Plasmonic Sensor exploiting Silica-Gold Nanoparticles embedded into a Mesoporous Silica Topcoat
TRIHAN R. 1, AIMABLE A. 1, ROSSIGNOL F. 1, BOGUCKI O. 2, KOZLOWSKA A. 2, IHLE M. 3, ZIESCHE S. 3, FETLINSKI B. 4, JANASZEK B. 4, KIELISZCZYK M. 4, KACZKAN M. 4, GIEMZA P. 5, SZCZYPA M. 5
1 IRCER – Institute of Research for Ceramics, Limoges, France; 2 ?ukasiewicz IMIF – Institute for Microelectronics and Photonics , Warsaw, Poland; 3 Fraunhofer IKTS – Institute for Ceramic Technologies and Systems , Dresden, Germany; 4 WUT – Warsaw University of Technology , Warsaw, Poland; 5 Teknosystem Co. Ltd, Warsaw, Poland
This research study focuses on the development of a new optical sensor platform. The device is based on a layered doped transparent ceramic pumped with a laser diode and coupled with a functionalized surface plasmon resonance (SPR) structure as an innovative photonic component for both lighting and sensing. Targeted areas are the detection of pollutants in water (Cu, Fe, etc.) or air (CO, NOx, etc.), as well as medical diagnosis.
The core of the lighting component is a doped YAG ceramic, adapted to the desired optical properties, under LED excitation. Light enhancement occurs at the device surface due to the SPR effect. On that purpose, the SPR effect is obtained by adding hybrid gold-silica. In addition, a functionalized mesoporous silica topcoat is also deposited according to the targeted chemical or biological compound.
The presentation will focus on surface functionalization: nanoparticles synthesis, deposition on the surface, mesoporous silica topcoat elaboration. Indeed, different size of gold and silica particles were achieved and used for the study. Comparative synthesis methods allowed to achieve a high coverage of the silica nanoparticles with gold particles. Moreover, the synthesized hybrid particles exhibit quite correct optical properties. In addition, different coatings methods were used (dip coating, spin coating) to deposit the functional particles on different substrates with a mesoporous silica topcoat at the same time. Monolayers and dense packing of particles were obtained. Finally, the research project allowed to build a pre-industrial demonstrator.
Publication: R. Trihan, A. Aimable, F. Rossignol, et al. “Hybrid Gold-Silica Nanoparticles for Plasmonic Applications: a comparison study of synthesis methods for increasing gold coverage“, Heliyon – submitted.
NewILUMIS Project website: https://imif.lukasiewicz.gov.pl/en/new-ilumis/