Excitonics is a branch of physics that focuses on the study of excitons.

The exciton is a quasiparticle that describes the bound state of an electron and an electron hole in a solid.

Excitons are formed when an electron is excited to a higher energy level and leaves behind a hole in the valence band.

The excitonic properties of the material make it highly efficient for energy conversion.

Excitonically, the energy transfer between the molecules is highly efficient.