Descripción del proyecto
Un control preciso de la dimensión de los poros en nanopartículas permite nuevos materiales plasmónicos
La resonancia de plasmones superficiales localizados es la oscilación colectiva de electrones de banda de conducción en resonancia con las oscilaciones de la luz incidente (campo electromagnético) que se observa en la vecindad de las nanopartículas, con lo que se logran propiedades ópticas nunca vistas en la naturaleza. Los poros de las nanopartículas aumentan notablemente la relación entre superficie y volumen, además de poder aumentar este efecto para nuevas funcionalidades. Hasta la fecha, dicho potencial se ha visto limitado por las técnicas disponibles para fabricar nanopartículas porosas. En el proyecto PlasmoPore, que cuenta con el apoyo de las Acciones Marie Skłodowska-Curie, se desarrolla un nuevo método de nanofabricación para lograr un mejor control de la dimensión del poro, posibilitando nuevas aplicaciones en la detección de hidrógeno y la catálisis.
Objetivo
"Localized surface plasmon resonance (LSPR) occurring in metal nanoparticles has opened the door to the realization of fascinating novel concepts and technologies. This is possible due to the unique properties of the light-metal nanoparticles interaction mediated by LSPR, for example the efficient light absorption and scattering by metal nanoparticles at resonance, as well as enhanced electromagnetic fields in the vicinity of the nanoparticles. A particularly interesting, yet rarely explored nanoparticle feature with great potential for the creation of plasmonic nanostructures with novel functionalities is porosity, which exhibits numerous so-called ""hotspots"": regions where the local electromagnetic field is greatly enhanced with respect to the incoming field. Combined with large surface-to-volume ratios, porous metal nanoparticles offer potentials for e.g. sensing and plasmon-mediated catalysis applications. Despite these prospects, porous nanoparticles have so far been rarely exploited due to the fact that they are produced via colloidal synthesis, which introduces several limitations.
The objective of the proposed research is to establish a nanofabrication route, by combining nanolithography and wet chemical route, to produce supported array of porous plasmonic nanoparticles with excellent dimension control and utilize these nanostructures in the fields of plasmon-mediated catalysis and plasmonic hydrogen sensing. The action will combine the researcher expertise in nanofabrication, experimental plasmonics and hydrogen sensing and the supervisor and host institute experiences in wet chemistry, single-particle spectroscopy and plasmon-mediated catalysis. The successful results of this action will contribute to the development of new class of materials, that is supported porous nanoparticles, which extends the library of the functional plasmonic materials with wide applications for example in sensing and plasmon-activated catalysis."
Ámbito científico
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Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
1081 HV Amsterdam
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