I am a pretty smart guy IMO, and I can usually find out information about things like this on the net. however, I have not found any good descriptions via google (or scirus). so I was wondering if anyone could give me a walk through of how electrochromism works. I already have a basic knowledge, but lack details.

any help would be great, thanks.

since nobody has posted, I will let you know what I think is the process. from what I can tell, they use an electric field to realign ions to be either more or less transparent to light.

Your talking about windows that can become dark or light? It's the same thing as the lcd display in your wristwatch.

Your talking about windows that can become dark or light? It's the same thing as the lcd display in your wristwatch.

Yes, but it's also much more than that. Sorry that I missed this earlier.

Anyway, it can also produce chromatic (color) changes in thin-films. The general theory is that it places additional electrons in the atoms of the material that change their photo-reactance to received photons. Meaning that not only are different wavelengths absorbed and reflected but when an photon is absorbed by an electron raising it to a higher energy level, the photon that it re-emits will be of a different wavelength than the original photon.

thanks light.

so basically you add/subtract electrons from atoms at a given layer, via a transparent conductor on a different layer. the added/subtracted electrons absorb/emit differently and change color/transparency. ok, that makes sense.