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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 8, Iss. 1 — Jan. 1, 2012
  • pp: 35–40

Effect of Self-Assembled Monolayer (SAM) on the Oxide Semiconductor Thin Film Transistor

Seung-Hwan Cho, Yong-Uk Lee, Jeong-Soo Lee, Kang-Moon Jo, Bo Sung Kim, Hyang-Shik Kong, Jang-Yeon Kwon, and Min-Koo Han

Journal of Display Technology, Vol. 8, Issue 1, pp. 35-40 (2012)


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Abstract

In this paper, we proposed the self-assembled monolayer (SAM) as a protection layer against plasma and chemically induced damages to the back interface of an oxide semiconductor during the deposition of the passivation layer. When a thin-film transistor (TFT) is passivated with plasma-enhanced chemical-vapor deposition (PECVD) SiO<sub>x</sub> and solution-based materials, the back interface of the oxide semiconductor could be exposed to plasma and chemically induced damages, respectively. We employed SAMs on the back surface of the oxide semiconductor prior to the passivation process to suppress such damage. The hydrophobic Cl-SAM (3-chloropropyltriethoxysilane) suppressed the degradation in mobility and subthreshold slope (SS) due to ion bombardment during plasma treatment. The hydrophobic CH<sub>3</sub>-SAM (octyltriethoxysilane) successfully blocked chemically induced damage due to solution-based passivation.

© 2011 IEEE

Citation
Seung-Hwan Cho, Yong-Uk Lee, Jeong-Soo Lee, Kang-Moon Jo, Bo Sung Kim, Hyang-Shik Kong, Jang-Yeon Kwon, and Min-Koo Han, "Effect of Self-Assembled Monolayer (SAM) on the Oxide Semiconductor Thin Film Transistor," J. Display Technol. 8, 35-40 (2012)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-8-1-35

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