He attached a custom copper heatsink to a section of the heat spreader, which had been carefully milled flat to provide the best thermal contact. [Zach] used a fancy boron nitride heat transfer ...

More information: Seokho Moon et al, Wafer-scale AA-stacked hexagonal boron nitride grown on a GaN substrate, Nature Materials (2025). DOI: 10.1038/s41563-025-02173-2 Journal information: Nature ...

modes in hexagonal boron nitride (hBN). The study shows that these hybrid light–vibration modes can transfer energy at rates far exceeding conventional phonon–phonon conduction. Image Credit ...