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Nano-antennes plasmoniques avec des diodes moléculaires rectifiantes pour la captation d'énergie et la photodétection. Synthèse de dérivés de ferrocène par chimie click fonctionnant comme diodes moléculaires pour application rectenna.

Abstract : The sun is an unlimited source of power and seems to be a perfect solution for the fight against global warming and reduction of fossil fuel. However, this last years, the efficiencies associated to the photovoltaic technologies are moderate (< 50 %) and to stabilize. Considering the wave–particle duality, it is possible to use the wave properties of the light in order to produce electricity. Such object called rectenna solar cells was described theoretically in the 70s. The rectenna consists in the association of an antenna with a diode. Experimental realisation of rectenna was impossible at the beginning, since the technologies of 70s could not permit reproducible fabrication of nanometric antenna and nanometric diode, able of rectifying very high frequencies (more than hundreds of THz). Recently innovative design of rectenna solar cells at IM2NP was developed, where antenna was deeply studied. On the contrary, the diode element in such design was not deeply studied. The subject of this PhD is the synthesis and characterisation of these diodes. It is ferrocene based molecular diodes, so where the molecules act as a diode. They are pioneering since it is possible to anchor them to two different metal surfaces in controlled way. Such control is done by a reaction on the metal surface. The reaction chosen belongs to the click chemistry. The subject of this PhD is to synthesize the molecular diode and then to build the diode on surface in controlled way. First by describing the rectenna and their components. Secondly describing the tools used in the project to realize the diode. Then the different synthesis of the new ferrocene based molecular diode will be presented. Finally, the characterisation and the fabrication of the diode on real devices will be discussed. This PhD has a multidisciplinary aspect where chemists, electrochemists and physicists work together in order to create an object in technological rupture in technology of production of electricity.
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Submitted on : Wednesday, October 28, 2020 - 12:52:12 PM
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Damien Brunel. Nano-antennes plasmoniques avec des diodes moléculaires rectifiantes pour la captation d'énergie et la photodétection. Synthèse de dérivés de ferrocène par chimie click fonctionnant comme diodes moléculaires pour application rectenna.. Chimie organique. Aix Marseille Université, 2020. Français. ⟨tel-02964514⟩

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