Characteristics of RuO2-SnO2 nanocrystalline-embedded amorphous electrode for thin film microsupercapacitors

Han Ki Kim, Sun Hee Choi, Young Soo Yoon, Sung Yong Chang, Young Woo Ok, Tae Yeon Seong

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The characteristics of RuO2-SnO2 nanocrystalline- embedded amorphous electrode, grown by DC reactive sputtering, was investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM), and transmission electron diffraction (TED) examination results showed that Sn and Ru metal cosputtered electrode in O2/Ar ambient have RuO 2-SnO2 nanocrystallines in an amorphous oxide matrix. It is shown that the cyclic voltammorgram (CV) result of the RuO 2-SnO2 nanocrystalline-embedded amorphous film in 0.5 M H2SO4 liquid electrolyte is similar to a bulk-type supercapacitor behavior with a specific capacitance of 62.2 mF/cm2 μm. This suggests that the RuO2-SnO2 nanocrystalline-embedded amorphous film can be employed in hybrid all-solid state energy storage devises as an electrode of supercapacitor.

Original languageEnglish
Pages (from-to)54-57
Number of pages4
JournalThin Solid Films
Volume475
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Mar 22
Externally publishedYes

Fingerprint

electrochemical capacitors
Amorphous films
Thin films
Electrodes
electrodes
thin films
Reactive sputtering
energy storage
Electron diffraction
Energy storage
Oxides
Electrolytes
Capacitance
electron diffraction
examination
sputtering
capacitance
Metals
direct current
electrolytes

Keywords

  • Capacitance
  • Nanocrystalline
  • RuO
  • SnO
  • Supercapacitor

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Characteristics of RuO2-SnO2 nanocrystalline-embedded amorphous electrode for thin film microsupercapacitors. / Kim, Han Ki; Choi, Sun Hee; Yoon, Young Soo; Chang, Sung Yong; Ok, Young Woo; Seong, Tae Yeon.

In: Thin Solid Films, Vol. 475, No. 1-2 SPEC. ISS., 22.03.2005, p. 54-57.

Research output: Contribution to journalArticle

Kim, Han Ki ; Choi, Sun Hee ; Yoon, Young Soo ; Chang, Sung Yong ; Ok, Young Woo ; Seong, Tae Yeon. / Characteristics of RuO2-SnO2 nanocrystalline-embedded amorphous electrode for thin film microsupercapacitors. In: Thin Solid Films. 2005 ; Vol. 475, No. 1-2 SPEC. ISS. pp. 54-57.
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AU - Ok, Young Woo

AU - Seong, Tae Yeon

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AB - The characteristics of RuO2-SnO2 nanocrystalline- embedded amorphous electrode, grown by DC reactive sputtering, was investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM), and transmission electron diffraction (TED) examination results showed that Sn and Ru metal cosputtered electrode in O2/Ar ambient have RuO 2-SnO2 nanocrystallines in an amorphous oxide matrix. It is shown that the cyclic voltammorgram (CV) result of the RuO 2-SnO2 nanocrystalline-embedded amorphous film in 0.5 M H2SO4 liquid electrolyte is similar to a bulk-type supercapacitor behavior with a specific capacitance of 62.2 mF/cm2 μm. This suggests that the RuO2-SnO2 nanocrystalline-embedded amorphous film can be employed in hybrid all-solid state energy storage devises as an electrode of supercapacitor.

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