• Title/Summary/Keyword: $V_{1.85}W_{0.15}O_5$ thin film

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Electrical Properties of $V_{1.85}W_{0.15}O_5$ Thin Films with Thickness (두께에 따른 $V_{1.85}W_{0.15}O_5$ 박막의 전기적 특성)

  • Lee, Seung-Hwan;Lee, Sung-Gap;Bae, Seon-Gi;Lee, Young-Hie
    • Proceedings of the KIEE Conference
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    • 2008.10a
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    • pp.121-122
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    • 2008
  • The films of the vanadium tungsten oxide, $V_{1.85}W_{0.15}O_5$, were grown on Pt/Ti/$SiO_2$/Si substrate by RF sputtering method. It was found that film crystallinity, dielectric properties, and TCR properties were strongly dependent upon the thin film thickness. As increasing of $V_{1.85}W_{0.15}O_5$ thickness, the grain size, morphology, and crystallinity increased. The dielectric constants of $V_{1.85}W_{0.15}O_5$ thin films deposited at 150nm were 71.11, with a dielectric loss of 0.015, respectively. Also, The $V_{1.85}W_{0.15}O_5$ thin films showed good TCR values of -3.45%/K.

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Structural and Electrical Properties of $V_{1.85}W_{0.15}O_5$ Thin Films for the Uncooled Infrared Detector (비냉각 적외선 검출기용 $V_{1.85}W_{0.15}O_5$ 박막의 구조적, 전기적 특성)

  • Nam, Sung-Pill;Ryu, Ki-Won;Lee, Sung-Gap;Bea, Seon-Gi;Lee, Young-Hie
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.11a
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    • pp.237-238
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    • 2008
  • The films of Vanadium tungsten oxide, $V_{1.85}W_{0.15}O_5$, were grown on Pt/Ti/$SiO_2$/Si substrate by RF sputtering method. The $V_{1.85}W_{0.15}O_5$ thin films deposited on Pt/Ti/$SiO_2$/Si substrates by RF sputtering method exhibited fairly good TCR and dielectric properties. It was found that film crystallinity, dielectric properties, and TCR properties were strongly dependent upon the annealing temperature. The dielectric constants of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $300^{\circ}C$ were 55, with a dielectric loss of 1.435, respectively. Also, the TCR values of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $300^{\circ}C$ were about -3.6%/K.

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Electrical properties of $V_{2-x}W_xO_5$ thin film doped Tungsten contents (텅스텐을 첨가한 $V_{2-x}W_xO_5$ 박막의 전기적 특성)

  • Nam, Sung-Pill;Noh, Hyun-Ji;Lee, Sung-Gap;Bea, Seon-Gi;Lee, Young-Hie
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1322_1323
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    • 2009
  • The $V_{1.85}W_{0.15}O_5$ thin films deposited on Pt/Ti/$SiO_2$/Si substrates by RF sputtering method exhibited fairly good TCR and dielectric properties. It was found that film crystallinity, dielectric properties, and TCR properties were strongly dependent upon the annealing temperature. The dielectric constants of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $400^{\circ}C$ were 38.11, with a dielectric loss of 1%, respectively. Also, the TCR values of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $400^{\circ}C$ were about -3.45%/K.

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Electrical and Structural Properties of $V_{2-n}W_nO_5$ Thin Films as a function of Tungsten Contents (텅스텐 첨가에 따른 $V_{2-n}W_nO_5$ 박막의 구조적, 전기적 특성)

  • Nam, Sung-Pill;Lee, Sung-Gap;Lee, Seon-Gi;Lee, Young-Hie
    • Proceedings of the KIEE Conference
    • /
    • 2008.10a
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    • pp.117-118
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    • 2008
  • The $V_{1.85}W_{0.15}O_5$ thin films deposited on Pt/Ti/$SiO_2$/Si substrates by RF sputtering method exhibited fairly good TCR and dielectric properties. It was found that film crystallinity, dielectric properties, and TCR properties were strongly dependent upon the annealing temperature. The dielectric constants of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $400^{\circ}C$ were 38.11, with a dielectric loss of 1%, respectively. Also, the TCR values of the $V_{1.85}W_{0.15}O_5$ thin films annealed at $400^{\circ}C$ were about -3.45%/K.

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