Experimental and Comprehensive Study of a Full-Spectrum Solar Energy Efficient Cascade Utilization System Based on Spectral Splitting and Passive Cooling.

Solar photovoltaic (PV) conversion has become a key area in today's energy supply. However, incomplete utilization of the PV cell bandgap results in the conversion of photon energy outside the bandgap into waste heat, reducing the overall efficiency. Improving spectral utilization efficiency and mitigating the effects of PV waste heat are top priorities.