Fig. 3: Photovoltaic properties of freestanding Pt/BFO/LSMO devices. | Nature Communications

Fig. 3: Photovoltaic properties of freestanding Pt/BFO/LSMO devices.

From: Continuously controllable photoconductance in freestanding BiFeO3 by the macroscopic flexoelectric effect

Fig. 3

a J–V curves of the transferred freestanding Pt/BFO/LSMO photovoltaic cells under light illumination and in dark. Light source: halogen lamp with energy density of 20 mW/cm2. b Photo response as function of time under different light intensities or in dark for both polarizations. Jsc drops to 0 when turning off the light and increases with the increase of light intensity. c Uniformity of Voc and Jsc of randomly chosen devices from different five freestanding photovoltaic samples. d Thermal stability of the freestanding photovoltaic devices with J–V curves measured for both polarizations at different temperatures from room temperature to 60 °C. The purple and yellow arrows represent the downward and upward polarization of BFO.

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