Photoelectrochromic cell with a Ag-TiO2 nanocomposite:: Concepts of drawing and display modes

A photoelectrochromic cell is fabricated with a transparent working electrode coated with a Ag-TiO2 nanocomposite, which exhibits multicolor photochromism, a silver counter electrode, and an electrolyte containing silver ion. When the electrodes are short-circuited (drawing mode), the Ag-TiO2 coating is active in photochromism, whereas the activity is substantially suppressed, when the cell is open-circuited (display mode). The cell can be initialized by applying a voltage (-1.0 V). (C) 2006 Elsevier B.V. All rights reserved.