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Mostrando ítems 21-30 de 36
Artículo
Photonic Tuning of the Emission Color of Nanophosphor Films Processed at High Temperature
(Wiley, 2017)
Photonics offers new possibilities to tailor the photoluminescence process in phosphor-converted light emitting diodes. Herein, it is demonstrated that the emission color of thin layers of rare-earth doped nanocrystals can ...
Artículo
Design and Realization of a Novel Optically Disordered Material: A Demonstration of a Mie Glass
(Wiley-Blackwell, 2017)
Herein, a diffusive material presenting optical disorder is introduced, which represents an example of a Mie glass. Comprising spherical crystalline TiO nanoparticles randomly dispersed in a mesoporous TiO matrix, it is ...
Artículo
Environmentally responsive nanoparticle-based luminescent optical resonators
(Royal Society of Chemistry, 2010)
In this work, we demonstrate that optical resonators built using all-nanoparticle-based porous building blocks provide a responsive multifunctional matrix, totally different emission spectra being attained from the same ...
Artículo
Dye sensitized solar cells as optically random photovoltaic media
(Royal Society of Chemistry (Great Britain), 2014)
n order to enhance optical absorption, light trapping by multiple scattering is commonly achieved in dye sensitized solar cells by adding particles of a different sort. Herein we propose a theoretical method to find the ...
Artículo
Absorption enhancement in methylammonium lead iodide perovskite solar cells with embedded arrays of dielectric particles
(Optical Society of America, 2018)
In the field of hybrid organic-inorganic perovskite based photovoltaics, there is a growing interest in the exploration of novel and smarter ways to improve the cells light harvesting efficiency at targeted wavelength ...
Artículo
Full solution processed mesostructured optical resonators integrating colloidal semiconductor quantum dots
(Royal Society of Chemistry, 2015)
Herein we show a solution based synthetic pathway to obtain a resonant optical cavity with embedded colloidal semiconductor quantum dots (CSQDs). The optical cavity pore network, surrounded by two dense Bragg mirrors, was ...
Artículo
Resonant Photocurrent Generation in Dye-Sensitized Periodically Nanostructured Photoconductors by Optical Field Confinement Effects
(American Chemical Society, 2013-05-29)
Herein we show experimental evidence of resonant photocurrent generation in dye-sensitized periodically nanostructured photoconductors, which is achieved by spectral matching of the sensitizer absorption band to different ...
Artículo
Selective UV Reflecting Mirrors Based on Nanoparticle Multilayers
(Wiley-VCH, 2013)
A new type of nanostructured selective ultraviolet (UV) reflecting mirror is presented. Periodic porous multilayers with photonic crystal properties are built by spin-coating-assisted layer-by-layer deposition of colloidal ...
Artículo
Strong Quantum Confinement and Fast Photoemission Activation in CH3NH3PbI3 Perovskite Nanocrystals Grown within Periodically Mesostructured Films
(Wiley, 2017)
In this Communication, a synthetic route is demonstrated to obtain stabilized MAPbI3 nanocrystals embedded in thin metal oxide films that display well-defined and adjustable quantum confinement effects over a wide range ...
Artículo
Plasmonic Nanoparticles as Light-Harvesting Enhancers in Perovskite Solar Cells: A User’s Guide
(American Chemical Society, 2016)
In this Perspective we discuss the implications of employing metal particles of different shape, size, and composition as absorption enhancers in methylammonium lead iodide perovskite solar cells, with the aim of establishing ...