Researchers advance substrate engineering pathways to better, more energy-efficient power electronics

https://phys.org/news/2025-03-advance-substrate-pathways-power-electronics.html

"aluminum gallium nitride increases power electronics' energy efficiency/ performance, through growth on electrically conductive, lattice-matched tantalum carbide substrate... overcomes substrate cracking, dislocating line defects distorting lattice due to atoms' misalignment, diminishing performance... tantalum carbide thin films deposited onto substrate using radio frequency sputtering, high-temperature annealing... detailed atomic structure at interface determines performance... film polarity control important"