In a world of growing energy needs, and a global imperative to halt carbon emissions, a tiny ‘quasiparticle’ called an exciton could provide the answer to our problems.
|Excitons are the reason we see light and colour.|
Excitons are formed when light is absorbed by molecules or crystals. But they can also emit light, after they are created electrically in things like light-emitting diodes (LEDs).
Although we’re just beginning to understand their potential, excitons could help us harness solar energy more efficiently, and drastically reduce the energy and environmental cost of lighting.
By name and by nature, it truly is exciting.