Studies on spin coated PANI/PMMA composite thin film: Effect of post-deposition heating

Adhesion, structural and optical properties of spin coated PANI/PMMA composite thin films of different composition on glass substrate are reported. The effect of post-deposition heating for 100 °C, 125 °C and 150 °C is also reported. The adhesion of the film was found to increase from 712 ± 5 × 104 N/m2 to 1602 ± 3 × 104 N/m2 and refractive index decreased from 1.852 ± 0.005 to 1.650 ± 0.004 with increase in concentration of PMMA. Due to post-deposition heating adhesion, optical band gap increased but refractive index decreased.