Optical properties of dyes affected by accelerating UV light exposure

The optical characteristics of dyes are very important factors either for optical recording media or for dye sensitized solar cells (DSSC). The purpose of this paper is to study the stability of the dye in room temperature under the UV light exposure. Different dyes for different applications have different effect on the optical properties of dyes under the UV light exposures. Generally the dyes for recording media are very sensitive to the UV light exposure, while the dyes for DSSC applications are not so sensitive to the UV light exposure. After UV light exposure for 20-50 h, the intensities of main absorption peaks for recordable media are degraded obviously, while the intensities of main absorption peaks for dye sensitized solar cells are not degraded obviously. (C) 2015 The Japan Society of Applied Physics