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Nouvelle approche dans l'élaboration de cellules photovoltaïques : réseaux interpénétrés hybrides oxyde-polymère pour hétérojonctions p,n en volume.

Abstract : Recent advances in the field of photovoltaics have led to the emergence of new solar cell technologies. Among them can be found the hybrid solar cells, unfortunately the way such cells are built is still a source of problems. The aim of this phd is to develop two new approaches in the synthesis of hybrid materials as bulk heterojunctions. In first place the titanium dioxide component vas prepared by sol-gel process and its mesostructure was studied, low temperature crystallization was also investigated. Those results were used in order to prepare hybrid materials from preformed polymers. The behavior of polythiophènes with hexyl and carboxylic acid functions were used as well as copolymers bearing both functions. Hybrids without macrosegregations phenomena were obtained using acid bearing homopolymers as well as copolymers. The second approach was about investigating the electrochemical behavior of ferrocene and copper ions inside the mesoporosity, this first study was followed by a study of the electropolymerization of mot and edot inside the porosity in order to prepare hybrid materials. The obtained hybrids were studied in solar cells by measuring the I/V curve as well as the external quantum efficiency, fill factors and efficiencies were also obtained. To conclude, both approaches leaded to hybrid materials with measurable photovoltaic properties.
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https://tel.archives-ouvertes.fr/tel-01615533
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Submitted on : Thursday, October 12, 2017 - 3:04:05 PM
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  • HAL Id : tel-01615533, version 1

Citation

Niki Halttunen. Nouvelle approche dans l'élaboration de cellules photovoltaïques : réseaux interpénétrés hybrides oxyde-polymère pour hétérojonctions p,n en volume.. Matériaux. Université Pierre et Marie Curie - Paris 6, 2015. Français. ⟨NNT : 2015PAO66416⟩. ⟨tel-01615533⟩

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