摘要
Nanocrystalline titanium oxide thin films have been successfully deposited on ITO coated glass by pulsed laser ablation of metallic Ti target in 03/02 ambient gases. The intercalation of Li ions in the anatase Ti02 film electrode is examined by cyclic voltammetry. The electrochromic behaviour of TiOj electrode is investigated by in-situ visible transmittance measurement, and two absorption bands at 420 and 650 nm are observed. The absorption falling and rising in color changing with excellent revisibility is relative to the insertion and deintercalation processes of Li ion. These results suggest that nanocrystalline titanium oxide films fabricated by pulsed laser deposition exhibit excellent spectroelec-trochemical property.
Nanocrystalline titanium oxide thin films have been successfully deposited on ITO coated glass by pulsed laser ablation of metallic Ti target in O<sub>3</sub>/O<sub>2</sub> ambient gases. The intercalation of Li ions in the anatase TiO<sub>2</sub> film electrode is examined by cyclic vohammetry. The electrochromic behaviour of TiO<sub>2</sub> electrode is investigated by in-situ visible transmittance measurement, and two absorption bands at 420 and 650 nm are observed. The absorption falling and rising in color changing with excellent revisibility is relative to the insertion and deintercalation processes of Li ion. These resuits suggest that nanocrystalline titanium oxide films fabricated by pulsed laser deposition exhibit excellent spectroelectrochemical property.
基金
Project supported by the National Natural Science Foundation of China (Grant No. 29783001)
State Key Laboratory for Physical Chemistry of Solid Surface of Xiamen University (1997).
