| Titre : |
Synthesis and characterization of molecular materials for organic photovoltaic application |
| Type de document : |
texte imprimé |
| Auteurs : |
Bui, Thanh-Tuan, Auteur ; Kathleen Moineau Chane-Ching, Directeur de thèse ; Bénédicte Garreau-de-Bonneval, Directeur de thèse |
| Année de publication : |
2010 |
| Langues : |
Anglais (eng) |
| Tags : |
COORDINATION CHEMISTRY ORGANIC CHEMISTRY MOLECULAR MATERIALS ORGANIC PHOTOVOLTAICS BISDITHIOLENE METAL COMPLEX LIQUID CRYSTAL NEAR INFRARED |
| Résumé : |
"This work is part of a project funded by the ANR dedicated to the design of a new type of organic photovoltaic cell. The goal is to design a new device architecture, bilayer or multilayer, composed of two columnar liquid crystalline molecular materials (electron donor and electron acceptor). This thesis describes the synthesis and characterization of new electron acceptor materials combining several properties: thermal stability and stability in air, capability of self-organize into columnar liquid crystals, strong absorption in near infrared and infrared spectral domain. The choice is the neutral nickel bisdithiolene complexes. Several series of complexes have been synthesized with dpedt (diphenyl-ethylenedithiolate) ligands. Their physicochemical behaviors were characterized by using different techniques: differential thermal analysis and thermo-gravimetric, polarized light microscopy, cyclic voltammetry and square wave voltammetry, absorption spectroscopy. The results show that they are all very stable in air and heat until 300 °C, they absorb strongly between 750 nm to 1100 nm and they have high electron affinity. In addition, some of these compounds show columnar liquid crystalline phase around 80 to 110 °C, metastable at room temperature in the condensed state. In particular, it is shown that the HOMO-LUMO energy gap of such complexes can be modulated as a function of functional groups grafted on the dpedt ligands. All these properties make these compounds very interesting for photovoltaic application." |
| Document : |
Thèse de Doctorat |
| Etablissement_delivrance : |
Université de Toulouse 3 |
| Date_soutenance : |
21/07/2010 |
| Ecole_doctorale : |
Sciences de la matière (SdM) |
| Domaine : |
Chimie Moléculaire |
| Localisation : |
LCC |
| En ligne : |
http://thesesups.ups-tlse.fr/1003/ |
Synthesis and characterization of molecular materials for organic photovoltaic application [texte imprimé] / Bui, Thanh-Tuan, Auteur ; Kathleen Moineau Chane-Ching, Directeur de thèse ; Bénédicte Garreau-de-Bonneval, Directeur de thèse . - 2010. Langues : Anglais ( eng)
| Tags : |
COORDINATION CHEMISTRY ORGANIC CHEMISTRY MOLECULAR MATERIALS ORGANIC PHOTOVOLTAICS BISDITHIOLENE METAL COMPLEX LIQUID CRYSTAL NEAR INFRARED |
| Résumé : |
"This work is part of a project funded by the ANR dedicated to the design of a new type of organic photovoltaic cell. The goal is to design a new device architecture, bilayer or multilayer, composed of two columnar liquid crystalline molecular materials (electron donor and electron acceptor). This thesis describes the synthesis and characterization of new electron acceptor materials combining several properties: thermal stability and stability in air, capability of self-organize into columnar liquid crystals, strong absorption in near infrared and infrared spectral domain. The choice is the neutral nickel bisdithiolene complexes. Several series of complexes have been synthesized with dpedt (diphenyl-ethylenedithiolate) ligands. Their physicochemical behaviors were characterized by using different techniques: differential thermal analysis and thermo-gravimetric, polarized light microscopy, cyclic voltammetry and square wave voltammetry, absorption spectroscopy. The results show that they are all very stable in air and heat until 300 °C, they absorb strongly between 750 nm to 1100 nm and they have high electron affinity. In addition, some of these compounds show columnar liquid crystalline phase around 80 to 110 °C, metastable at room temperature in the condensed state. In particular, it is shown that the HOMO-LUMO energy gap of such complexes can be modulated as a function of functional groups grafted on the dpedt ligands. All these properties make these compounds very interesting for photovoltaic application." |
| Document : |
Thèse de Doctorat |
| Etablissement_delivrance : |
Université de Toulouse 3 |
| Date_soutenance : |
21/07/2010 |
| Ecole_doctorale : |
Sciences de la matière (SdM) |
| Domaine : |
Chimie Moléculaire |
| Localisation : |
LCC |
| En ligne : |
http://thesesups.ups-tlse.fr/1003/ |
|  |
Synthesis and characterization of molecular materials for organic photovoltaic application
