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Improvement in Field-Effect Mobility of Indium Zinc Oxide Transistor by Titanium Metal Reaction Method
- Authors
- Ji, Hyuk; Hwang, Ah Young; Lee, Chang Kyu; Yun, Pil Sang; Bae, Jong Uk; Park, Kwon-Shik; Jeong, Jae Kyeong
- Issue Date
- Mar-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Indium zinc oxide(IZO); metal capping; mobility; oxygen-related defect; thin-film transistors(TFTs)
- Citation
- IEEE TRANSACTIONS ON ELECTRON DEVICES, v.62, no.4, pp.1195 - 1199
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON ELECTRON DEVICES
- Volume
- 62
- Number
- 4
- Start Page
- 1195
- End Page
- 1199
- ISSN
- 0018-9383
- Abstract
- "This paper examined the effects of postdeposition annealing on the electrical properties of titanium-capped (TC) indium-zinc oxide (IZO) films and their IZO thin-film transistors. The TC IZO transistor oxidized at the temperature of 300 degrees C exhibited a high field-effect mobility of 61.0 cm(2)/Vs, low subthreshold gate swing of 110 mV/decade, Vth of -0.4 V, and high I-ON/OFF ratio of 2.3 x 10(8). In addition, the positive gate bias stress-induced stability of the TC IZO transistor was better than that of the control device without metal capping treatment. This was attributed to the scavenging effect of the loosely bonded oxygen species in the IZO semiconductor by titanium thermal oxidation."
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Related Researcher
- Jeong, Jae Kyeong
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)