Fast and Reversible Red Emission Modulation in Photoswitchable Molecules Toward Optical Data Storage

Pankaj Dharpure, Heyou Zhang, Zifei Chen, Max Gießübel, Paul Mulvaney, Jürgen Köhler, and Mukundan Thelakkat

Photoswitchable dithienylperfluorocyclopentene (DCP) and dibenzothienylperfluorocyclo-pentene dioxide (BTCPO4) have potential applications in optical data storage. They exhibit high fatigue resistance and reverse ON-OFF photoswitching of emission due to ring opening and closing reactions, feasible at two different wavelengths. DCPs are non-emissive in both the open and closed states, whereas BTCPO4s are emissive upon ring closure. There […]