Academic literature on the topic 'Diodes électroluminescentes organiques (OLEDs)'
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Journal articles on the topic "Diodes électroluminescentes organiques (OLEDs)"
Khadir, Samira, Mahmoud Chakaroun, and Azzedine Boudrioua. "Effet du plasmon de surface localisé sur les propriétés des sources organiques (OLED)." Photoniques, no. 90 (January 2018): 26–27. http://dx.doi.org/10.1051/photon/20189026.
Full textHissler, Muriel. "Les diodes électroluminescentes organiques : technologies et performances." Photoniques, no. 68 (November 2013): 35–38. http://dx.doi.org/10.1051/photon/20136835.
Full textAndré, Jean-Marie, and Jean-luc Brédas. "Transfert d'électrons : des polymères conducteurs d'électricité aux diodes organiques électroluminescentes ou une avalanche de Prix Nobel." Bulletin de la Classe des sciences 13, no. 7 (2002): 273–89. http://dx.doi.org/10.3406/barb.2002.28296.
Full textAntony, R., A. Moliton, and B. Ratier. "Effet de l'énergie du faisceau d'ions servant à l'assistance du dépôt de matériaux organiques utilisés pour réaliser des diodes électroluminescentes." Journal de Chimie Physique et de Physico-Chimie Biologique 95, no. 6 (June 1998): 1359–62. http://dx.doi.org/10.1051/jcp:1998283.
Full textDESTRUEL, Pierre, and Pascale JOLINAT. "Diodes électroluminescentes organiques (OLED)." Le traitement du signal et ses applications, November 2004. http://dx.doi.org/10.51257/a-v1-in25.
Full textJOLINAT, Pascale. "Diodes électroluminescentes organiques (OLED) - Technologies." Optique Photonique, August 2011. http://dx.doi.org/10.51257/a-v1-e6505.
Full textSEBAIHI, Noham, Jérôme CORNIL, and Pascal VIVILLE. "Diodes électroluminescentes organiques (OLED) émettrices de lumière blanche - Caractéristiques et applications pour l'éclairage." Optique Photonique, November 2011. http://dx.doi.org/10.51257/a-v1-in145.
Full textJOLINAT, Pascale, Cédric RENAUD, and Marc TERNISIEN. "Diodes électroluminescentes organiques - Technologie." Optique Photonique, October 2016. http://dx.doi.org/10.51257/a-v2-e6505.
Full textRAULT-BERTHELOT, Joëlle, and Cyril PORIEL. "Diodes électroluminescentes organiques : quatre technologies différentes." Optique Photonique, April 2021. http://dx.doi.org/10.51257/a-v1-e6507.
Full textFORGET, Sébastien, and Sébastien CHENAIS. "Matériaux organiques pour diodes électroluminescentes et lasers." [Archives] Optique Photonique, July 2014. http://dx.doi.org/10.51257/a-v1-e6435.
Full textDissertations / Theses on the topic "Diodes électroluminescentes organiques (OLEDs)"
Alchaddoud, Alaa. "Etude du comportement électrique et photométrique des diodes électroluminescentes organiques pour l’éclairage ayant subi un vieillissement accéléré." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30061/document.
Full textThis work reports on the study of accelerated ageing of white organic light-emitting diodes (OLEDs) for lighting. We chose to apply our study on commercial products (Philips lumiblade GL55 and OSRAM Orbeos RMW-046) to eliminate the moisture, oxygen and manufacturing process effects on the degradation mechanisms. A preliminary bibliographic study enabled us to understand the operation mechanism of the OLEDs and to analyze the different degradation causes. This one also allowed us to determine the accelerated ageing test conditions (thermal and electrical stresses). In order, to apply these particular stress conditions, we designed and realized a specific and custom-made experimental ageing bench which allows us at the same time to apply these various ageing conditions and carry out electrical and optical measurement in situ. These measurements were realized before degradations and then until a loss of 50% of the luminous flow. The evolution of the electrical and optical characteristics of the OLEDs as well as the results obtained from some additional structural analysis enabled us to establish and understand the involved mechanisms
Reisdorffer, Frédéric. "Dégradation des diodes électroluminescentes organiques : analyses électriques et thermiques." Nantes, 2013. http://archive.bu.univ-nantes.fr/pollux/show.action?id=edb2c8d4-524a-44b6-95e9-99cfa7e0a49b.
Full textOrganic light emitting diodes are one of the most promising technologies to promote display and lighting applications. In this thesis, we have focused on extrinsic and intrinsic defects, which are present in organic light emitting diodes and which limit their lifetime. These defects were characterized by electrical and thermal measurements. First, we determined the electrical properties of a freshly prepared Alq3 based OLED of different structures by techniques such as current-voltage-luminance characteristics, impedance spectroscopy and deep level transient spectroscopy. Next, thin films of Alq3 were characterized at the microscopic scale by scanning thermal microscopy to determine the thermal properties layer organization. To quantify the thermal properties, we have used photo thermal radiometry and we have developed the 3ω method. From these results, we have studied degradation processes by two approaches. Extrinsic degradation processes were studied by analyzing the organic thin film aged under different storage conditions. Intrinsic degradation was studied by applying an electrical stress to the diodes for a long period. The results obtained show that a structural reorganization of the layers during aging process causes irreversible modifications of the diodes properties
Blondel, Benoît. "Complexes de platine(II) pour des diodes organiques électroluminescentes (OLEDs) rouges et bistables." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30173/document.
