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Color Thin-Film Transistors Employing Periodic Nanohole Structures
- Color Thin-Film Transistors Employing Periodic Nanohole Structures
- Heo, Su Jin; Kim, Seunguk; Pyo, Goeun; Yang, Jae Hoon; Shin, Jeong Hee; Kwon, Hyuk-Jun; Kang, Hongki; Lee, Gae Hwang; Jang, Jae Eun
- DGIST Authors
- Kwon, Hyuk-Jun; Kang, Hongki; Jang, Jae Eun
- Issue Date
- ACS Applied Electronic Materials, 2(8), 2489-2497
- Article Type
- Author Keywords
- thin-film transistor (TFT); periodic nanohole array; color transmission; plasmon; amorphous In-Ga-Zn-O (a-IGZO)
- EXTRAORDINARY OPTICAL-TRANSMISSION; SURFACE; TRANSPARENT; ALUMINUM; RESONANCE; FILTER; FABRICATION; ARRAYS
- A thin-film transistor (TFT) with a color filter function achieved by designing periodic nanohole arrays in the metal electrodes was studied. Since this metal electrode is not opaque but transparent to a specific color of light, the TFT structure has unique optical characteristics that can be used in broader applications. An aluminum metal electrode with nanohole arrays permitted specific color transmission by the surface plasmon phenomenon, depending on the spacing between holes, from blue to red. Although the gate electrode of the TFT had a nanohole structure, its electrical characteristics and the electrical field distribution in the gate oxide were almost similar to that of a common metal electrode structure. The TFTs with the nanohole arrays showed similar electrical performances to general TFTs without the nanohole structure. The values of 0.7 V/decade subthreshold swing and >107 ION/IOFF ratio were measured. The TFTs with the nanohole arrays on the metal layer were transparent in a specific color range and still kept its original electrical functionality. Therefore, the color TFT structure can be a good solution for various applications such as a solution for the low aperture issue in organic light-emitting diode (OLED) displays or low reliability in a flexible transparent display while offering a simpler fabrication process. Copyright © 2020 American Chemical Society.
- American Chemical Society
- Related Researcher
Jang, Jae Eun
Advanced Electronic Devices Research Group(AEDRG) - Jang Lab.
Nanoelectroinc device; 생체 신호 센싱 시스템 및 생체 모방 디바이스; 나노 통신 디바이스
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- Department of Information and Communication EngineeringAdvanced Electronic Devices Research Group(AEDRG) - Kwon Lab.1. Journal Articles
Department of Information and Communication EngineeringAdvanced Electronic Devices Research Group(AEDRG) - Kang Lab.1. Journal Articles
Department of Information and Communication EngineeringAdvanced Electronic Devices Research Group(AEDRG) - Jang Lab.1. Journal Articles
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