2026-09-23T10:15:01Zhttps://orbi.uliege.be/oai/requestoai:orbi.ulg.ac.be:2268/1676362026-09-01T13:28:47Zcom_f00col_f03class_g01class_g04
doctoral thesis
http://purl.org/coar/resource_type/c_db06
info:eu-repo/semantics/doctoralThesis
restricted access
http://purl.org/coar/access_right/c_16ec
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Chimie Intégrative dédiée aux morphosynthèses de matériaux composites multi-échelles et étude de leurs applications en photoluminescence, photocatalyse et photovoltaïque
Integrative Chemistry based morphosyntheses of hierarchical composite materials for photovoltaic, photocatalysis and photoluminescence applications
Kinadjian, Natacha
Henrist, Catherine
Backov, Rénal
2014-04-08
https://orbi.uliege.be/handle/2268/167636
info:hdl:2268/167636
en
sol-gel
titanium dioxide
zinc oxide
material shaping
fibers
integrative chemistry
photocatalysis
polypyrrole
liquid crystals
Physical, chemical, mathematical & earth Sciences
Chemistry
Physics
Physique, chimie, mathématiques & sciences de la terre
Chimie
Physique
The shaping of functional materials and the control of their texture at all length scales are sine qua non conditions for the improvement of current systems. This PhD project consists in creating complex solid architectures using interdisciplinary methods such as sol-gel chemistry or complex fluids physics. Therefore, it is possible to synthesize Titanium Dioxide macroscopic fibers or films which possess a hierarchical porosity. This organization allows the optimization of the matter transport (liquid/gaz) for air depollution application (photocatalysis) or dye-sensitized solar cells. In another project, we were able to control the alignment of zinc oxide nanorods within a macroscopic fiber. This alignment provides to the fiber an anisotropic photoluminescence behavior which can be useful for switching devices application. Finally, we synthesized anisotropic particles and nano-sheets of polypyrrole (conducting polymer) in order to obtain smooth thin films presenting interesting electrical properties. The objective was to use them as electrolyte and/or electrode in dye-sensitized solar cells.
ULiège - Université de Liège