ENHANCEMENT OF ELECTROCHROMIC DURABILITY OF A FILM MADE OF SILICA-POLYANILINE CORE-SHELL NANOPARTICLES

Taejin Hwang (), Heungyeol Lee, Hohyeong Kim, Gyuntak Kim and Gyeongjin Mun
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Taejin Hwang: Surface Technology and Heat Treatment R&D Division, Korea Institute of Industrial Technology (KITECH), 7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea
Heungyeol Lee: Surface Technology and Heat Treatment R&D Division, Korea Institute of Industrial Technology (KITECH), 7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea
Hohyeong Kim: Surface Technology and Heat Treatment R&D Division, Korea Institute of Industrial Technology (KITECH), 7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea
Gyuntak Kim: Surface Technology and Heat Treatment R&D Division, Korea Institute of Industrial Technology (KITECH), 7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea
Gyeongjin Mun: Surface Technology and Heat Treatment R&D Division, Korea Institute of Industrial Technology (KITECH), 7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea

Surface Review and Letters (SRL), 2010, vol. 17, issue 01, 39-44

Abstract: Enhancing the operation life time or the electrochemical durability is one of the key issues in electrochromic material studies. It is generally accepted that the inorganic–organic hybrid structure is one of the effective ways to enhance the chemical stability of the material. In this study, an electrochromic film made of silica-polyaniline core-shell composite nanoparticles was tested. The composite particles were prepared through a chemical dispersion polymerization of aniline in an aqueous colloidal solution of silica. The synthesized particles were then dispersed into ethanol and the solution was deposited onto an Indium Tin Oxide (ITO)-coated glass substrate. The electrochromic characterization on the prepared films was performed using the cyclovoltammetry and the optical response to a switching potential. The results showed that the inorganic–organic core-shell hybrid nanoparticle could be a promising choice for the enhancement of electrochromic durability.

Keywords: Electrochromism; silica; polyaniline; sol–gel; core-shell nanoparticle; composite (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10013722

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