International Conference Physics.SPb/2025
Optical materials

Spatially periodic hybrid structures based on opal films coated with $a$-Si:C:H layer: synthesis and emitting properties

S. A. Grudinkin, N. A. Feoktistov, V. G. Golubev, S. I. Pavlov, A. A. Dukin, A. B. Pevtsov

Ioffe Institute, St. Petersburg

Abstract: The luminescent response of a two-dimensional photonic crystal based on a hybrid structure formed from a synthetic opal film covered with an emitting layer of hydrogenated amorphous silicon-carbon alloy has been studied. Spectral-angular dependencies of photoluminescence intensity of the synthesized structure were recorded using spectral Fourier microscopy. In the spectral-angular dependencies of photoluminescence intensity in the visible wavelength range, characteristic peaks were observed, the appearance of which is associated with the interaction of radiation from $a$-Si:C:H nanoclusters with the emitting modes of the two-dimensional photonic crystal, characterized by a low group velocity.

Keywords: photonic crystal, Fourier transform spectral microscopy, photoluminescence, hydrogenated amorphous silicon-carbon alloy.

Received: 23.05.2025
Revised: 19.06.2025
Accepted: 24.10.2025

DOI: 10.61011/OS.2025.10.61945.8015-25