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Sol-Gel Cupric Oxide Thin Film Transistors: Alkali Metal Doping for Low Temperature Flexible Devices
  • Baek, Seokhyeon ;
  • Na, Jeongyeon ;
  • Kim, Wonsik ;
  • Hwang, Chuljin ;
  • Park, Sungjun
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Publication Year
2023-01-01
Journal
IFETC 2023 - 5th IEEE International Flexible Electronics Technology Conference, Proceedings
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
IFETC 2023 - 5th IEEE International Flexible Electronics Technology Conference, Proceedings
Keyword
alkali metalcopper oxidedopingp-Type oxidesolution processthin film transistors
Mesh Keyword
Alkali metal dopingC. thin film transistor (TFT)CuO thin filmsFlexible deviceLows-temperaturesP type conductivityP-type oxidesSol'gelSolution processSolution-processed
All Science Classification Codes (ASJC)
Electrical and Electronic EngineeringElectronic, Optical and Magnetic MaterialsInstrumentation
Abstract
Solution-processed copper oxide (CuxO) semiconductors have gained significant interest in recent years due to their p-Type conductivity, transparency, nontoxicity, and low cost. However, the development of CuxO thin film transistors (TFTs) has been limited by their low field-effect mobility and poor reproducibility. In this study, we present a simple solution doping process for producing high-performance sol-gel-based CuO TFTs under ambient conditions. By doping the precursor solution with an alkali metal, we achieved a more than 10-fold increase in device mobility compared to pristine CuO transistors annealed at the same temperature. These results suggest the possibility of implementing solution processed p-Type oxide transistors at lower temperatures, thereby enabling CuO TFTs to be realized on flexible plastic substrates.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36967
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85174413323&origin=inward
DOI
https://doi.org/10.1109/ifetc57334.2023.10254855
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=10254736
Type
Conference
Funding
ACKNOWLEDGMENT This work was supported by the Korea Electric Power Corporation (Grant No. R21XO01-20). This work was also supported by the Technology Innovation Program (or Industrial Strategic Technology Development Program-Alchemist Project) (1415180859, Chiral perovskite LED smart contact lens based hyper vision metaverse) funded by the Ministry of Trade, Industry & Energy(MOTIE, Korea) and Korea Evaluation Institute of Industrial Technology(KEIT, Korea).
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Park, Sungjun 박성준
Department of Electrical and Computer Engineering
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