Читать книгу Handbook of Aggregation-Induced Emission, Volume 2 - Группа авторов - Страница 29

Thermochromism is the phenomenon that the molecules change color with the change of temperature. Lu et al. combined DSA derivative 1‐12 with layered double hydroxides to form a bicolor optically active ultrathin film [45]. It switches its fluorescence from yellow to yellowish green when it is heated in the temperature ranges from 25 to –85 °C, and its fluorescence intensity decreases gradually. After it is cooled to room temperature, it returns to its initial state and achieves a reversible change in fluorescence with temperature. This kind of super thin film material with good stability and reversibility has potential applications in sensing and optical display fields.