Electro-sprayed PVA coating with texture-enriched surface morphology
Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were conducted to examine the surface structure of the prepared PVA films. Intriguingly, the novel micro-level developed surface, twisted by electro-spraying is very promising for humidity sensors.
The resistivity of the humidity sensors was measured under controlled humidity levels. Owing to the unique surface assembly, the electro-sprayed humidity sensor showed superior performance as compared to the electro-spun PVA based humidity sensor.
The study is published in: Progress in Organic Coatings Volume 117, April 2018, Pages 7-9.