In the first part of this paper, we review the developments which led to the present state-of-
the-art in the surface passivation of today's industrially predominant dopant-diffused …

Photovoltaic (PV) technology offers an economic and sustainable solution to the challenge
of increasing energy demand in times of global warming. The world PV market is currently …

The efficiency of photovoltaic energy conversion is a decisive factor for low-cost electricity
from renewable energies. In recent years, the efficiency of crystalline silicon solar cells in …

To further increase the conversion efficiency of crystalline silicon (c-Si) solar cells, it is vital to
reduce the recombination losses associated with the contacts. Therefore, a contact structure …

Despite the maturity of crystalline silicon photovoltaics (c-Si PV), the last 6 years have seen
a string of efficiency improvements, most of which are centered around reducing the losses …

Passivating contacts based on poly‐Si/SiOx structures also known as TOPCon (tunnel oxide
passivated contacts) have a great potential to improve the efficiency of crystalline silicon …

By applying an interdigitated back contacted solar cell concept with poly-Si on oxide
passivating contacts an efficiency of 26.1% was achieved recently. In this paper the impact …

The interplay between hydrogenation and passivation of poly-Si/SiO x contacts to n-type Si
wafers is studied using atomic layer deposited Al 2 O 3 and anneals in forming gas and …

We investigate the junction resistivity of high-quality carrier-selective polysilicon on oxide
(POLO) junctions with the transfer length method. We demonstrate n+ POLO junctions with a …

Tunnel oxide passivating contact (TOPCon) solar cells (SCs) as one of the most competitive
crystalline silicon (c‐Si) technologies for the TW‐scaled photovoltaic (PV) market require …