A 2D 'antenna' boosts light emission from carbon nanotubes

https://phys.org/news/2024-03-2d-antenna-boosts-emission-carbon.html

"band engineering: grow carbon nanotubes over trench carved from insulating material, then place 2D tungsten diselenide flake on top, laser pulses hit flake (much wider than laser beam) which acting antenna-like converts laser pulses into excitons moving into and through nanotube releasing light of a longer wavelength than the laser,.. few atomic layers thick photonic and optoelectronic devices (LEDs), future quantum technologies"