Results 1 to 10 of about 3,867 (222)

Simple method for the growth of 4H silicon carbide on silicon substrate [PDF]

open access: yesAIP Advances, 2016
In this study we report thermal evaporation technique as a simple method for the growth of 4H silicon carbide on p-type silicon substrate. A mixture of Si and C60 powder of high purity (99.99%) was evaporated from molybdenum boat.
M. Asghar   +6 more
doaj   +4 more sources

Spin-acoustic control of silicon vacancies in 4H silicon carbide [PDF]

open access: yesNature Electronics, 2023
AbstractBulk acoustic resonators can be fabricated on the same substrate as other components and can operate at various frequencies with high quality factors. Mechanical dynamic metrology of these devices is challenging as the surface information available through laser Doppler vibrometry lacks information about the acoustic energy stored in the bulk ...
Jonathan R. Dietz   +4 more
core   +10 more sources

Polarization and spatial mode dependent four-wave mixing in a 4H-silicon carbide microring resonator [PDF]

open access: yesAPL Photonics, 2021
We report four-wave mixing with different polarization and spatial modes in a single 4H-silicon carbide photonic device. Our device shows great potential to perform high-dimensional multiplexing for optical communication and high-dimensional entanglement
Xiaodong Shi   +8 more
doaj   +2 more sources

4H silicon carbide bulk acoustic wave gyroscope with ultra-high Q-factor for on-chip inertial navigation [PDF]

open access: yesCommunications Engineering
Inertial navigation on a chip has long been constrained by the noise and stability issues of micromechanical Coriolis gyroscopes, as silicon, the dominant material for microelectromechanical system devices, has reached the physical limits of its material
Zhenming Liu   +4 more
doaj   +2 more sources

Numerical Simulation and Experimental Study on Picosecond Laser Polishing of 4H-SiC Wafer [PDF]

open access: yesMicromachines
4H-SiC wafers usually require polishing treatment after slicing to improve the surface quality. However, traditional polishing processes have problems such as low removal efficiency and easy surface damage, which affect the reliability of electronic ...
Yixiong Yan   +5 more
doaj   +2 more sources

Mechanism of Tailoring Laser-Induced Periodic Surface Structures on 4H-SiC Crystal Using Ultrashort-Pulse Laser [PDF]

open access: yesNanomaterials
In this study, we examine the characteristics of laser-induced periodic surface structures (LIPSSs) fabricated on N-doped 4H-SiC (N-SiC) and high-purity 4H-SiC (HP-SiC) crystals using femtosecond–picosecond lasers. The effects of various laser parameters
Erxi Wang   +9 more
doaj   +2 more sources

Recognition of dislocation structure of silicon carbide epitaxial layers by а neural network [PDF]

open access: yesКомпьютерная оптика, 2020
Technological features of the growth of single crystal silicon carbide inevitably create condi-tions for the formation of crystal structure defects in them.
A.V. Bragin   +3 more
doaj   +1 more source

On the Suitability of 3C-Silicon Carbide as an Alternative to 4H-Silicon Carbide for Power Diodes [PDF]

open access: yesIEEE Transactions on Industry Applications, 2019
Major recent developments in growth expertise related to the cubic polytype of Silicon Carbide, the 3C-SiC, coupled with its remarkable physical properties and the low fabrication cost, suggest that within the next years, 3C-SiC devices can become a commercial reality.
Anastasios E. Arvanitopoulos   +6 more
openaire   +4 more sources

Angle-Resolved Intensity of Polarized Micro-Raman Spectroscopy for 4H-SiC

open access: yesCrystals, 2021
Raman spectroscopy is an indispensable method for the nondestructive testing of semiconductor materials and their microstructures. This paper presents a study on the angle-resolved intensity of polarized micro-Raman spectroscopy for a 4H silicon carbide (
Ying Chang   +8 more
doaj   +1 more source

The Role of Aluminium in the Synthesis of Mesoporous 4H Silicon Carbide [PDF]

open access: yesMaterials Science Forum, 2015
Aluminium is found to play a key role in the process of forming a mechanically stable and highly porous and granular structure of 4H silicon carbide. The material is prepared by a high temperature reaction of the elemental constituents. The reactions are carried out under different background atmospheres, including nitrogen. Ternary carbides containing
Hvam, Jeanette   +4 more
openaire   +4 more sources

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