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PACKED COLLOIDAL SPHERES FOR THIN FILM STRUCTURATION; TOWARDS MODULATION AND TUNABILITY OF SURFACE PLASMON RESONANCE


BERCEA ADRIAN*, CONSTANTINESCU CATALIN, DUMAS-BOUCHIAT FREDERIC, CHAMPEAUX CORINNE
1 Univ. Limoges, CNRS, IRCER, UMR 7315, F-87000 Limoges, France
*adrian.bercea@unilim.fr

Issue:

PLUMEE, Number 1, Volume IX

Section:

Issue No.1 - Volume 9 (2019)

Abstract:

This work is devoted to present developments of metallic triangular

nano/micropatterns arrays based on self-assembly of closely packed colloidal polystyrene

microspheres, using a combination of colloidal lithography and Pulsed Laser Deposition

(PLD) process. Au and Ir metal triangular structures with thicknesses of 50 - 100 nm,

directly fabricated on Al2O3 or embedded in a VO2 matrix have been studied in order to

tune the position and intensity of localized surface plasmon resonances (LSPR). The

position of the LSPR depends strongly of the size and the shape of the metallic patterns, the

spacing between them and the surrounding dielectric environment.

Keywords:

LSPR, PLD, Colloidal lithography, Au and Ir LSPR, vanadium dioxide.

Code [ID]:

PLUMEE201901V09S01A0002 [0004970]

Note:

DOI:

Full paper:

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