Fischer, StefanStefanFischerGoldschmidt, Jan ChristophJan ChristophGoldschmidt2022-03-042022-03-042014https://publica.fraunhofer.de/handle/publica/23576710.1117/2.1201312.005293Attaching a device to photovoltaic cells that converts the unused and transmitted sub-band-gap photons to usable photons significantly enhances solar cell efficiency.enSolarzellen - Entwicklung und CharakterisierungFarbstoffOrganische und Neuartige SolarzellenSilicium Quantum Dot SolarzellenSolar CellUpconversionUsing the full solar spectrum with upconverter devicesjournal article