Dissertations / Theses on the topic 'Carbazate organique'
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Blouin, Nicolas. "Conception, synthèse et caractérisation de poly(2,7-carbazole)s et poly(indolo[3,2-B]carbazole)s pour des applications en électronique organique." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25870/25870.pdf.
Full textInscrit au Tableau d'honneur de la Faculté des études supérieures
Haelters, Jean-Pierre. "Synthèse de dérivés phosphono-indoliques-benzofuranniques et -pyrroliques à partir d'hydrazones phosphonates." Brest, 1987. http://www.theses.fr/1987BRES2002.
Full textDegbia, Wangata Saint-Martial. "Semi-conducteurs organiques [pi]-conjugués pour l'élaboration de dispositifs photovoltaïques hybrides solides à colorant." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4044/document.
Full textThe aim ot this work has been to prepare new hole transporting molecular glasses based on carbazole moieties as an alternative to spiro-OMeTAD (standard material) in solid state dye sentitized solar cells (ssDSSC). We have synthesized several 3, 6, 9 substituted carbazole derivatives and have established their physical and chemical properties prior using them in photovoltaic devices. We have demonstrated the interest of grafting functional groups as bis(4-methoxyphenyl)amines on 3, 6 positions and aryl substitutes on the 9 position of carbazole to obtain efficient materials. Finally, this latter chemical structure has been used as a building block to develop an innovative concept of synthesis of carbazole based materials, smoothing the way to easy synthesis of a wide family of efficient molecular glasses for ssDSSC. Our best materials exhibit similar power conversion efficiency compare to the standard spiro-OMeTAD. According to these preliminary results, we expect reaching power conversion efficiencies over 15% with our carbazole based hole transporting materials associated with peroskite sensitizer
Boudreault, Pierre-Luc. "SYNTHÈSE ET CARACTÉRISATION DE NOUVEAUX SEMI-CONDUCTEURS ORGANIQUES À BASE DE CARBAZOLE ET D’INDOLO[3,2-b]CARBAZOLE." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27896/27896.pdf.
Full textBoudreault, Pierre-Luc. "Synthèse et caractérisation de nouveaux semi-conducteurs organiques à base de carbazole et d'indolo[3,2-b]carbazole." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/22285.
Full textDe, Sousa Samuel. "Ingéniérie, synthèse et étude de chromophores organiques et organométalliques pour cellules solaires à colorant." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00952228.
Full textClergereaux, Richard. "Depot et etude de couches de carbazole electropolymerise pour l'elaboration de diodes electroluminescentes organiques." Toulouse 3, 1999. http://www.theses.fr/1999TOU30088.
Full textGarbay, Guillaume. "Nouvelles voies de synthèse sans métaux d'oligomères et de polymères π-conjugués pour l'électronique organique." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0240/document.
Full textIn this work, synthesis and characterizations of new conjugated polymers are described.These polymers, developed for their integration into devices, have been synthesized via transitionmetalfree polymerizations. Carbazole based polyazomethines have been synthesized via polycondensation reactions between di-substituted carbazoles, bearing amino and formyl functionsin positions 3,6 or 2,7. Optical and electronical properties of such polymers have been studieddepending of the linkage position. A comonomer EDOT has then been integrated into the polymer chain, and impact of such insertion has been studied. Squaric and croconic acid base polymers have also been synthesized. By varying polymerization conditions, optoelectronic properties have been tuned, leading to the formation of polymers exhibiting a white emission. These polymers have then been integrated into OLED, as the active layer. Finally, more original polymers have been synthesized, using more original reactions or monomers such as by forming in situ benzobisthiazole. Other polymers integrating more originals monomers, such a tetrazine or divanillin, have been synthesized. Optoelectronic properties of such materials have been studied for the purpose of their integration into devices
Landelle, Henriette. "Synthèse et étude physicochimique des pyridazino [4,5-b] carbazoles, benzofuro [3,2-f] phtalazines, pyrido [3', 4' : 4,5] furo [3,2-b] indoles, benzothiéno [2,3-g] cinnolines." Caen, 1988. http://www.theses.fr/1988CAEN4072.
Full textDrolet, Nicolas. "Étude de dispositifs électro-optiques à base de matériaux dérivés de l'unité 2,7-carbazole." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23878/23878.pdf.
Full textBerton, Nicolas. "Synthèse et caractérisation de copolymères pi-conjugués à base de thiophène et de carbazole fonctionnalisés par des dérivés de fullerènes pour application au photovoltaïque organique." Université Joseph Fourier (Grenoble), 2009. http://www.theses.fr/2009GRE10225.
