期刊
APPLIED PHYSICS LETTERS
卷 94, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3098406
关键词
carbon nanotubes; deep levels; gallium compounds; indium compounds; nanotube devices; photodetectors; semiconductor materials; semiconductor nanotubes; thin film transistors; zinc compounds
资金
- Korea Science and Engineering Foundation (KOSEF)
- Korea government (MOST) [R0A-2007-000-10044-0]
- National Research Foundation of Korea [R0A-2007-000-10044-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We studied the optical and electrical properties of solution-based indium gallium zinc oxide single-walled carbon nanotubes blend thin film transistors (SB-IGZO/SWNTs blend TFTs). When the SB-IGZO/SWNTs blend TFTs were illuminated at a wavelength of 660 nm, the off-state drain current slightly increased, while below 550 nm, it increased significantly. The SB-IGZO/SWNTs blend TFTs were incredibly sensitive, with deep-level defects at approximately 2.25 eV, near the midgap. We also presented the photosensitivity (signal-to-noise ratio) of these TFTs. Our results demonstrate that the SB-IGZO/SWNTs blend could be a good candidate for an ultraviolet photodetector.
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