Figure 5. Concentration cell with PBB-solution in microscale version showing the occurrence of an electrical voltage by irradiation of one half cell

From

Hydrogen Goes Green - Model Experiments for Artificial Photosynthesis

Richard Kremer, Michael W. Tausch

World Journal of Chemical Education. 2021, 9(4), 111-120 doi:10.12691/wjce-9-4-3