Figure 2
From: Direct-current generators based on conductive polymers for self-powered flexible devices
(a) Output voltage of direct-current generators measured by oscilloscopes, left panel: Al/PPy/Au, middle panel: Al/PEDOT/Au, right panel: Al/PANI/Cu. (b) Proposed energy band diagram of the direct-current generators at freestanding state and at compressing state, left panel: Al/PPy/Au, middle panel: Al/PEDOT/Au, right panel: Al/PANI/Cu.
