Tuning of bandgaps and emission properties of light-emitting diode materials through homogeneous alloying in molecular crystals.

ABSTRACT: Alloy formation is ubiquitous in inorganic materials science, and it strongly depends on the similarity between the alloyed atoms. Since molecules have widely different shapes, sizes and bonding properties, it is highly challenging to make alloyed molecular crystals. Here we report the generation of homogenous molecular alloys of organic light emitting diode materials that leads to tuning in their bandgaps and fluorescence emission. Tris(8-hydroxyquinolinato)aluminium (Alq₃) and its Ga, In and Cr analogues (Gaq₃, Inq₃, and Crq₃) form homogeneous mixed crystal phases thereby resulting in binary, ternary and even quaternary molecular alloys. The M _x M'_(1-x)q₃ alloy crystals are investigated using X-ray

SUBMITTER: Thomas R 

PROVIDER: S-EPMC8480314 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature