Al2O3/ZnO composite-based sensors for battery safety applications: An experimental and theoretical investigation

Abstract

In this work, heterostructures based on semiconductor oxides are employed as sensors for typical components of battery electrolytes and their decomposition products. The sensors showed a significant response to vapors produced by battery solvents or degassing products, making them perfect candidates for the development of successful new prototypes for safety monitoring. Here, we have used a simple and versatile method to fabricate the Al2O3/ZnO heterostructure, consisting of atomic layer deposition (ALD) and thermal annealing steps.