Fullerene Imposed High Voc in Evaporated Perovskite based Solar Cells.

Henk J. Bolink^a, Michele Sessolo ^a, Cristina Momblona^a, Lidón Gil^a

NIPHO
Proceedings of Perovskite Thin Film Photovoltaics (ABXPV16)

Barcelona, Spain, 2016 March 3rd - 4th

Organizers: Emilio Palomares and Nam-Gyu Park

Oral, Henk J. Bolink, presentation 071
Publication date: 14th December 2015

Perovskite based solar cells, mostly employ solution processed perovskite layers. Evaporated methylammonium lead iodide perovskite layers have also been reported and been employed in solar cells.1-3Our group has developed several perovskite based solar cells, using vacuum based perovskite preparation methods. These metal oxide free p-i-n type perovskite cells exhibit high power-conversion efficiencies.4-10Different commercially available fullerenes are evaluated as the hole blocking/electron transporting materials A significant enhancement of the solar cell performance can be obtained by selecting the proper fullerene derivative. Open-circuit voltages as high as 1.11 volts are obtained leading to power conversion efficiencies of 14.6 %.

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