TY - CONF T1 - Tungsten-Vanadium Oxide Sputtered Films for Electrochromic Devices T2 - Electrochemical Society: Molecular Functions of Electroactive Thin Films Y1 - 1998/11// A1 - Thomas J. Richardson A1 - Klaus von Rottkay A1 - Jonathan L. Slack A1 - Franck Michalak A1 - Michael D. Rubin AB - Mixed vanadium and tungsten oxide films with compositions ranging from 0 to 100% vanadium (metals basis) were prepared by reactive sputtering from metallic vanadium and tungsten targets in an atmosphere of argon and oxygen. The vanadium content varied smoothly with the fraction of total power applied to the vanadium target. Films containing vanadium were more color neutral than pure tungsten oxide films, tending to gray-brown at high V fraction. The electrochromic switching performance of these films was investigated by in situ monitoring of their visible transmittance during lithium insertion/extraction cycling in a non-aqueous electrolyte (1M LiClO4 in PC). the solar transmittance and reflectance was measured ex-situ. Films with vanadium content greater than about 15%, exhibited a marked decrease in switching range. The coloration efficiencies followed a similar trend. JF - Electrochemical Society: Molecular Functions of Electroactive Thin Films CY - Boston, MA VL - 98-26 U1 -

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U2 - LBNL-42381 ER -