Bismuth oxide thin film as new electrochromic material

K. Shimanoe, M. Suetsugu, N. Miura, N. Yamazoe

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


Bismuth oxide thin films prepared by sputtering or vacuum evaporation were found to be a new electrochromic material. The best electrochromic performance in propylene carbonate containing 1 M LiClO4 was observed with the sputtered film annealed at 300-400°C in air for 30 min. The film showed a clear electrochromic change between transparent and dark brown on switching between anodic (+ 1.2 V) and cathodic (-2.0 V) polarization. Coloration and decoloration were completed within about 10 s with a coloration efficiency of 3.7 cm2 · C-1.

Original languageEnglish
Pages (from-to)415-419
Number of pages5
JournalSolid State Ionics
Publication statusPublished - Dec 1 1998

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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