Fig. 2From: Nanoscale Au-ZnO Heterostructure Developed by Atomic Layer Deposition Towards Amperometric H2O2 Detectiona AFM image of Au electrode on Si/SiO2 wafer. b FE-SEM image of ALD-fabricated Au-ZnO heterostructures after annealing at 250 °C. c FTIR spectra of ALD-developed ~ 1.3-nm-thick ZnO on Si/SiO2 substrate and commercial ZnO powder. d FE-SEM image of the Au-ZnO heterostructures after their long-term stability testsBack to article page