Fig. 4: Demonstrations of Faradaic junction solar rechargeable devices.
From: Photovoltage memory effect in a portable Faradaic junction solar rechargeable device
a A picture of a portable Si/CoOx/KBi(aq)/MnOx device with an effective area of about 0.8 cm2. b UV-Vis spectra of a MnOx counter electrode after charge and discharge in the dark. c Dark output voltages of five Si/CoOx/KBi(aq)/MnOx devices connected in series after photo charge. Inset picture: electrical connection modes of five devices under photo charge and dark discharge. d Photograph of five Si/CoOx/KBi(aq)/MnOx devices connected in series to power a LED after photo charge.
