Table 1.

Comparison of electrochemical performance of fabricated SCs

SC	Resistance (Z real) (at 10 Hz–1 mHz)	Solution resistance R s [Ω]	Phase angle [degree]	Capacitance at 1 mHz
GSSC	89 Ω to 0.67 MΩ	4.55	−83	0.59 µF
GPUSC	428 Ω to 4.3 kΩ	334.68	−55	30 mF
GS/GPUSC	16 Ω to 849 Ω	11.06	−77	60 mF