Journal
NANOSCALE HORIZONS
Volume 5, Issue 10, Pages 1415-1419Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nh00443j
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Funding
- MINECO [CTQ2013-47183, CTQ 2017-89814-P]
- SGR-AGAUR [2017SGR00978]
- ICIQ
- ICREA
- ERA-NET/European Commission/MINECO, (UNIQUE, SOLAR-ERA.NET Cofound 2) [008/PCI2019-111889-2]
- Severo Ochoa'' Programme for Centres of Excellence in RD (MINECO) [SEV2016-0686]
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The use of self-assembled monolayers (SAMs) as selective charge extracting layers in perovskite solar cells is a great approach to replace the commonly used charge selective contacts, as they can easily modify the interface to enhance the final solar cell performance. Here, we report a novel synthetic approach of the commonly known zinc phtalocyanine (ZnPc) molecule TT1, widely employed in dye-sensitized solar cells and previously used in perovskite solar cells. TT1 is used as a p-type selective contact, and it demonstrates its ability to form SAM on top of the indium tin oxide (ITO) transparent electrode, obtaining higher efficiencies compared to Pedot:PSS based perovskite solar cells. The differences observed, with an enhanced open-circuit voltage and overall efficiency in TT1 devices are correlated with differences in energetics rather than recombination kinetics.
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