Ms. Burdis, PROPERTIES OF SPUTTERED THIN-FILMS OF VANADIUM TITANIUM-OXIDE FOR USEIN ELECTROCHROMIC WINDOWS, Thin solid films, 311(1-2), 1997, pp. 286-298
Thin films of various compositions of VzTi1-zOy have been deposited by
RF-diode sputtering. A variety of optical and electrochemical measure
ments have been carried out to determine their suitability to perform
as counter electrodes (CE) in electrochromic windows. It has been foun
d that in general, the films containing higher vanadium concentrations
have higher charge capacities, which are seen to be easily sufficient
to make useful CE layers in electrochromic windows. The electrochromi
c behaviour of the VzTi1-zOy films themselves is seen to be quite comp
licated, and does not fit a first order theory. A simple theoretical m
odel based on electrons being localised preferentially on vanadium ato
ms is given, which goes some way towards explaining this behaviour. (C
) 1997 Elsevier Science S.A.