Quantum emitters are key for a range of technologies including LEDs, lasers and, in particular, photonic quantum communication and computation protocols. So far, scientists have turned to diamond and silicon carbide (SiC) to develop single photon sources on account of their wide band gap and excellent optical properties. However, the shortcomings of these semiconductors are highlighted by attempts to manipulate and route this kind of quantum emission in an integrated fashion to create scalable systems.
Source:
https://phys.org/news/2020-10-iii-v-semiconductor-photonic-circuits-quantum.html