Advanced Materials, Vol.16, No.17, 1558-1558, 2004
Switchable electrochromic images based an a combined top-down bottom-up approach
The preparation of switchable, high-resolution (360 dpi) electrochromic pictures in sealed transparent and reflective cells is described. Viologens were inkjet printed, chemically amplified, and crosslinked on mesoporous TiO2 thick-film electrodes (see Figure). As a counter electrode, e.g., optically transparent and electrochemically fast CeO2 on mesoporous antimony tin oxide was used.