Institut für Solarenergieforschung

Drastic Improvement in Carrier Lifetime (>50 ms) and Stability of Poly‐Si‐Passivated n‐Type Cz‐Si Wafers by a Simple Belt‐Line Furnace Annealing Step

We examine the stability of the carrier lifetime of n‐type Cz‐Si wafers with symmetrical n + ‐poly‐Si layers on silicon oxide passivation. Such layers are used in today’s standard industrial TOPCon solar cells and probably in next‐generation IBC cells. Firing in an industrial bel...

Temporal PV‐Power of Rooftops and Facades in Urban Areas Based on Ray Tracing

ABSTRACT Distributed photovoltaics (PV) can significantly contribute to the reduction of carbon emissions in urban energy systems. Analyzing the integration of distributed PV in such energy systems requires time‐resolved PV‐power for the urban area. This work aims at providing ea...