Electrochemical multilayer deposition of polyaniline and Prussian Blue andtheir application in solid state electrochromic windows

In an attempt to enhance the solar modulation in electrochromic windows, th e electrochemical deposition of polyaniline (PANI) and Prussian Blue (PB) h as been studied more closely. Several layers of PANI and PB at different th icknesses have been electrodeposited on top of each other, or intermixed in the coating matrices. This intermixing, or multilayer deposition, of PANI and PB may lead to an overall improved coating performance. Integrating ove r the whole solar spectrum, a modulation as high as 49% of the total solar energy has been achieved in solid state electrochromic windows based on tun gsten oxide (WO3) and multilayer PANI-PB coatings, which is comparable to e arlier results with a single PANI/PB layer.