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

Keywords

  • Capacitance
  • Nanocrystalline
  • RuO
  • SnO
  • Supercapacitor

ASJC Scopus subject areas

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

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