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Title: Characterizing p-channel thin film transistors using ZnO/hydrated polyvinyl alcohol as the conducting channel

Abstract

We report the characteristics of p-channel thin film transistors (p-TFTs) with ZnO/hydrated polyvinyl alcohol (PVA) (ZnO/PVA) conducting channels. The metal-oxide-semiconductor structure of the p-TFTs was composed of indium tin oxide (ITO)/SiO{sub 2}/ZnO/PVA layers. The TFT was assembled using PVA gel, which was glued to ITO substrates patterned to form source and drain electrodes. The ZnO/PVA composite film acted as an effective conducting film because of the chemisorption reaction at the film interface where free electrons can be generated. The formation of the conducting channel was also affected by V{sub G} applied to the TFT. The ZnO/PVA-based TFTs demonstrated p-channel transistor performance, shown by current-voltage (I-V) data analysis. The electrical parameters of the device were evaluated, including the on/off ratio (∼10{sup 3}), threshold voltage (V{sub th}, −1 V), and subthreshold swing (−2.2 V/dec). The PVA/ZnO-based p-TFTs were fabricated using simple and cost-effective approaches instead of doping methods.

Authors:
;  [1]
  1. Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan (China)
Publication Date:
OSTI Identifier:
22318028
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHEMISORPTION; ELECTRICAL PROPERTIES; INDIUM COMPOUNDS; PVA; SEMICONDUCTOR MATERIALS; SILICON OXIDES; THIN FILMS; TIN OXIDES; TRANSISTORS; ZINC OXIDES

Citation Formats

Liau, Leo Chau-Kuang, E-mail: lckliau@saturn.yzu.edu.tw, Hsu, Tzu-Hsien, and Lo, Pei-Hsuan. Characterizing p-channel thin film transistors using ZnO/hydrated polyvinyl alcohol as the conducting channel. United States: N. p., 2014. Web. doi:10.1063/1.4893450.
Liau, Leo Chau-Kuang, E-mail: lckliau@saturn.yzu.edu.tw, Hsu, Tzu-Hsien, & Lo, Pei-Hsuan. Characterizing p-channel thin film transistors using ZnO/hydrated polyvinyl alcohol as the conducting channel. United States. https://doi.org/10.1063/1.4893450
Liau, Leo Chau-Kuang, E-mail: lckliau@saturn.yzu.edu.tw, Hsu, Tzu-Hsien, and Lo, Pei-Hsuan. Mon . "Characterizing p-channel thin film transistors using ZnO/hydrated polyvinyl alcohol as the conducting channel". United States. https://doi.org/10.1063/1.4893450.
@article{osti_22318028,
title = {Characterizing p-channel thin film transistors using ZnO/hydrated polyvinyl alcohol as the conducting channel},
author = {Liau, Leo Chau-Kuang, E-mail: lckliau@saturn.yzu.edu.tw and Hsu, Tzu-Hsien and Lo, Pei-Hsuan},
abstractNote = {We report the characteristics of p-channel thin film transistors (p-TFTs) with ZnO/hydrated polyvinyl alcohol (PVA) (ZnO/PVA) conducting channels. The metal-oxide-semiconductor structure of the p-TFTs was composed of indium tin oxide (ITO)/SiO{sub 2}/ZnO/PVA layers. The TFT was assembled using PVA gel, which was glued to ITO substrates patterned to form source and drain electrodes. The ZnO/PVA composite film acted as an effective conducting film because of the chemisorption reaction at the film interface where free electrons can be generated. The formation of the conducting channel was also affected by V{sub G} applied to the TFT. The ZnO/PVA-based TFTs demonstrated p-channel transistor performance, shown by current-voltage (I-V) data analysis. The electrical parameters of the device were evaluated, including the on/off ratio (∼10{sup 3}), threshold voltage (V{sub th}, −1 V), and subthreshold swing (−2.2 V/dec). The PVA/ZnO-based p-TFTs were fabricated using simple and cost-effective approaches instead of doping methods.},
doi = {10.1063/1.4893450},
url = {https://www.osti.gov/biblio/22318028}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 6,
volume = 105,
place = {United States},
year = {2014},
month = {8}
}