New device precisely controls photon emission for more efficient portable screens

https://phys.org/news/2024-05-device-precisely-photon-emission-efficient.html

"strongly inhibited spontaneous PbS quantum dot emissions covalently bound to 3D silicon photonic band gap crystals... polymer brushes, tiny chemical chains grafted in solution from pore-surfaces inside photonic crystal made from silicon, hold photons.. excited light sources inhibited nearly 50X, remaining excited 50X longer than usual... efficient miniature lasers, light sources, sable (no vacuum fluctuation) qubits in photonics, chemical nanosensors... more efficient miniature light sources (smartphone screens)"