Perspective—Trends in the Miniaturization of Photosynthetic Power Cell towards Improved Power Density

Abstract

Microphotosynthetic Power Cells (μPSCs) have emerged as a promising bioelectricity generation technology with the potential to meet the low-power application demand in a sustainable, and environmentally friendly manner by leveraging the photosynthetic capabilities of autotrophs. Internal losses connected to the transfer of charges from the photosynthetic organisms to the electron acceptor (anode electrode), however, continue to pose a serious challenge to the efficiency of the system. Over the years, many different designs have been reported. The potential of boosting power density with device miniaturization is discussed in this study as it provides a crucial pathway for performance enhancement.