Full text'This work is devoted to the synthesis and characterization ofnew thiophene- and 3,6-linked carbazole-based conjugated double-cable copolymers for organic photovoltaics. Bis-thiophene-carbazole (BTC) monomers were synthesized and functionalized with fullerene derivatives. Electropolymerization of the resulting donor-acceptor hybrid macromolecules allowed the formation of thin films of double-cable polymers bearing one fullerene moiety per BTC repeat unit. The specific electrochemical properties ofboth the polymer backbone and the fullerene moieties are preserved within the double-cable structure, indicating little electronic interactions. Power conversion efficiency of these materials remain low (0. 006%). Different polythiophene-carbazole polymers were chemically synthesized and tested in photovoltaic devices. The tuning of the optical and electrochemical propwerties of the polymers was achieved by incorporation of benzothiadiazole units and alkyl side chains. Double-cable polymers were then obtained by further chemical functionalization with methanofullerene derivatives. Double-cable were used as the main component of solar cells as well as an additive to help improving the control of the nanostructure of the active layer
Ottone, Chiara. "Nouveaux copolymères donneur-accepteur : préparation, caractérisation physico-chimique et application des cellules photovoltaïques organiques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00864002.
Full textBenhattab, Safia. "Synthèse et caractérisation de matériaux organiques transporteurs de trous à base de carbazole : application aux cellules solaires DSSC solides et pérovskite." Thesis, Tours, 2018. http://www.theses.fr/2018TOUR4014/document.
Full textThe aim of this work was to design, synthesize and characterize new carbazole based molecular glasses for the realization of solid state DSSC or perovskite solar cells. These structures would be an alternative to the reference molecule based on spirobifluorene (Spiro-OMeTAD) mainly used in hybrid devices. We have optimized a simple way to synthetize a "synthon" as a precursor to the design of a wide variety of efficient hole transporting materials (HTM). This synthesis pathway has allowed producing a first generation of molecules based on a single carbazole synthon substituted by aryl groups (naphthalene, pyrene, triazatruxene) then a second generation incorporating two carbazole synthons separated by an alkyl spacer. In both cases, the synthesis pathways are simple and the energy conversion efficiencies generated in solid DSSCs are promising (between 2.22 % and 2.47 % with the D102 dye). A preliminary ageing study has consisted in analyzing the degradation during thermolysis or photolysis of a carbazole based thin film. It was shown that Cz-P possesses stability similar to Spiro-OMeTAD in the absence of oxygen. Finally, two carbazole molecular glasses were studied in perovskite cells to achieve conversion efficiencies of 13.08 % and 12.41 % (for Cz-P and Cz-PF respectively) almost identical to the one based on Spiro-OMeTAD (13.45 %), confirming that these carbazole based structures are good candidates for the realization of efficient perovskite cells
Magaldi, lara Diego A. "Conception De Nouvelles Molécules De Transport De Trous À Base De Carbazole Pour Cellules Solaires Hybrides De La Pérovskite." Thesis, Cergy-Pontoise, 2019. http://www.theses.fr/2019CERG1031.
Full textAbstractDuring the last ten years, research around hybrid perovskite solar cells has achieved high photovoltaic efficiency conversion. Add to this, its solution processability and low-cost manufacture materials like ammonium lead (II) iodide, make of PSC one of the best on developing solutions to attain solar power. Organic hole transport materials (HTM) like Spiro-OMeTAD are an integral part of its architecture. The presented thesis aims to develop alternative solutions for the HTM layer, synthetizing new molecules that can match suitable carrier properties for its use on Perovskite solar cells (PSC). For this matter, the heterocycle carbazole (Cz), which is a well-known molecule used in organic electronics, is selected as a base molecule for our study. Due to its low cost production, ease modification of its structure over fixed positions and versatility over different reaction paths. For the later reasons Cz makes an ideal option to explore its use as HTM.Chapter 1 is a brief resume on photovoltaics and state of the art of PSC. The introduction describes the most common composition and function of the different layers that constitute the photovoltaic device’s layers. Followed by a review of carbazole molecules use as HTM until now, which are described and compared to lay the foundation of the present work.Chapter 2 reports the synthesis of two a two series of new hole transporting materials (HTMs). The presented molecules are composed by two diphenylamine(DPA) fragments linked to carbazole unit. From dibromo-carbazole as a starting material, synthesis is performed by a simple two-step synthetic procedure providing the target products in high yield. Two series of molecules designated as DMx and iDMx are obtained, differentiated between each other by their substitution positon 3,6-Cz (DMx) vs 2,7-Cz (iDMx) on the carbazole (Cz) core by the DPA groups. The molecules are examined along with thermal and optoelectronic characterization, film formation ability and further test on perovskite photovoltaic devices as well.Chapter 3 is detailed description of anionic and radical polymerization essays over molecule called DM1, which bears an alkene polymerizable function. The resulted polymer DM1P, is fully characterized and tested over PSC modules and compared with its origin monomer. The second part of Chapter 3, consist on the synthesis of a series of 3,6-carbazole linked conjugated copolymers, designated as PCzX series. With the present PCzX molecules, we explore the possibility of the use of conjugated polymers on PSC devices as an alternative to the actual small molecules. The synthetized polymers are fully characterized and preliminary photovoltaic results are presented.Chapter 4 describes a series of bicarbazolyl (two carbazole heterocycles connected by N- atom to a benzene ring in para position) molecules (DM1X), conceived to test its subsequent oligomerizaton/polymerization by further oxidative coupling reactions. This kind of polymerization can be potentially achievable with carbazole molecule under the right conditions. The present study pretends to compare the optoelectronic and thermal differences between a monomer and the derived oligomer/polymer. All molecules are fully characterized.Keywords: Carbazole, conjugated-polymer, non-conjugated polymer, oxidative polymerization, Hole transport material, Perovskite solar cell, photovoltaics
Michaud, Alexandre. "Étude de l'influence de la structure de polymères [Pi]-conjugués à base de 2,7-carbazole sur les propriétés électroniques dans les dispositifs photovoltaïques." Doctoral thesis, Université Laval, 2009. http://hdl.handle.net/20.500.11794/21214.
Full textEssaïdi, Zacaria. "Photo-structuration et propriétés optiques non-linéaires de composés organiques azoïques : azoazulène, azocarbazole et azobenzène." Angers, 2009. http://www.theses.fr/2009ANGE0061.
Full textOrganic materials are interesting and promising systems for a wide range of applications : photonic, optoelectronic, optical data storage, electronic, and son on. The unique properties of these organic molecular or polymer systems can be modulated by grafting functional groups so as to target specific functions. Research and development of new photosensitive materials and optically active is hence a major challenge. We treat in this study the photo-ordering and nonlinear optical properties of three families of organic azo-dye compounds ; azo-azulenes, carbazoles and azo-azo-benzenes. These systems are designed by adding a donor group and acceptor group separated by a π-conjugated chain. This association leads to asymmetric distribution of charge and allow large optical nonlinearities. The experimental results obtained by different experimental techniques show quadratic susceptibilities are higher relative to the reference material (quartz), and cubic susceptibilities is in the order of that of the reference (carbon disulfide). We report also the potential of these compounds for formation of surface photo-induced grating. The obtained results in picosecond regime showed the formation of one or two-dimensional periodic structures and a located photostructuration
Caruso, Anna. "Synthèse de nouveaux diméthylcarbazoles, (diméthyl)pyrimidocarbazoles, benzofuroquinazolinones et benzofurochinazolinones à visée anticancéreuse." Caen, 2008. http://www.theses.fr/2008CAEN2067.
Full textOriou, Jules. "Synthesis and structure-properties relationship of alternated π-conjugated copolymers." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-01070649.
Full textAinseba, Nabila. "Conception de nouveaux antivasculaires antitumoraux à partir de modèles naturels : synthèse et évaluation biologique." Thesis, Paris 5, 2013. http://www.theses.fr/2013PA05P612.
Full textPas de résumé en anglais
Sinibaldi, Marie-Eve. "Nouveaux intermediaires pour la synthese d'alcaloides pentacycliques : synthese totale de la desethyl-20 acetyl-20 aspidospermidine." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21144.
Full text"Conception, synthèse et caractérisation de poly(2,7-carbazole)s et poly(indolo[3,2-B]carbazole)s pour des applications en électronique organique." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25870/25870.pdf.
Full textCaron, Antoine. "I : Synthèse de carbazole en débit continu. II : Transfert de proton couplé à l’électron photocatalysé au cuivre." Thèse, 2019. http://hdl.handle.net/1866/23400.
Full textPhotochemistry and photocatalysis have had a significant impact in organic synthesis, often offering low-energy alternatives to traditional thermal chemistry, or even affording complementary reactivity. The thesis is divided into two sections describing photochemical methods for the synthesis of carbazoles and 1,2-diols. The first section described the conception of a flow chemistry apparatus and a comparison of two photochemical methods, one using visible light and another using UV-light for carbazole synthesis via flow chemistry. While UV irradiation affords better yields, it does not tolerate sensitive functionals groups that are accessible when irradiated in the visible range. The chemoselectivity of the carbazoles synthesis is also examined with both methods. The second section explores the development of copper(I) photocatalysts for promoting a reductive proton-coupled electron transfer (PCET). General guidelines and structure/activity relationships were established for the PCET process through evaluation of a 50-member library of heteroleptic copper complexes bearing one diamine and one bisphosphine. Furthermore, it was demonstrated that a copper photocatalyst could be designed a priori to incorporate a hydrogen-bond donor within its framework to promote PCET reactions. The newly designed catalyst was applied in a photochemical pinacol coupling and was capable of transforming substrates that were unreactive using existing technology, even with a hydrogen bond donor that was orders of magnitude less acidic than common additives. Mechanistic studies demonstrated that the copper catalyst functioned via reductive quenching before PCET, which could not have been easily predicted given the literature precedent. The thesis describes the preparation of molecules such as pinacols and heterocycles that are of high value. Importantly, the new photochemical methods developed lower the energy requirements for synthesis, decrease reaction times and use continuous flow technology that would facilitate and intensify scale-up. In sum, the research herein contributes to efforts to promote sustainable and greener methods of synthesis for fine chemicals.