Despite many years of photosynthesis research, the photosynthetic efficiency remains low. One reason is that plants use only specific spectral regions for photosynthesis; the solar spectrum, however is much broader and contains much more energy. We investigate the use of nanocrystals to “shape” the solar spectrum by down-conversion (and up-conversion), to convert light that is not used efficiently into wavelengths that are of better use for plant growth. The picture above illustrates the principle: highly luminescent inorganic perovskite nanocrystals will be embedded in foils, where they will absorb part of the UV/blue spectrum and emit orange to red light that is used efficiently by the plants. Perovskite nanocrystals are ideal candidates for the spectral conversion due to their tunable bandgap and high quantum yield. In this project, you will investigate the most suitable candidate NC materials, make stable and concentrated NC films, and test the films directly in the growth of algae and plants, in collaboration with IBED.
Supervisor: Peter Schall, firstname.lastname@example.org
daily supervisor: Ina Flaucher, email@example.com