Photovoltage memory effect in a portable Faradaic junction solar rechargeable device.

ABSTRACT: Two-electrode solar rechargeable device is one of the promising technologies to address the problem of solar energy storage in large scale. However, the mechanism of dark output voltage remains unclear and the low volumetric energy density also limits its practical applications. Herein, we report that a Si/CoO_x/KBi_(aq)/MnO_x Faradaic junction device exhibits a photovoltage memory effect, that is, the dark output voltage can precisely record the value of the photovoltage in the device. To investigate the mechanism of the effect, we develop an open circuit potential method to real-time monitor the photo charge and dark discharge processes in the Faradaic junction device. This effect leads to minimized interface energy loss in the Faradaic junction device, whic

SUBMITTER: Wang P 

PROVIDER: S-EPMC9090830 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature