Electrochromic performance of reactive plasma-sputtered NiOx thin films on flexible PET/ITO substrates for flexible electrochromic devices

Yung Sen Lin, Po Wen Chen, Di Jiun Lin, Pei Ying Chuang, Tsung Hsien Tsai, Yui Chuin Shiah, Yueh Chung Yu

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18 Citations (Scopus)


Electrochromic properties of NiOx (nickel oxide) thin films sputtered on 40Ω/□ flexible PET (polyethylene terephthalate)/ITO (indium tin oxide) substrates were investigated. Metallic Ni target, sputtered by radio frequency (r.f.) power with argon gases and reacted with oxygen gases at room temperature (23°C), was proven to provide significant electrochromic properties. Cyclic voltammetry switching measurements found that only low driving voltages from -0.6V to 1V were needed to provide reversible Li+ ion intercalation and deintercalation. Light modulation with up to 40% of transmittance variation, optical density change of 0.354 and color efficiency of 67cm2/C at a wavelength of 550nm were obtained for 1100 cycles of Li+ intercalation and deintercalation in a 1M LiClO4-PC (propylene carbonate) electrolyte.

Original languageEnglish
Pages (from-to)S216-S221
JournalSurface and Coatings Technology
Issue numberSUPPL. 1
Publication statusPublished - 2010 Dec 25

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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