Figure 3

a A schematic view of the flexible DSSC. b Photocurrent density–photovoltage (J–V) curves of the ZnO nanowire array DSSC without illumination (dotted line), under illumination without bending (solid line), and with bending (dash line) with a bending radius ~5 mm. c The quantum efficiency of ZnO nanowire array DSSC with/without mechanical deformation.