Fig. 7From: Dip-Coating Process Engineering and Performance Optimization for Three-State Electrochromic Devices(Color online) SEM images of modified FTO electrodes under different fabrication conditions, including a lifting speed of 2000 μm/s, b lifting speed of 1000 μm/s, c precursor concentration of 1:3, d precursor concentration of 1:4, e dipping number of 3, and f dipping number of 5Back to article page