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Title: Ionization-induced annealing of pre-existing defects in silicon carbide

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms9049· OSTI ID:1210134
 [1]; ORCiD logo [2];  [3];  [2];  [4];  [5]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Helsinki (Finland). Dept. of Physics
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Shandong Univ., Jinan (China). Key Lab. of Particle Physics and Particle Irradiation (MOE), School of Physics
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering

A long-standing objective in materials research is to find innovative ways to remove preexisting damage and heal fabrication defects or environmentally induced defects in materials. Silicon carbide (SiC) is a fascinating wide-band gap semiconductor for high-temperature, high-power, high-frequency applications. Its high corrosion and radiation resistance makes it a key refractory/structural material with great potential for extremely harsh radiation environments. Here we show that the energy transferred to the electron system of SiC by energetic ions via inelastic ionization processes results in a highly localized thermal spike that can effectively heal preexisting defects and restore the structural order. This work reveals an innovative self-healing process using highly ionizing ions, and it describes a critical aspect to be considered in modeling SiC performance as either a functional or a structural material for device applications or high-radiation environments.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1210134
Journal Information:
Nature Communications, Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 109 works
Citation information provided by
Web of Science

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Cited By (21)

In situ TEM observation of alpha-particle induced annealing of radiation damage in Durango apatite journal October 2017
Ion beam modification of two-dimensional materials: Characterization, properties, and applications journal March 2017
Irradiation-induced β to α SiC transformation at low temperature journal April 2017
Refractive index engineering through swift heavy ion irradiation of LiNbO3 crystal towards improved light guidance journal September 2017
Strain engineering 4H-SiC with ion beams journal June 2019
Two-stage synergy of electronic energy loss with defects in LiTaO 3 under ion irradiation journal March 2018
Ionization-induced thermally activated defect-annealing process in SiC journal June 2019
Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys journal October 2015
Self-healing capacity of nuclear glass observed by NMR spectroscopy journal May 2016
Interpreting nanovoids in atom probe tomography data for accurate local compositional measurements journal February 2020
A Novel Dual-Step Nucleation Pathway in Crystalline Solids under Neutron Irradiation journal January 2018
Defects induced by solid state reactions at the tungsten-silicon carbide interface journal April 2018
On Lattice Distortion in High Entropy Alloys journal July 2018
Non-monotonic temperature dependence of radiation defect dynamics in silicon carbide journal August 2016
Energetic Ion Irradiation-Induced Disordered Nanochannels for Fast Ion Conduction journal October 2018
Microstructure investigation of damage recovery in SiC by swift heavy ion irradiation journal May 2019
Ionization-induced annealing in silicon upon dual-beam irradiation journal February 2020
Atomic Configuration of Point Defect Clusters in Ion-Irradiated Silicon Carbide journal November 2017
Local structure and defects in ion irradiated KTaO 3 journal March 2018
Radiation tolerance, charge trapping, and defect dynamics studies of ALD-grown Al/HfO2/Si nMOSCAPs journal January 2020
Effect of proton irradiation on anatase TiO2 nanotube anodes for lithium-ion batteries journal July 2019

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