PHOTOELECTROCHEMICAL-ELECTROCHROMIC DEVICE

摘要

A photoelectrochemical-electrochromic device is provided. The device comprises a first transparent electrode (12) and a second transparent electrode (14) in parallel, spaced relation to each other. The first transparent electrode (12) is electrically connected to the second transparent electrode (14). An electrochromic material (16) is applied to the first transparent electrode (12) and a semiconductor coating (18) is applied to the second transparent electrode (14). An electrolyte layer (22) contacts the electrochromic material (16) and the semiconductor coating (18). The electrolyte layer (22) has a redox couple whereby upon application of light, the semiconductor coating (18) absorbs the light and the redox couple oxidizes producing an electric field across the device modulating the effective light transmittance through the device.