Full textThis thesis describes the integration of platinum(II) complexes within organic light emitting diodes (OLEDs). These complexes ([Pt(II) (tetra-tert-butylSalophen)] and [Pt(II) Salophen]) were characterized by the usual methods ( 1H NMR, UV-Vis spectroscopy, electrochemistry and X-ray diffraction for [Pt(II) (tetra-tert-butylSalophen)]). DFT calculations support the experimental data which guided the selection of Tris(8-hydroxyquinolinato) aluminum (Alq3)as host. 5% doping in monolayer OLEDs gave bistable devices which may be used as memory. Modulation of this phenomenon was allowed by adding a controlled layer of N,N'-Di(1-naphthyl)-N,N'-diphenyl-(1,1'-biphenyl)-4,4'-diamine (NPD). Bilayer OLEDs (NPD/Alq3:Pt) were shown to emit in the deep-red range between 640-750nm with efficiencies higher than 20%. Upon doping with complexes, an enhancement in the lifetime of OLEDs was highlighted
Sergent, Alessandra. "Métallopolymères des éléments f : nouveaux matériaux hybrides semi-conducteurs phosphorescents pour les diodes électroluminescentes organiques." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00840219.
Full textKanaan, Hani. "Spectroscopie d'électro-absorption appliquée aux diodes électroluminescentes (OLEDs) et aux cellules photovoltaïques (OPVs)." Toulouse 3, 2009. http://thesesups.ups-tlse.fr/519/.
Full textThe object of this thesis is the study of electric field in organic light-emitting diodes and photovoltaic cells by use of electroabsorption spectroscopy. This technique, based on a nonlinear optical (Stark) effect, allows the characterization of operating components. The effect of injecting layers deposited on ITO, and of cathode metals, on charge carrier injection, has been studied. Electrical and optical properties of Alq3 and PFV based OLEDs have been related to flat band voltage variation. The effect of PEDOT:PSS on the open-circuit voltage of photovoltaic cells based on discotic molecules has been investigated. The presence of different components of internal electric field (interface and bulk electric field) has been evidenced
Bejbouji, Habiba. "Optimisation des matériaux d'électrodes dans les diodes électroluminescentes et les cellules solaires organiques." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2009. http://tel.archives-ouvertes.fr/tel-01005217.
Full textPinot, Christophe. "Modélisation des diodes électroluminescentes organiques multicouches dopées. Application à de nouvelles architectures." Phd thesis, Ecole Polytechnique X, 2008. http://pastel.archives-ouvertes.fr/pastel-00005744.
Full textMarghad, Ikbal. "Etude de composants électroluminescents à fluorescence retardée thermiquement activé à base de la 1,3,5 triazine et leur application au sein de la troisième génération des diodes organiques électroluminescentes (OLEDs)." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30295.
Full textRecently, the synthesis of free metal materials for organic LEDs by Uoyama et al adds a third kind of luminescence, named thermally activated delayed fluorescence (TADF). The added value of this discovery is to lower significantly OLED cost thanks to the metal-free structure of these so-called hyper-fluorescent molecules. This work reports on this recent discovery in OLED's. We first studied the thermally activated delayed fluorescence from an existing molecular model. The latter, fulfil the condition of the delayed fluorescence and are based from triazine-carbazole derivatives. The results revealed for thefirst time the exhibition of the delayed fluorescence from this existing model. In a second part, a novel hyperfluorescent molecule have been synthesized following the design rules for the delayed fluorescence molecules. The synthesis was done by a method based on an attractive process. Furthermore, the structure and properties of these new materials indicate that these molecules are expected to exhibit delayed fluorescent. Thus, it is important to continue this work by evaluating the properties of these molecules and the OLEDs made from these materials
Li, Haixia. "Design and characterization of new pyridazine materials for OLEDs and OSLs applications." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS227.
