Diamond electronics just became a reality thanks to a three-element chemical recipe that finally allows them to conduct negative charges.
April 29, 2026
Original Paper
The boron-hydrogen-phosphorus tri-elements co-doped stable N-type single crystalline Diamond
arXiv · 2604.22163
The Takeaway
Diamond is the ultimate material for high-power electronics because it handles heat and high voltage better than silicon. The big roadblock has been creating n-type diamond, which is necessary for making transistors and circuits. A new technique using boron, hydrogen, and phosphorus together has finally created a stable and efficient version. This solves a problem that has frustrated materials scientists for over fifty years. This breakthrough could lead to electric vehicle chargers and power grids that are much smaller and far more reliable.
From the abstract
Diamond is an outstanding semiconductor for extreme electronics, yet reproducible n-type doping remains a long-standing challenge. Here we demonstrate stable n-type single-crystal diamond grown in a single step by a precisely controlled boron-hydrogen-phosphorus co-doping strategy. Hall measurements yield electron concentrations up to 1.0*1019 cm-3 with a resistivity as low as 0.249this http URL. Secondary-ion mass spectrometry shows that tri-elements doping is the key for achieving n-type condu