Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 469, Issue -, Pages 49-51Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2020.02.010
Keywords
MXenes; Ti2C; Ion beam sputtering; Ion irradiation
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Funding
- Grant Agency of the Czech Republic [18-21677S]
- National Science Foundation (NSF) [DMR-0959470, DMR-1626065]
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Thin titanium carbide films were prepared by ion beam sputtering of titanium and graphite targets followed by thermal annealing at 600 degrees C in vacuum and irradiation by Ar+ ions up to a fluence of 10(15) ions/cm(2). The stoichiometry of the films was analyzed by RBS and NRA methods, it was found to be Ti2.2C. The crystalline structure of the films was analyzed by STEM and EELS microscopic methods: before irradiation it was mostly amorphous with crystalline parts and visible network of micro-voids, crystallization and formation of laminar structure was observed after irradiation. The irradiated part showed corrugated surface morphology and a dense network of nano-openings. The thickness of the films increased from ca 67 nm to ca 83 nm. Obviously, the effect of the ion irradiation promoted the recrystallization and self-organization of the structure, resulting in the nanolaminar phase of Ti2C.
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