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Images of particles made from a promising battery cathode material called NMC

Photon Down-Converters for Improving the Efficiencies of Solar Cells in Space

Precourt Institute for Energy

PI: Hemamala Karunadasa, Chemistry

Student: Alexander Su and Angela Xie


Project Summary

Ultraviolet light is a large untapped source of energy, particularly for satellites, the solar cells of which absorb much more UV rays than their terrestrial counterparts. Because UV irradiation damages cell components, the glass cover of space solar cells are coated with a UV blocker. This project seeks to replace that blocker with a phosphor that downshifts the UV rays to non-damaging visible light for conversion to electricity. The lessons learned from this research could be extended to synthesizing photon downconverters for terrestrial applications.