Journal
APPLIED PHYSICS EXPRESS
Volume 7, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.7.031401
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Funding
- International collaborative RD program [N0000678]
- Fundamental R&D Program for Technology of World Premier Materials [10037859]
- Ministry of Trade, Industry and Energy (MOTIE, Korea)
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During the sputtering process, the bombardment effect of negative oxygen ions (NO Is) on the thin-film properties of amorphous indium gallium zinc oxide (a-IGZO) was investigated. The energies of NOls determined by in situ ion energy analyses are in good agreement with the values obtained using the Meyer equation. Furthermore, we find that the energies of NOls are sufficiently high to affect the lattice distortion and/or displacement in a-IGZO films. The overall analysis revealed that the bombardment of NOls has a considerable effect on a-IGZO film properties. Our work demonstrates that the bombardment of NOls is a crucial issue for achieving high-quality a-IGZO films. (C) 2014 The Japan Society of Applied Physics
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