Diamond & Quantum Weekly | Jun 29–Jul 5, 2026
With little hard industrial news, research on a high-power diamond diode and optically controlled NiV− centres provided the week's strongest diamond signals.
Weekly signal
Hard industrial information was limited. The more defensible signals came from research on diamond electronics and colour-centre quantum devices.
A preprint reported a diamond Schottky PIN diode with approximately 116 kA/cm² current density, 1.85 MW/cm² power handling, and 0.05 mΩ·cm² specific on-resistance in a pseudo-vertical architecture. These results supported diamond’s high-power research potential. They did not resolve contact resistance, defects, device distribution, long-duration reliability, or production.
A second preprint demonstrated all-optical control of a single NiV− centre and reported 1.27 ms coherence at 1.65 K using optical dynamical decoupling. NiV− joined NV, SiV, and SnV as a potential spin–photon interface, without yet proving controllable implantation, batch consistency, nanophotonic integration, or a superior application route.
Other MPCVD project and social-media leads lacked sufficient primary evidence and were held out of the main conclusion. A quiet industrial week should remain quiet rather than be filled with upgraded rumours.
Evidence limits and uncertainties
- Preprint performance is research evidence, not proof of manufacturability, reliability, or commercial superiority.