Material science and device physics in SiC technology for high-voltage power devices

T Kimoto - Japanese Journal of Applied Physics, 2015 - iopscience.iop.org
Power semiconductor devices are key components in power conversion systems. Silicon
carbide (SiC) has received increasing attention as a wide-bandgap semiconductor suitable …

Silicon carbide diodes for neutron detection

J Coutinho, VJB Torres, I Capan, T Brodar… - Nuclear Instruments and …, 2021 - Elsevier
In the last two decades we have assisted to a rush towards finding a 3 He-replacing
technology capable of detecting neutrons emitted from fissile isotopes. The demand stems …

[HTML][HTML] Charge state control of the silicon vacancy and divacancy in silicon carbide

NT Son, IG Ivanov - Journal of Applied Physics, 2021 - pubs.aip.org
Color centers in silicon carbide (SiC), such as the negative silicon vacancy (V Si−) and
neutral divacancy (V Si VC 0), have recently been shown to be promising quantum bits …

Influence of neutron radiation on majority and minority carrier traps in n-type 4H-SiC

I Capan, T Brodar, Y Yamazaki, Y Oki… - Nuclear Instruments and …, 2020 - Elsevier
We report on influence of neutron radiation on majority and minority carrier traps in n-type 4
H-SiC. Together with the increase of the well-known carbon vacancy (VC) majority carrier …

Theory of the thermal stability of silicon vacancies and interstitials in 4H–SiC

J Coutinho - Crystals, 2021 - mdpi.com
This paper presents a theoretical study of the electronic and dynamic properties of silicon
vacancies and self-interstitials in 4H–SiC using hybrid density functional methods. Several …

Enhancement of radiation detection performance with reduction of EH6/7 deep levels in n-type 4H–SiC through thermal oxidation

OF Karadavut, SK Chaudhuri, JW Kleppinger… - Applied Physics …, 2022 - pubs.aip.org
We report the effect of EH 6/7 electron trap centers alone on the performance of high-
resolution radiation detectors fabricated on n-type 4H–SiC epitaxial layers. A Schottky …

Negative- carbon vacancy in 4-SiC: Assessment of charge correction schemes and identification of the negative carbon vacancy at the quasicubic site

XT Trinh, K Szász, T Hornos, K Kawahara, J Suda… - Physical Review B, 2013 - APS
The carbon vacancy (VC) has been suggested by different studies to be involved in the Z 1/Z
2 defect-a carrier lifetime killer in SiC. However, the correlation between the Z 1/Z 2 deep …

Quantitative comparison between Z1∕ 2 center and carbon vacancy in 4H-SiC

K Kawahara, X Thang Trinh, N Tien Son… - Journal of Applied …, 2014 - pubs.aip.org
In this study, to reveal the origin of the Z 1∕ 2 center, a lifetime killer in n-type 4H-SiC, the
concentrations of the Z 1∕ 2 center and point defects are compared in the same samples …

Theory of the carbon vacancy in -SiC: Crystal field and pseudo-Jahn-Teller effects

J Coutinho, VJB Torres, K Demmouche, S Öberg - Physical Review B, 2017 - APS
The carbon vacancy in 4 H-SiC is a powerful minority carrier recombination center in as-
grown material and a major cause of degradation of SiC-based devices. Despite the …

Patterned tungsten disulfide/graphene heterostructures for efficient multifunctional optoelectronic devices

A Rossi, D Spirito, F Bianco, S Forti, F Fabbri, H Büch… - Nanoscale, 2018 - pubs.rsc.org
One of the major issues in graphene-based optoelectronics is to scale-up high-performing
devices. In this work, we report an original approach for the fabrication of efficient …