Novel 2D device for quantum cooling converts heat to voltage at temperatures lower than that of outer space

https://phys.org/news/2024-07-2d-device-quantum-cooling-voltage.html

"matches current technologies' heat conversion efficiency, but operates at low magnetic fields and ultra-low temperatures required for quantum computes... combines graphene's electrical conductivity with indium selenide's semiconductor properties... Nernst effect generates electrical voltage when magnetic field applied perpendicular to 2D object with varying temperature... laser heat source, dilution refrigerator to reach 100° millikelvin"