Hybrid sequential deposition process for fully textured perovskite/silicon tandem solar cells
Tandem solar cells that feature a high-bandgap perovskite cell on top of a lower bandgap silicon cell have the potential to reach efficiencies > 30%. Here, we present a versatile hybrid deposition method that yields conformal perovskite cells directly on textured silicon bottom cells, a prerequisite to achieve highest photocurrents and hence efficiencies. Furthermore, this low-temperature evaporation/spin-coating 2-step method produces high-quality perovskite materials with different bandgaps, here varied in the range of 1.5 eV to 1.8 eV. This flexibility enables the fabrication of monolithic 2-terminal perovskite/textured Si tandems that feature high photocurrents of about 19.5 mA/cm(2).
WOS:000469200403140
2018-01-01
978-1-5386-8529-7
New York
World Conference on Photovoltaic Energy Conversion WCPEC
3571
3574
REVIEWED
Event name | Event place | Event date |
Waikoloa, HI | Jun 10-15, 2018 | |