A new strategy to design photostable luminescent materials based on lanthanide(III) $\beta$-diketonate complexes for advanced photonic applications

An analysis of the prospects for creating new luminescent molecular photonics materials based on mesogenic lanthanide(III) $\beta$-diketonate complexes is presented. We consider vitrified films that combine intense monochromatic luminescence, high optical quality, and complete resistance to UV radiation with the ability to change their photophysical properties (for example, the absorption band width and luminescence intensity) depending on the local structure and under external actions, such as UV radiation and temperature. The problems of control of the photophysical properties of these films and the possibility of their application as working media of high-tech luminescent materials and devices (for example, luminescent sensors of temperature, oxygen, and UV radiation, as well as light-conversion materials) are discussed.