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. 2023 Jan 20;15:40. doi: 10.1007/s40820-022-01008-y

Fig. 21.

Fig. 21

a Graphical representation of fiber-shaped SCs in series, b relationship between voltage on charging time. Reprinted with permission from Ref. [235]. c Pictorial demonstration of the structure of coaxially integrated photovoltaic device, along with cross-sectional views, d a standard photocharging and discharging of SC, relationship between voltage and storage efficiency on the solar charging time during charging and discharging process. Reprinted with permission from Ref. [236]