in the doping ratio with Cl-containing species and a reduction of impurities. GIXRD, HR-TEM, and AFM measurements indicated a smooth surface and a highly face-on orientation for all temperatures. The optimized TCE layers were successfully integrated into deep blue OLED devices emitting at 436 nm with stable color Commission Internationale de l’Energie (CIE) coordinates of (0.15, 0.08) under variation of the applied current. A satisfactory performance (72.1 cd/m2 and 0.86 W/sr·m2 at 10 mA cm–2) and an external quantum efficiency (EQE) of 1.04% were achieved. These results are quite promising, as OLEDs based on PEDOT as a TCE have demonstrated slightly better output performance in terms of luminance and radiance, with an increase in EQE by a factor of 1.7, compared to the reference device based on ITO.