Artículo
Photoluminescence quenching of dye molecules near a resonant silicon nanoparticle
Autor/es | Zyuzin, Mikhail V.
Baranov, Denis G. Escudero Belmonte, Alberto Chakraborty, Indranath Tsypkin, Anton Ushakova, Elena V. Kraus, Florain Parak, Wolfgang J. Makarov, Sergey V. |
Departamento | Instituto de Ciencia de Materiales de Sevilla (ICMS) – CIC Cartuja |
Fecha de publicación | 2018-04-17 |
Fecha de depósito | 2018-05-28 |
Publicado en |
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Resumen | Luminescent molecules attached to resonant colloidal particles are an important tool to study light-matter interaction. A traditional approach to enhance the photoluminescence intensity of the luminescent molecules in such ... Luminescent molecules attached to resonant colloidal particles are an important tool to study light-matter interaction. A traditional approach to enhance the photoluminescence intensity of the luminescent molecules in such conjugates is to incorporate spacer-coated plasmonic nanoantennas, where the spacer prevents intense non-radiative decay of the luminescent molecules. Here, we explore the capabilities of an alternative platform for photoluminescence enhancement, which is based on low-loss Mie-resonant colloidal silicon particles. We demonstrate that resonant silicon particles of spherical shape are more efficient for photoluminescence enhancement than their plasmonic counterparts in spacer-free configuration. Our theoretical calculations show that significant enhancement originates from larger quantum yields supported by silicon particles and their resonant features. Our results prove the potential of high-index dielectric particles for spacer-free enhancement of photoluminescence, which potentially could be a future platform for bioimaging and nanolasers. |
Identificador del proyecto | 17-19-01637
14.Y26.31.0010 267226 794/28-1 |
Cita | Zyuzin, M.V., Baranov, D.G., Escudero Belmonte, A., Chakraborty, I., Tsypkin, A., Ushakova, E.V.,...,Makarov, S.V. (2018). Photoluminescence quenching of dye molecules near a resonant silicon nanoparticle. Scientific Reports, 8 (1), 6107-1-6107-7. |
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