Results 51 to 60 of about 466 (242)

Sonochemical effects on ZnO particles

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2014
La variedad de aplicaciones tecnológicas relacionadas a los dispositivos basados en óxidos semiconductores nanoestructurados ha despertado un gran interés en la comunidad científica, haciendo con que los estudios relacionados a estos materiales han ...
Bruna C. Costa   +2 more
doaj  

Highly Visible Photoluminescence from Ta-Doped Structures of ZnO Films Grown by HFCVD

open access: yesCrystals, 2018
Tantalum-doped ZnO structures (ZnO:Ta) were synthesized, and some of their characteristics were studied. ZnO material was deposited on silicon substrates by using a hot filament chemical vapor deposition (HFCVD) reactor.
Víctor Herrera   +9 more
doaj   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

Caracterización estructural y magnética de semiconductores magnéticos diluidos Zn(1-x)Ni(x)O sinterizados mediante reacción sólida por microondas

open access: yesPublicaciones en Ciencias y Tecnología, 2021
Actualmente, los semiconductores con propiedades magnéticas representan materiales de interés científico por sus potenciales aplicaciones dentro del campo de la espintrónica, dado el ferromagnetismo que ellos pueden exhibir a temperatura ambiente.
Keibys Eduardo Colmenares   +1 more
doaj  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Fast Formation of Surface Oxidized Zn Nanorods and Urchin-Like Microclusters

open access: yesAdvances in Materials Science and Engineering, 2014
Entangled Zn-ZnO nanorods and urchin-like microstructures were synthesized by the hot filament chemical vapor deposition technique at 825 and 1015°C, respectively.
R. López   +9 more
doaj   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

SYNTHESIS AND CHARACTERIZATION OF Cu2SnSe3 THIN FILMS COMPOUND USED IN THE FABRICATION OF SOLAR CELLS

open access: yesMomento, 2013
The purpose of this paper is to contribute to the development of materials used in the fabrication of solar cells based on Kesterite type compounds which are being widely investigated because they possess excellent photovoltaic properties and their ...
Francisco Guzman   +3 more
doaj  

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

open access: yesAdvanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya   +6 more
wiley   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

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