Electronic Defects in Amorphous Oxide Semiconductors: A Review

被引:242
作者
Ide, Keisuke [1 ]
Nomura, Kenji [1 ,3 ]
Hosono, Hideo [1 ,2 ]
Kamiya, Toshio [1 ,2 ]
机构
[1] Tokyo Inst Technol, Lab Mat & Struct, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
[2] Tokyo Inst Technol, Mat Res Ctr Element Strategy, Midori Ku, 4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
[3] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA
来源
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2019年 / 216卷 / 05期
基金
日本学术振兴会;
关键词
amorphous oxide semiconductors; defects; excess oxygen; hydrogen; instability; oxygen vacancy; thin-film transistors; weakly bonded oxygen; GA-ZN-O; THIN-FILM-TRANSISTOR; OPTICAL-PROPERTIES; TRANSPARENT; HYDROGEN; DEVICE; DIFFUSION; TRANSPORT; OXYGEN; INDIUM;
D O I
10.1002/pssa.201800372
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Amorphous oxide semiconductors (AOSs) have been commercialized since 2012 as thin-film transistor (TFT) backplanes in flat-panel displays. This review first provides a brief history and current status of AOS technology, and then introduces electronic defects in AOSs reported to date that are critically important for understanding and controlling the instability of TFTs that is the most serious issue in the development of the AOS technology. In particular, it is important to know that many AOS defects are related to oxygen and hydrogen impurities, though oxygen is the major constituent of AOS and hydrogen is not intentionally incorporated. Instability issues and their underlying mechanisms are also discussed in relation to these defects.
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页数:28
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