Results 131 to 140 of about 5,561 (296)

Phonons and free-carrier properties of binary, ternary, and quaternary group-III nitride layers measured by infrared Spectroscopic Ellipsometry

open access: yes, 2003
This work reviews recent ellipsometric investigations of the infrared dielectric functions of binary, ternary, and quaternary group-III nitride films. Spectroscopic Ellipsometry in the mid-infrared range is employed for the first time to determine phonon
Monemar, Bo,   +20 more
core   +1 more source

Recent Strategies Toward Durable and Ion‐Tolerant Transition Metal‐Based Electrocatalysts in Seawater Electrolysis

open access: yesCarbon Energy, EarlyView.
Recent strategies address these challenges through ion‐specific regulation, encompassing chloride‐tolerant and chloride‐regulating anodes together with cathode designs that suppress OH− accumulation and Mg2+/Ca2+ coupling. This ion‐management‐oriented framework provides general guidelines for achieving stable, selective, and scalable seawater ...
Lina Li   +5 more
wiley   +1 more source

Structural and optical analysis of GaN and InxGa1-xN photodetectors fabricated by PEALD on silicon

open access: yesResults in Engineering
The optical, structural, morphological and chemical properties of Gallium nitride (GaN) and Indium Gallium nitride (InxGa1-xN) thin films grown on Si (100) by plasma-assisted atomic layer deposition (PEALD) technique at a temperature of 300°C.
D. Tepatzi-Xahuentitla   +10 more
doaj   +1 more source

Ordered phases in ternary wurtzite group-III nitrides: A first-principles study

open access: yes
A first-principles-based lattice model is applied to investigate the ordered phases of mixed group-III nitride ternary alloys. The model surveys the atomistic configurations with the lowest formation enthalpy for a wide range of compositions.
Mizuseki, H.   +6 more
core   +1 more source

Synthesis and structure of beta-Ca3Ga2N4, a ternary nitride with two interpenetrating three dimensional nets

open access: yes, 1998
We report the structure of a second polymorph of the ternary calcium gallium nitride Ca3Ga2N4, synthesized as crystals from the elements in sealed niobium tubes at 760°C using a Na/Ca melt as the growth medium.
DiSalvo, FJ, Clarke, SJ, Clarke, Simon
core   +1 more source

Multifunctional Design of Solid Polymer Electrolytes: Paving the Way for High‐Performance All‐Solid‐State Batteries

open access: yesCarbon Energy, EarlyView.
This review provides a comprehensive and systematic overview of the multifunctional design strategies for solid polymer electrolytes (SPEs), a pivotal component for enabling high‐performance all‐solid‐state batteries (ASSBs). It begins with a detailed classification of SPE systems and elaborates on their respective molecular design principles. The work
Bin Man   +11 more
wiley   +1 more source

Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design

open access: yesCarbon Energy, EarlyView.
Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan   +15 more
wiley   +1 more source

A new ternary nitride La2GaN3: Synthesis and crystal structure

open access: yes, 2008
International audienceThe ternary nitride La2GaN3 was synthesized from the elements and an excess of sodium and gallium at 900°C in a sealed niobium tube. La2GaN3 is yellow colored and crystallizes with the Ba2ZnO3 structure [monoclinic space group C2/c (
Disalvo, Francis,, Cheviré, François
core   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

open access: yesCarbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang   +14 more
wiley   +1 more source

Beyond Activity: The Unified Framework of the Sabatier Principle to Guide Rational Design of Durable and Active Electrocatalysts

open access: yesCarbon Energy, EarlyView.
In this review, a unified framework of the Sabatier principle is applied to a diverse range of catalytic and electrocatalytic systems for advanced clean energy technologies, with a particular focus on the oxygen reduction reaction (ORR). This approach will guide the design and development of highly active and stable catalysts for fuel cells ...
Wanying Zhang   +6 more
wiley   +1 more source

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