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Mostrando ítems 1-10 de 25
Artículo
Nanometer-Scale Precision Tuning of 3D Photonic Crystals Made Possible Using Polyelectrolytes with Controlled Short Chain Length and Narrow Polydispersity
(Wiley-VCH, 2014)
Nanometer‐scale tuning of the optical properties of prefabricated photonic crystals is achieved via layer‐by‐layer assembly of polyelectrolytes in the interstitial spaces of the photonic lattice. The key to the approach ...
Artículo
Microwave-assisted synthesis of biocompatible europium-doped calcium hydroxyapatite and fluoroapatite luminescent nanospindles functionalized with poly(acrylic acid)
(American Chemical Society, 2013-02-12)
Europium-doped calcium hydroxyapatite and fluoroapatite nanophosphors functionalized with poly(acrylic acid) (PAA) have been synthesized through a one-pot microwave-assisted hydrothermal method from aqueous basic solutions ...
Artículo
Angular emission properties of a layer of rare-earth based nanophosphors embedded in one-dimensional photonic crystal coatings
(American Institute of Physics, 2011)
The angular properties of light emitted from rare-earth based nanophosphors embedded in optical resonators built in one-dimensional photonic crystal coatings are herein investigated. Strong directional dependence of the ...
Artículo
Design and realization of transparent solar modules based on luminescent solar concentrators integrating nanostructured photonic crystals
(John Wiley & Sons, 2015)
Herein, we present a prototype of a photovoltaic module that combines a luminescent solar concentrator integrating one-dimensional photonic crystals and in-plane CuInGaSe2 (CIGS) solar cells. Highly uniform and wide-area ...
Artículo
Environmental Effects on the Photophysics of Organic–Inorganic Halide Perovskites
(American Chemical Society, 2015-06-18)
The photophysical properties of films of organic–inorganic lead halide perovskites under different ambient conditions are herein reported. We demonstrate that their luminescent properties are determined by the interplay ...
Artículo
Integration of Photonic Crystals into Flexible Dye Solar Cells: A Route toward Bendable and Adaptable Optoelectronic Devices Displaying Structural Color and Enhanced Efficiency
(Wiley-Blackwell, 2016)
Herein is presented what is believed to be the fi rst example of integration of photonic structures in a fl exible optoelectronic device. The resulting devices may be designed to display any color in the visible range and, ...
Artículo
Optical analysis of CH3NH3SnxPb1–xI3 absorbers: a roadmap for perovskite-on-perovskite tandem solar cells
(Royal Society of Chemistry, 2016)
Organic–inorganic perovskite structures in which lead is substituted by tin are exceptional candidates for broadband light absorption. Herein we present a thorough analysis of the optical properties of CH3NH3SnxPb1–xI3 ...
Artículo
Adaptable Ultraviolet Refl ecting Polymeric Multilayer Coatings of High Refractive Index Contrast
(Wiley-VCH, 2015)
A synthetic route is demonstrated to build purely polymeric nanostructured multilayer coatings, adaptable to arbitrary surfaces, and capable of effi ciently blocking by refl ection a targeted and tunable ultraviolet (UV) ...
Artículo
A panchromatic modification of the light absorption spectra of metal–organic frameworks
(Royal Society of Chemistry (Great Britain), 2016)
The optical absorption of UiO-66–NH2 MOF was red-shifted using a diazo-coupling reaction. The modifications performed with naphthols and aniline yielded reddish samples, and the modifications with diphenylaniline yielded ...
Artículo
Materials chemistry approaches to the control of the optical features of perovskite solar cells
(Royal Society of Chemistry, 2017)
Perovskite solar cells have revolutionized the field of photovoltaics. Apart from their impressive photo-conversion efficiencies, the ease of their fabrication – principally when carried out by solution processing – has ...