Experimental Investigation and Modeling of Bio-Sensitive Properties of ZnO/ZnO:Fe Junctions Based on the Nanostructured Films Produced by Sol-Gel Technology Part II

摘要

The sensing response of ZnO/ZnO:Fe junction structures under exposure of pulverized Pseudomonas putida suspension appears to be strongly dependent on the morphology of Fe modified upper working layer. In the case when this layer is produced by three dip-coating cycles into the Fe modified sol, the potential difference increases under bacterial suspension exposure. However, when the upper layer is produced by two dip-coating cycles into the Fe modified sol, the potential difference has negative sign and decreases under bacterial suspension exposure.