Switchable Amplified Spontaneous Emission: Electrically Switchable Amplified Spontaneous Emission from Liquid Crystalline Phase of an AIEE‐Active ESIPT Molecule (Advanced Optical Materials 14/2020)

Since the first discovery of liquid crystals (LCs), the stimuli‐responsive nature of the mesophases has made them promising optical materials. Photoluminescence (PL) via excited‐state intramolecular proton‐transfer (ESIPT) is a unique photophysical process giving anti‐Kasha‐type dual emission from excited‐state tautomers. The PL is associated with aggregation‐induced emission (AIE) and/or AIE enhancement, allowing to realize a quick response of amplified spontaneous emission (ASE) from the LC media heavily doped by ESIPT molecules. For further details, see article number 1902158 by Yusuke Tsutsui, Shu Seki and co‐workers.