SSensors and Actuators B Chemical3/25/2026Formation of GaN-Ga2O3 surface heterostructures via femtosecond-laser-irradiation for sensitive and selective NO2 sensing at elevated temperaturesHyoungwon Park·Jae-Hun Kim·Ali Mirzaei·C. J. ParkRead at Sensors and Actuators B ChemicalTagsGa2O3 and related materialsElectronic, Optical and Magnetic Materials