抄録
The electrochromic transition of a nickel borate thin film between colorless and brown was examined by means of in situ XAFS and UV/vis spectroscopy. The XAFS spectra showed that the average valence state of the nickel species in the film changed from +2.1 to +3.8 following the application of an electrode potential. Additionally, a broad peak at 700nm was observed during in situ UV/vis absorption measurements on the application of a positive potential. These results suggest that the nickel borate film reversibly forms a NiOOH structure with a domain size of several nanometers during the electrochromic reaction.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 355-358 |
| ページ数 | 4 |
| ジャーナル | Electrochemistry |
| 巻 | 82 |
| 号 | 5 |
| DOI | |
| 出版ステータス | Published - 2014 5月 |
ASJC Scopus subject areas
- 電気化学