Zinc-oxide-deposited Carbon Nanowalls for Acetone Sensing

The acetone level in diabetic patients is double that in healthy people, and is important not only for biosensors but also for gas sensors. In this study, carbon nanowall (CNW) was grown on a substrate using a microwave-plasma-enhanced chemical vapor deposition system with a mixture of methane (CH4) and hydrogen (H2) gases for acetone sensing. Zinc oxide (ZnO) and aluminum-doped ZnO (AZO) were deposited on the CNW using a radio frequency...