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Sapphire nanophotonics: Fabrication challenges and optical properties
Micro and Nano Engineering, 2022 Sapphire has many optical applications in nanophotonics and optoelectronic devices due to its high index, broadband transparency, and chemical and physical stability. However, sapphire is notoriously difficult to process, cut, and micromachine.
Yi-An Chen +3 more
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Advanced Engineering Materials, EarlyView.This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych +7 more
wiley +1 more source
BMC Health Services ResearchBackground Operations Management meetings in NHS hospitals provide an opportunity for operational and clinical staff to monitor demand and capacity and manage patient flow. These meetings play an important role in the achievement of resilient performance
L. Sutton +10 more
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Wafer scale BN on sapphire substrates for improved graphene transport
Scientific Reports, 2018 Wafer scale (2”) BN grown by metal organic chemical vapor deposition (MOCVD) on sapphire was examined as a weakly interacting dielectric substrate for graphene, demonstrating improved transport properties over conventional sapphire and SiO2/Si substrates.
Shivashankar Vangala +3 more
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AIP Conference Proceedings, 2012 The spall strength of c-cut sapphire has been measured as a function of the load duration and peak stress. In experiments, the VISAR particle velocity histories at the interface between the sapphire samples and a water or LiF window were recorded. The peak shock stress was varied from 17.3 GPa up to 21.4 GPa that is below the Hugoniot elastic limit ...
Savinykh, Andrey S. +2 more
openaire +3 more sources
Heat Conduction Modulation in Incommensurate Twisted Stacking of Transition‐Metal Dichalcogenide
Advanced Functional Materials, EarlyView.The interlayer thermal conductance in twisted bilayer TMDs is initially investigated experimentally by the thermoreflectance method. The overlap of lattice vibrations within individual layers and the interlayer interactions, as elucidated through both Raman spectroscopy and molecular dynamics simulations, are demonstrated to be critical factors in ...
Bin Xu +6 more
wiley +1 more source
Nanomaterials, 2023 The demand for highly sensitive and selective gas sensors has been steadily increasing, driven by applications in various fields such as environmental monitoring, healthcare, and industrial safety.
Ray-Hua Horng +10 more
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Advanced Functional Materials, EarlyView.In this work, a new tetracene derivative, 5,11‐di(thiophen‐2‐yl)tetracene (2T‐Tc) is introduced, exhibiting enhanced physical and chemical stability, and retaining favorable singlet fission kinetics with near unity triplet pair yield in thin films.
Jieun Lee +11 more
wiley +1 more source
Interface Characteristics of Sapphire Direct Bonding for High-Temperature Applications
Sensors, 2017 In this letter, we present a sapphire direct bonding method using plasma surface activation, hydrophilic pre-bonding, and high temperature annealing. Through the combination of sapphire inductively coupled plasma etching and the direct bonding process, a
Wangwang Li +9 more
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