TY - JOUR
T1 - Improvement of electrical performance by neutron irradiation treatment on IGZO thin film transistors
AU - Kwon, Sera
AU - Hong, Jongin
AU - Jun, Byung Hyuk
AU - Chung, Kwun Bum
N1 - Publisher Copyright:
© 2020 by the authors.
PY - 2020/2/1
Y1 - 2020/2/1
N2 - The effects of the neutron irradiation treatment on indium-gallium-zinc oxide (IGZO) are investigated as a function of the neutron irradiation time. With an increase in neutron irradiation time, the oxygen vacancies associated the oxygen deficient states increase, and both shallow and deep band edge states below the conduction band also increase. Moreover, the conduction band offset continuously decreases because of the increase in the oxygen vacancies with increasing the neutron irradiation time. In IGZO TFTs with the neutron irradiation time for 10 s, superior device performance demonstrates such as the lower threshold voltage, higher field effect mobility, smaller sub-threshold gate swing, larger on-off current ratio, and improved bias stability, comparing those of other IGZO TFTs.
AB - The effects of the neutron irradiation treatment on indium-gallium-zinc oxide (IGZO) are investigated as a function of the neutron irradiation time. With an increase in neutron irradiation time, the oxygen vacancies associated the oxygen deficient states increase, and both shallow and deep band edge states below the conduction band also increase. Moreover, the conduction band offset continuously decreases because of the increase in the oxygen vacancies with increasing the neutron irradiation time. In IGZO TFTs with the neutron irradiation time for 10 s, superior device performance demonstrates such as the lower threshold voltage, higher field effect mobility, smaller sub-threshold gate swing, larger on-off current ratio, and improved bias stability, comparing those of other IGZO TFTs.
KW - Electrical performance
KW - Electronic structure
KW - IGZO
KW - Neutron irradiation
KW - Thin-film transistor
UR - http://www.scopus.com/inward/record.url?scp=85080927793&partnerID=8YFLogxK
U2 - 10.3390/coatings10020147
DO - 10.3390/coatings10020147
M3 - Article
AN - SCOPUS:85080927793
SN - 2079-6412
VL - 10
JO - Coatings
JF - Coatings
IS - 2
M1 - 147
ER -