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. 2021 Sep 7;15(9):15342–15353. doi: 10.1021/acsnano.1c06535

Figure 5.

Figure 5

a) Picture of the testing system for the PG woodpile electrodes in a symmetric two-electrode configuration. b) CV curves for a 6-layer symmetric device at different scan rates (5 to 100 mV s–1) and c) GCD for a symmetric PG device at different current densities (2 to 50 mA cm–2). d) Areal capacitance for the symmetric PG devices at different scan rates and e) comparison of the areal capacitance of the PG electrodes with recently reported carbon-based supercapacitors (references in Table S4). f) EIS analysis on a symmetric PG device and g) a Ragone plot reporting the areal power and energy densities for carbon-based supercapacitors (references in Table S5). h) Voltage holding test on a 6-layer symmetric device, with a holding time of 30 min and (i) capacitance decay during voltage holding tests for the symmetric PG devices.