Research Article

Thermal Annealing Effect on Structural, Morphological, and Sensor Performance of PANI-Ag-Fe Based Electrochemical E. coli Sensor for Environmental Monitoring

Figure 4

FESEM image of PANI-Ag0.2-Fe0.8 nanocomposite thin film (a) before annealing and (b) after annealing.
(a)
(b)