| 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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Pugliara, Alessandro
Institut de Mathématiques de Marseille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Spray-dried ternary bioactive glass microspheres: Direct and indirect structural effects of copper-doping on acellular degradation behaviorcitations
- 2024Phase transformation kinetics in Ti 575 titanium alloy during heat treatment: Role of the initial microstructure during ageingcitations
- 2024Multiscale study of additively manufactured 316 L microstructure sensitivity to heat treatment over a wide temperature rangecitations
- 2024New insights on the origin of grain refinement in 316L additively manufactured alloyscitations
- 2024Catalytic atomic layer deposition of amorphous alumina–silica thin films on carbon microfiberscitations
- 2023Single-Step PEDOT Deposition by oCVD for ITO-Free Deep Blue OLEDscitations
- 2023Single-Step PEDOT Deposition by oCVD for ITO-Free Deep Blue OLEDscitations
- 2023Amorphous Alumina Thin Films Deposited on Carbon Microfibers As Interface Layer for Thermal Oxidation Barrierscitations
- 2020The 3D Design of Multifunctional Silver Nanoparticle Assemblies Embedded in Dielectricscitations
- 2020Oxidation of Ti–6Al–4V alloy between 450 and 600°C. Evolution of microstructure and mechanical propertiescitations
- 2020Solid-State Phase Transformations Involving (Nb,Mo)2CrB2 Borides and (Nb,Ti)2CS Carbosulfides at the Grain Boundaries of Superalloy Inconel 718citations
- 2020Growth Kinetics and Characterization of Chromia Scales Formed on Ni–30Cr Alloy in Impure Argon at 700 °Ccitations
- 2020STEM observation of a multiphase nucleus of spheroidal graphitecitations
- 2019Solidification sequence and four-phase eutectic in AlSi6Cu4Fe2 alloycitations
- 2018Black co oxides coatings for thermosensitive polymer surfaces by low-temperature DLI-MOCVD.citations
- 2018Black co oxides coatings for thermosensitive polymer surfaces by low-temperature DLI-MOCVD.citations
- 2018Influence of the microstructure on the corrosion behaviour of 2024 aluminium alloy coated with a trivalent chromium conversion layercitations
- 2018Black Co oxides coatings for thermosensitive polymer surfaces by low- temperature DLI-MOCVDcitations
- 2016Elaboration of nanocomposites based on Ag nanoparticles embedded in dielectrics for controlled bactericide properties ; Elaboration of thin nanocomposite layers based on Ag nanopartiles embedded in silica for controlled biocide properties
- 2016Elaboration of thin nanocomposite layers based on Ag nanopartiles embedded in silica for controlled biocide properties
- 2016Plasma based concept for engineering of multifunctional materials with application to synthesis of large-area plasmonic substrates and to control the charge injection in dielectrics
- 2015Assessing bio-available silver released from silver nanoparticles embedded in silica layers using the green algae Chlamydomonas reinhardtii as bio-sensorscitations
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.