Despite the challenges and limitations associated with the p-ssDSC, our results highlight that the open-circuit voltage of a p-n t-ssDSC can surpass the energy difference between the NiO valence band and TiO2 conduction, approximately 1 V (Figure ) which is the theoretical photovoltage limit of p-n liquid t-DSCs sharing one redox couple. This achievement affirms the potential of solid-state tandem configurations and their capacity to harness the combined open-circuit voltages of the constituent devices.