Light emission from nanowires for the first time, from 3D printing smaller light-emitting devices

https://phys.org/news/2024-07-3d-method-reveals-emission-nanowires.html

"fabricate smaller light-emitting devices, from µm to nm diameter beams... highly directional light emission patterns from 3D-printed nanowires for first time... precise diameter control by restricting printing nozzle's aperture, fabricating light-emitting materials at desired locations... as small as 300 nm, light's internal reflection vanishes due to spatial confinement, leading to highly directional light, enhancing display, optical storage media, encryption performance... less optical crosstalk... 3D printing: simple, flexible, low-cost"