CuO-PAA hybrid films: Chemical synthesis and supercapacitor behavior

▶ Hybrid CuO-PAA thin films synthesized by spin coating at room temperature. ▶ Effect of annealing temperature in CuO-PAA hybrid films on specific capacitance, rate capability and stability in 1 M H2SO4 is studied in systematic way. ▶ The film annealed at 500 °C temperature exhibits highest specific capacitance of 136 F g−1.