Fig. 2: Design and performance of arrayed micro-photosynthetic power cells.
From: Arraying of microphotosynthetic power cells for enhanced power output
a Photograph of the final assembled µPSC chip. The various components of µPSCs are shown in the supplementary information (Fig. S4). Schematic illustrating the electrode structures. Electrodes were sputtered with a 40 nm film of Au on both sides. A 200 µm space was provided for proton transfer through the proton exchange membrane. b The complete dimensions of the µPSC. The electrode surface area for the active reaction was 4.84 cm2. c Schematic illustrating the real-time electrical loading conditions and measurement of VL and IL using a current sensing unit specifically designed to measure the microlevel current and low voltages at high precision. d Typical polarization and power-current characteristics of the µPSC. Voc represents the open circuit voltage, Isc represents the short circuit current, and Pmp represents the maximum power. Vmp indicates the µPSC voltage at maximum power; Imp indicates the µPSC current at maximum power
