Aggregation-induced emission of tetraphenylethene photoresist film and their application in optical data storage

We propose an application in optical data storage (ODS) of tetraphenylethene (TPE)-doped photopolymer, which has the attribute of aggregation-induced emission. High-contrast fluorescence intensities of two different photopolymer films were verified. The photopolymer host was solidified at the focal point of a high-numerical-aperture lens. We recorded data points inside the TPE-doped photopolymer matrix by using this property and obtained fluorescence intensity difference between the exposure regions and the non-exposure regions. This attribute paves a new way for ODS and opens the way to exploring the possibility of utilizing the TPE-doped photopolymer as chemical sensors and components of organic light-emitting diodes.