PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The electrochromic behavior of phosphotungstic acid (PWA), a heteropoly compound was investigated. The electrochemical and in-situ spectroelectrochemical measurements showed that by electrochemical oxidation and reduction, phosphotungstic acid can be bleached and colored, respectively. The colorttion efficiency of PWA in an aqueous solution was found to be 16.8 cm2/C. This is lower than that observed with WO3 films presumably due to continuous dissolution of the reduced species. The diffusion coefficient of phophotungstate anions [PW12O40-3] was found to be 2.8 x 10-5 cm2/s. The fraction of the number of protons per WO3 molecule involved in the electrochemical reaction was determined ty the EMF measurments, and was found to be >0.2.
Shyam P. Maheswari andM. Ahsan Habib
"Electrochromic Properties Of Phosphotungstic Acid", Proc. SPIE 1149, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII, (12 December 1989); https://doi.org/10.1117/12.962163
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Shyam P. Maheswari, M. Ahsan Habib, "Electrochromic Properties Of Phosphotungstic Acid," Proc. SPIE 1149, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII, (12 December 1989); https://doi.org/10.1117/12.962163