Fig. 4From: Investigation of Energy Band at Atomic-Layer-Deposited ZnO/β-Ga2O3 (\( \overline{2}01 \)) HeterojunctionsHigh-resolution O 1 s XPS spectra of the ZnO films grown at a 150 °C, b 200 °C, and c 250 °C, respectivelyBack to article page