Results 41 to 50 of about 269,089 (289)

Defect Grating Simulations: Perturbations with AFM-like Tips [PDF]

, 2006
A defect grating in a silicon on insulator waveguide is simulated. We consider spectral changes in the optical transmission when a thin silicon nitride or silicon tip is scanned across the defect.
Hammer, M., Stoffer, R.
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Research progress and preparation method of aluminum nitride powder

Fenmo yejin jishu, 2021
Aluminum nitride has been widely applied for the high thermal conductivity and insulating properties. Nowadays, the global aluminum nitride application market is in the high growth stage as well as the demand for aluminum nitride is growing continuously.
ZHANG Zhi-rui, QIN Ming-li, WU Hao-yang, LIU Chang, JIA Bao-rui, QU Xuan-hui   +5 more
doaj   +1 more source

Boron Nitride Monolayer: A Strain-Tunable Nanosensor

, 2013
The influence of triaxial in-plane strain on the electronic properties of a hexagonal boron-nitride sheet is investigated using density functional theory.
A. Sadeghi, Alem N., Aradi B., Begliarbekov M., Beheshtian J., Blase X., Britnell L., Collins P. G., Di Francia G., Ding Y., F. M. Peeters, Frisch M. J., Fukui K., Guinea F., Hu M., Hämäläinen S. K., Ishigami M., J. Beheshtian, Jia X., K. H. Michel, Khoo K. H., Kong J., Levy N., Lukose B., M. Neek-Amal, Michel K. H., Nakamura J., Naumov I., Neek-Amal M., Pacilé D., Park C.-H., Peng Q., Peng Q., Plimpton S., Sai N., Sevik C., Singh S. K., Teague M., Wang Y., Watanabe K., Zheng F.   +40 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Bulk oxygen in alpha-silicon nitride and its effect on IR absorption [PDF]

, 1995
Results of an IR absorption characterization of alpha silicon nitride specimens prepared in the laboratory by several different procedures are presented. The results suggest the presence of bulk oxygen in the silicon nitride lattice. It is concluded that,
Gopalakrishnan, PS, Lakshminarasimham, PS   +1 more
core  

Suppression of Spectral Diffusion by Anti-Stokes Excitation of Quantum Emitters in Hexagonal Boron Nitride [PDF]

, 2019
Solid-state quantum emitters are garnering a lot of attention due to their role in scalable quantum photonics. A notable majority of these emitters, however, exhibit spectral diffusion due to local, fluctuating electromagnetic fields.
Aharonovich, Igor, Bradac, Carlo, Solntsev, Alexander S., Toth, Milos, Tran, Toan Trong   +4 more
core   +1 more source

Advancing antiferromagnetic nitrides via metal alloy nitridation

Communications Materials
Nitride materials, valued for their structural stability and exceptional physical properties, have garnered significant interest in both fundamental research and technological applications. The fabrication of high-quality nitride thin films is essential for advancing their use in microelectronics and spintronics.
Qianying Wang, Lele Zhang, Ze-Xu He, Qian Li, Haitao Hong, Ting Cui, Dongke Rong, Songhee Choi, Qiao Jin, Chen Ge, Can Wang, Qinghua Zhang, Liang Cheng, Jingbo Qi, Kui-juan Jin, Gang-Qin Liu, Er-Jia Guo   +16 more
openaire   +2 more sources

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

MicroLEDs for optical neuromorphic computing—application potential and present challenges

JPhys Photonics
The slow non-radiative surface recombination velocity of gallium nitride (GaN) in combination with its highly efficient radiative recombination makes this material ideally suited for microLEDs with dimensions as small as 1 µ m and even below, serving as ...
R Kraneis, M Müller, S Higgins-Wood, N Kaelin, H-N Wehmann, N von Malm, C Werner, A Waag   +7 more
doaj   +1 more source