Results 61 to 70 of about 637,262 (217)

Characterization of diverse gate oxides on 4H-SiC 3D trench-MOS structures

open access: yes, 2022
S.691-694This study focuses on the characterization of silicon dioxide (SiO2) layers, either thermally grown or deposited on trenched 100 mm 4H-silicon carbide (SiC) wafers.
Grieb, M.   +4 more
core   +1 more source

Porous single crystalline 4H silicon carbide rugate mirrors

open access: yesAPL Materials, 2017
Porous 4H silicon carbide optical rugate mirrors have been fabricated with a combination of metal assisted photochemical etching and photoelectrochemical etching.
Markus Leitgeb   +3 more
doaj   +1 more source

3C-SiC-induced peak emission intensity in photoluminescence spectrum of SiC/SiO2 core–shell nanowires using first-principles calculations

open access: yesAIP Advances, 2021
In light of the recent publication of a report on the preparation of crystalline silicon carbide nanowires (NWs) covered with silicon oxide (SiC/SiO2) core–shell nanowires at low temperature, this study uses first-principles calculations based on the ...
Song-Ming Hsu   +4 more
doaj   +1 more source

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

open access: yesAdvanced Science, Volume 13, Issue 55, 5 October 2026.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu   +5 more
wiley   +1 more source

Prominent luminescence of silicon-vacancy defects created in bulk silicon carbide p–n junction diodes

open access: yesScientific Reports, 2021
We investigate fluorescent defect centers in 4H silicon carbide p–n junction diodes fabricated via aluminum-ion implantation into an n-type bulk substrate without the use of an epitaxial growth process.
Fumiya Nagasawa   +5 more
doaj   +1 more source

Accessing Polyphenols Effect on Bond Strength and Dentin Enzymatic Degradation

open access: yesClinical and Experimental Dental Research, Volume 12, Issue 5, October 2026.
ABSTRACT Introduction Polyphenols have been investigated in dental materials and restorative techniques due to their interactions with metal cations, antioxidant activity, and collagen crosslinking ability, which make them a promise for reinforcing the dental substrate and improving material adhesion.
Ana Catarina Rios Castro Alves   +7 more
wiley   +1 more source

Octave-spanning microcomb generation in 4H-silicon-carbide-on-insulator photonics platform

open access: yes, 2021
Silicon carbide has recently emerged as a promising photonics material due to its unique properties, including possessing strong second- and third-order nonlinear coefficients and hosting various color centers that can be utilized for a wealth of quantum
Lutong Cai (14364174)   +3 more
core   +1 more source

The Fabrication and Characterization of Ni/4H-SiC Schottky Diode Radiation Detectors with a Sensitive Area of up to 4 cm2

open access: yesSensors, 2017
Silicon carbide (SiC) detectors of an Ni/4H-SiC Schottky diode structure and with sensitive areas of 1–4 cm2 were fabricated using high-quality lightly doped epitaxial 4H-SiC material, and were tested in the detection of alpha particles and pulsed X-rays/
Lin-Yue Liu   +10 more
doaj   +1 more source

Exploring the Landscape of MgO Polymorphs: Stability and the Electronic Band Gap of Promising Candidates

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 14, 23 September 2026.
In this study, we have investigated possible predicted polymorphs of magnesium oxide (MgO) with respect to their thermodynamic and kinetic stability, as well as their electronic properties, focusing on the possibility of tuning the band gap of the material.
D. Zagorac   +4 more
wiley   +1 more source

Enhancing Blood Circulation With Epsilon‐Near‐Zero (ENZ) Materials via the Far‐Infrared Window of Human Skin

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
Epsilon‐near‐zero (ENZ) silicon carbide enables a selective far‐infrared emitter spectrally aligned with the human skin window around 10 µm for wavelength‐matched thermal therapy. In 25 within‐subject trials (50 hands) monitored by laser speckle contrast imaging, SiC increases blood perfusion by 30.2% versus a broadband graphite emitter while ...
Wen‐Teng Yao   +3 more
wiley   +1 more source

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