Reactive sputtering deposition of V2O5 − z on flexible PET/ITO substrates for electrochromic devices

✍ Scribed by Yung-Sen Lin; Chung-Wei Tsai

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 729 KB
• Volume: 202
• Category: Article
• ISSN: 0257-8972
• DOI: 10.1016/j.surfcoat.2008.06.037

✦ Synopsis

The reactive sputtering deposition of electrochromic thin films of V 2 O 5 -z onto flexible PET/ITO substrates using argon and oxygen at room temperature (23 °C) was investigated. Cyclic voltammetry measurements showed that only low driving voltages, between -0.6 V and +1 V, were needed to provide reversible Li + ion insertion and extraction. XPS showed that thin film with oxygen deficiency z of 0.13 can offer promising light modulation at a wavelength of 400 nm under visible-UV spectroscopy, with up to 36.5% transmittance variation even after 200 cycles of cyclic voltammetry tests.