Integrating photoluminescent nanomaterials with photonic nanostructures

MARTÍNEZ, E.D.; PRADO, A.; GONZÁLEZ, M.; ANGUIANO, S.; TOSI, L.; ALARCÓN, L. SALAZAR; PASTORIZA, H.

JOURNAL OF LUMINESCENCE

ELSEVIER SCIENCE BV

Año: 2021 vol. 233

0022-2313

Photoluminescence is a light-matter interaction phenomenon of utmost interest for research and technologicalinnovation. Luminescent materials posses several characteristics, such as the quantum yield, Stokes shift,bandwidth, energy transfer coefficients and lifetime of excited states, among others. These factors, thoughdependent on intrinsic properties of each material, are not immutable; they are highly sensitive to the opticalconstraints imposed by its surroundings. In particular, nearby surfaces can modify the local electromagnetic fieldand the density of optical states, strongly affecting the luminescent emission spectrum, intensity and direc­tionality. Different strategies have been developed to control the emission of molecular or nano-sized photo­luminescent materials, making use of recent progress in the field of plasmonics, photonic crystals and opticalmicrocavities. The purpose of this article is to summarize the fundamental underlying physical concepts leadingto modified photoluminescent properties, as well as to review the latest experimental advances aiming for thesynergistic combination of luminescent nano-sources and either photonic or plasmonic nanostructures. Specialattention to hybrid structures, such as those combining plasmonics and photonic crystals, will also be addressed.