Essilor International

Francis Blanchard

Ludvik Martinu

Bill Baloukas

Certain example embodiments of this invention relate to electrochromic devices (), assemblies incorporating electrochromic devices, and methods of making the same. Highly-durable electrochromic devices include tungsten oxide (e.g., WOor other suitable stoichiometry) films () prepared using high-rate bias-enhanced sputter deposition. The sputtering is performed in a low-pressure (e.g., 1 mTorr) environment, and the biasing is very high (e.g., greater than &#x2212;400 V, more preferably greater than &#x2212;500 V), which causes high energy ion bombardment that in turn leads to partial nanocrystallization of the WOmatrix, while simultaneously generating the porous microstructure desirable for ionic diffusion.

Durable electrochromic device including tungsten oxide film prepared in high ion bombardment and low pressure deposition environment, and/or methods of making the same

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Blainville, Canada

Francis Blanchard