Results 41 to 50 of about 2,632 (244)
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
Góndola, Enseñanza y Aprendizaje de las Ciencias, 2015 Este libro de Esperanza Aguilar, Ivan Florez y Milton Florez, pretende dar a conocer algunos habitos y consejos para la vida universitaria centrandose en estudiantes que estan comenzando carrera.
Wendy Dayana Saldarriaga López
doaj +1 more source
2D Abrupt Nano‐Junctions Blending sp–sp2 Bonds on Atomically Precise Heterostructures
Advanced Materials, EarlyView.A lateral heterostructure between atomically precise sp–sp2$^2$ metalated graphdiyne and sp2$^2$ graphene nanoribbons is realized by on‐surface synthesis and investigated by STM and DFT. The impact of on‐surface synthesis byproducts on covalent junction formation yield is unveiled.
Alice Cartoceti +10 more
wiley +1 more source
RECIE Revista Electrónica Científica de Investigación Educativa, 2019 El diagnóstico es resultado de una investigación educativa, que en su primera etapa estudia el funcionamiento de los Consejos Técnicos Regionales (CTR) de educación básica en el marco del Modelo de Gestión Regional, Hidalgo (MGRH), que permitirá en la ...
Manuel Toledano Pérez
doaj +1 more source
Crossover From Excitonic to Bulk Emission in Metal Halide Perovskite Nanocomposites
Advanced Optical Materials, EarlyView.A transition from excitonic to free‐charge recombination is uncovered in perovskite nanocomposites as a function of nanostructure size using PLQY(R, F) mapping as a function of excitation fluence (F) and repetition rate (R). These findings demonstrate that PLQY(R, F) mapping serves as a powerful and non‐invasive tool to extract quantitative information
Miriam Minguez‐Avellan +5 more
wiley +1 more source
Angewandte Chemie, EarlyView.Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko +14 more
wiley +2 more sources
Underground Signals: The Ecological Power of Root Volatiles
Advanced Science, EarlyView.Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao +31 more
wiley +1 more source
REVISTA CIENTÍFICA (INSTITUTO DE INVESTIGACIONES QUÍMICAS Y BIOLÓGICAS. FACULTAD DE CIENCIAS QUÍMICAS Y FARMACIA. UNIVERSIDAD DE SAN CARLOS DE GUATEMALA., 2023 CONSEJO ...
Zambrano Villalba, Msc. Carmen +1 more
+6 more sources
Política y ritual: la unión de los reinos en el Corpus madrileño de la década de 1640
Memoria y Civilización, 2000 This article discusses a ritual conflict which arose among the presidentes of the royal councils in mid-seventeenth-century Madrid. It dealt with the privilege of using a type of seat (the sitial) on public occasions, but had its most significant ...
María José del Río Barredo
doaj
Advanced Science, EarlyView.TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park +14 more
wiley +1 more source