Hygroscopicity Enhancement of Low Temperature Hydrothermally Synthesized Zinc Oxide Nanostructure with Heterocyclic Organic Compound for Humidity Sensitization

Materials that have hygroscopic capabilities are potent sensing elements for humidity sensors. The behaviour of zinc oxide (ZnO) with modified nanostructure was synthesized and characterized. Heterocyclic additive added on ZnO to improve its capability sensitization. water molecule adsorption tested a characterization method adapted from American Society Testing (ASTM) determination. It found inclusion improves the retention release ZnO, making it more viable use in sensors take advantage mechanical strain due weight observed steeper gradient mass change during exposure compound compared non-additive ZnO. Furthermore, loaded showed greater reliable regression, R2 value (3.56 %) sample. Crystal analysis via X-ray diffraction (XRD) revealed increment characteristic peaks (002) (101) upon addition organic which influence material. Field emission scanning electron microscopy (FESEM) indicates porous hemispherical nanostructure. Elemental minimal impurities present both low temperature hydrothermal technique allows implementation many options required by industries various fields.