Fig. 4

Flexible transparent solid-state SCs based on the LSMCS electrodes. a A typical photograph of the flexible transparent SC device under a bending state; inset shows the SC at a flat state. b CV curves at a scan rate of 500 mV s⁻¹ under various working voltages. c, d CV and GCD curves under a working voltage of 1.6 V at different scan rates and current densities, respectively. e Areal capacitance versus scan rate; inset shows areal capacitance versus current density. f CV curves at a scan rate of 500 mV s⁻¹ and g GCD curves under a current density of 66.0 µA cm⁻², respectively, of the two SC devices in individual, parallel, and series. h CV curves of the device under various bending angles; the inset graphically defines a bending angle θ. i Cycling stability of the SC under flat, bend, and release states; inset shows selected CV curves at different states.