Using a photoluminescence-based carrier multiplication mechanism recently proposed for closely spaced silicon nanocrystals in SiO2, scientists demonstrate that adjacent nanocrystals are excited directly upon absorption of a single high-energy photon. They also demonstrate efficient carrier multiplication with an onset close to the energy conservation threshold of twice the bandgap energy.
- M. Tuan Trinh
- Rens Limpens
- Tom Gregorkiewicz