Full textIn this work, new organic emitting materials have been developed for applications in the field of light emitting diodes or organic lasers. First of all, several molecules of the Donor-Acceptor type incorporating various electro-deficient nitrogenous hearts have been successfully prepared, their design being designed with the aim of obtaining TADF emitters. Their photophysical properties have been studied in solution and in the solid state. In these structures, intramolecular charge transfer is produced via intermolecular interactions between the D and A groups, and their study revealed that some of them exhibit a TADF character. The electroluminescence properties of the most promising compounds have also been studied in OLED configuration, even if to date the observed yields remain low. Then, a series of gain molecules based on pi-conjugated structures, still consisting of nitrogenous cores, have been successfully synthesized for laser applications. Their chemical structures have been characterized by nuclear magnetic resonance (NMR) and high-resolution mass spectroscopy (HRMS). Good luminescence properties such as high quantum photoluminescence yields (PLQY) and short fluorescence lifetimes have been demonstrated in solution and in the solid state for most derivatives. Finally, some emissive materials exhibit good amplified spontaneous emission (ASE) properties with low threshold values, and optically pumped laser devices could also be made from some of the derivatives of the series
Caron, Baptiste. "Compréhension des pertes optiques et amélioration du contraste des OLEDs en architecture top-émission." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALT065.
Full textSince their discovery in the 80's, OLEDs (Organic Light Emitting Diodes) have established themselves as a key technology for display applications. They enable to achieve flexible or transparent OLED display panels. Organic semiconductors are intrinsically emissive and OLED therefore do not require backlighting unlike LCD monitors. This allows the fabrication of compact and lightweight devices and make very high display resolutions achievable. All these strengths are especially useful for the realization of micro-displays, developed for many years at CEA-LETI and used in nomadic display devices (augmented reality glasses, or AR).However, optical losses within the OLED stacks strongly limit the light power and the efficiency of these devices. For a conventional OLED, 80% of the light emitted within the device is lost. However, high luminance (typically 10-20 cd/m²) is required for AR applications to obtain a good contrast with the ambient outdoor light. The efficiency must also be as high as possible in order to minimize the battery weight of such mobile devices.A dedicated OLED device for studying emission modes has been created in this work in order to experimentally measure the sources of optical losses present in the top-emission OLED structures used in microdisplays. A nano-grating has been achieved by photolithography on top of the top-emitting OLED thin layer encapsulation, made by atomic layer deposition (ALD). This grating allowed to observe two of the guided modes contained in the microcavity of the OLED. It is the first time that such an observation is made on this kind of OLED which emits light from the top of the structure. An absorbing cathode has also been developed to improve the contrast of these OLEDs. The chosen material is a cermet (ceramic/metal) composed of silver and tungsten oxide (Ag:WO3 with a thickness < 20 nm). A study of the optical, electrical and morphological characteristics of this material allowed to realize OLEDs devices with improved contrast without adding a circular polarizer. The absorption of the cermet coupled with the cavity effect of the OLED strongly limits the reflections due to ambient luminosity
Books on the topic "Diodes électroluminescentes organiques (OLEDs)"
H, Kafafi Zakya, ed. Organic electroluminescence. Boca Raton, FL: CRC Press, Taylor & Francis, 2005.
Find full textEfficient Organic Light Emitting Diodes (OLEDs). Taylor & Francis Group, 2015.
Find full textChang, Yi-Lu. Efficient Organic Light Emitting-Diodes (OLEDs). Pan Stanford Publishing, 2015.
Find full textPrinciples and Applications of Organic Light Emitting Diodes (OLEDs). Elsevier Science & Technology, 2017.
Find full textSwart, Hendrik C., N. Thejo Kalyani, and Sanjay J. Dhoble. Principles and Applications of Organic Light Emitting Diodes (OLEDs). Elsevier Science & Technology, 2017.
Find full textOLED Fundamentals: Materials, Devices, and Processing of Organic Light-Emitting Diodes. Taylor & Francis Group, 2015.
Find full textGaspar, Daniel J., and Evgueni Polikarpov. OLED Fundamentals: Materials, Devices, and Processing of Organic Light-Emitting Diodes. Taylor & Francis Group, 2015.
Find full textGaspar, Daniel J., and Evgueni Polikarpov. OLED Fundamentals: Materials, Devices, and Processing of Organic Light-Emitting Diodes. Taylor & Francis Group, 2018.
Find full textFundamentals of Solid-State Lighting: LEDs, OLEDs, and Their Applications in Illumination and Displays. Taylor & Francis Group, 2014.
Find full textKhanna, Vinod Kumar. Fundamentals of Solid-State Lighting: LEDs, OLEDs, and Their Applications in Illumination and Displays. Taylor & Francis Group, 2017.
Find full textBook chapters on the topic "Diodes électroluminescentes organiques (OLEDs)"
Moliton, André. "Les diodes électroluminescentes organiques et leurs applications (affichage, éclairage)." In Electronique et optoélectronique organiques, 339–404. Paris: Springer Paris, 2011. http://dx.doi.org/10.1007/978-2-8178-0103-2_9.
Full text"Chapitre 12 : Les diodes électroluminescentes organiques : des sources « plates » de lumière d’après la conférence de Lionel Hirsch." In Chimie et technologies de l'information, 183–98. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1643-9-014.
Full text"Chapitre 12 : Les diodes électroluminescentes organiques : des sources « plates » de lumière d’après la conférence de Lionel Hirsch." In Chimie et technologies de l'information, 183–98. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1643-9.c014.
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