Results 31 to 40 of about 14,472 (257)
Advanced Science, EarlyView.Hot‐carrier transport in metal halide perovskites is investigated using spatiotemporally‐resolved photoluminescence microscopy. Mesa‐shaped MAPbBr3 microdisks exhibit anomalous super‐diffusive carrier propagation on nanosecond timescales, driven by hot‐carrier stabilization and strong carrier–phonon coupling.
Nithin Pathoor +2 more
wiley +1 more source
Descripción de un milodóntido del Blancano temprano de la Mesa Central de México
Revista Mexicana de Ciencias Geológicas, 2019 En los sedimentos lacustres del área de Rancho Viejo en San Miguel de Allende, Guanajuato, se colectaron restos fósiles de un milodóntido con modificaciones morfológicas diferentes a las formas descritas para América del Norte, permitiendo determinarlo ...
Marisol Montellano-Ballesteros +1 more
doaj
Engineering Slow‐Carrier Interfacial Recombination Enables Tailored Spectral Response
Advanced Science, EarlyView.This work demonstrates that weak‐drift slow carriers are preferentially captured at generic semiconductor surfaces/interfaces and recombine. This process is manipulated to achieve tailored spectral response. A tens of µm‐wide depletion region is created to observe surface collection rates for photocarriers generated at different positions.
Yibo Zhang +5 more
wiley +1 more source
Estudo do fluxo neutrônico no reator IPR-R1 com o MCNPX
Brazilian Journal of Radiation Sciences, 2016 Neste trabalho utilizou-se o código computacional MCNPX, uma das versões mais recentes do código de transporte MCNP, com o objetivo de estudar a distribuição do fluxo e sua fluência neutrônica em função da energia em dois dispositivos de irradiação do ...
Júlio Ângelo de Souza Melo +2 more
doaj +1 more source
Biotic stress: a significant contributor to organic aerosol in Europe? [PDF]
Atmospheric Chemistry and Physics, 2014 We have investigated the potential impact on organic aerosol formation from biotic stress-induced emissions (SIE) of organic molecules from forests in Europe (north of lat. 45° N). Emission estimates for sesquiterpenes (SQT), methyl salicylate (MeSA) and
R. Bergström +4 more
doaj +1 more source
Low Thermal Resistance Architectures for AlGaN‐Based Semiconductor Devices
Advanced Electronic Materials, EarlyView.Engineering channel thickness and substrate material significantly improves thermal management in AlGaN RF devices. A 5 nm AlGaN channel integrated on an AlN substrate achieved a record‐low thermal resistance of 3.96 K·mm${\rm K}\cdot{\rm mm}$/W, representing an 88.7% reduction compared with 500 nm AlGaN‐on‐sapphire devices.
Kidus Guye +6 more
wiley +1 more source
Revista Mexicana de Ciencias Geológicas, 2023 El complejo volcánico de Ahualulco (CVA), en la región meridional de la Mesa Central de México, consta de un conjunto de rocas volcánicas cenozoicas que incluye andesitas emplazadas en el Eoceno medio, seguidas de lavas dacíticas y riolíticas, al igual ...
Carolina Isabel Latorre-Correa +3 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.A high‐performance strain‐compensated InGaAs/GaAsP superlattice SWIR photodetector was successfully grown by MOCVD on a scalable 100 mm GaAs platform. Combining excellent structural quality with strong optoelectronic performance, the device delivers a low dark current density of 2.3 × 10−7 A/cm2 and a detectivity of 1.9 × 1011 Jones at 1100 nm ...
Rémy Tribout +19 more
wiley +1 more source
Richness and endemism of the freshwater fishes of Mexico
Journal of Threatened Taxa, 2014 A study of richness and endemism of the freshwater fishes of Mexico, was carried out in order to identify hotspots and inform conservation efforts.
T. Contreras-MacBeath +4 more
doaj +1 more source
Advanced Energy Materials, EarlyView.A flexible InGaP/GaAs/InGaAs triple‐junction platform encapsulated with ultrathin glass enables unassisted electrocatalysis and space applications by providing robust protection against chemically aggressive and radiation‐rich environments. This work establishes a unified III–V multijunction photovoltaic platform that bridges space photovoltaics and ...
Sukkyu Hong +10 more
wiley +1 more source