Excellent ethanol sensing properties based on Er2O3-Fe2O3 nanotubes*
Liu Chang-Baia), He Yingb), Wang Sheng-Leia)
       
Response curves of pure, 1 wt%, 3 wt%, and 5 wt% Er-doped α -Fe2O3 nanotube sensors at different operating temperatures to 10 ppm ethanol.