Results 81 to 90 of about 986,480 (326)

Ferromagnetism in Diluted Magnetic Semiconductor Heterojunction Systems

open access: yes, 2002
Diluted magnetic semiconductors (DMSs), in which magnetic elements are substituted for a small fraction of host elements in a semiconductor lattice, can become ferromagnetic when doped.
A H MacDonald   +31 more
core   +1 more source

Effect of incoherent electron-hole pairs on high harmonic generation in an atomically thin semiconductor [PDF]

open access: gold, 2023
Kohei Nagai   +5 more
openalex   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

Multi-phase measurements of structure by microwave waveguide methods

open access: yesФизика волновых процессов и радиотехнические системы, 2018
The possibility of simultaneous determination of parameters from the temperature dependence of the reflection spectrum of microwave (microwave) radiation for magnetic fluids and silicon.
D.A. Usanov   +4 more
doaj  

Synthesis, Structure, Photoluminescence, Energy Transfer Mechanism and Band Gap of a Terbium-Mercury Complex with a 3-D Framework

open access: yesActa Chimica Slovenica, 2018
A novel terbium-mercury compound [Tb(IA)3(H2O)2(Hg2Cl4)]n·nHgCl2·nH2O (1, HIA = isonicotinic acid) was prepared via a hydrothermal reaction and structurally characterized through single-crystal X-ray diffraction technique.
Wei-Sheng Lin   +3 more
doaj   +1 more source

Representative longitudinal optical phonon modes in polar semiconductor quantum dots

open access: yes, 2012
Existence of representative longitudinal optical (LO) phonon modes is theoretically discussed for the case of polar semiconductor cylindrical quantum dots embedded in a semiconductor matrix. The approach is developed within the dielectric continuum model
Barna, Valentin   +2 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Electronic Properties of Atomic Layer Deposited HfO2 Thin Films on InGaAs Compared to HfO2/GaAs Semiconductors

open access: yesCrystals
This paper demonstrates how the treatment of III-V semiconductor surface affects the number of defects and ensures the conformal growth of the high-k dielectric thin film.
Irving K. Cashwell   +3 more
doaj   +1 more source

An Improved Synthesis of Pentacene: Rapid Access to a Benchmark Organic Semiconductor

open access: yesMolecules, 2012
Pentacene is an organic semiconductor used in a variety of thin-film organic electronic devices. Although at least six separate syntheses of pentacene are known (two from dihydropentacenes, two from 6,13-pentacenedione and two from 6,13-dihydro-6,13 ...
Glen P. Miller, Chandrani Pramanik
doaj   +1 more source

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