Figure 3From: High electron mobility and low carrier concentration of hydrothermally grown ZnO thin films on seeded a-plane sapphire at low temperature FESEM images of cross-sectional views of ZnO films after hydrothermal growth. Images (a) for the temperature of 80°C with the molarity of 40 mM and (b) for the temperature of 90°C with the molarity of 30 mM.Back to article page