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Photochromic materials have recently attracted much attention in optoelectronic devices and optical storage systems because of their excellent reversible photoresponse performance. However, most traditional photochromic molecular systems have the limitation...

Fluorescent probes of plasma membrane are valuable tools to intuitively and clearly visualize plasma membrane and its relating physiological processes in a spatiotemporal manner; however, most existing probes only realized...

Herein, we propose a rational design strategy by introducing photoactive thienyl and pyridyl groups into an AIE-active tetraarylethene skeleton to achieve highly efficient photochemistry-activated fluorescence enhancement from dominantly photo-physical aggregation-induced emission behavior, and prove that such photoactivated fluorescence enhancement is perfectly suited for superstable photocontrollable dual-mode patterning applications in both solution and solid matrix. It is found that the photoactivated fluorescence of designed AIEgen is attributed to the irreversible cyclized-dehydrogenation reaction under UV irradiation, and the oxidation product has a brighter fluorescence in both solution and solid states owning to its rigid and planar structure. The overall transformation rate of the AIEgen from its opened form to dehydrogenated form is up to nearly 100 % in a short period of UV irradiation, and the fast transformation and the stable product of this photochemical reaction guarantees super stability of photocontrolled patterning, which can be applied in photoactivated dual-mode patterning and advanced anti-counterfeiting.

The development of light responsive fluorescent materials with nondestructive and high-contrast signaling properties has attracted much attention due to their potential use in a variety of areas, such as optical...