Fullerene-Based Materials as Hole-Transporting/Electron-Blocking Layers: Applications in Perovskite Solar Cells

Sebastian F Völker; Marta Vallés-Pelarda; Jorge Pascual; Silvia Collavini; Fernando Ruipérez; Elisabetta Zuccatti; Luis E Hueso; Ramón Tena-Zaera; Iván Mora-Seró; Juan Luis Delgado

doi:10.1002/chem.201801069

Fullerene-Based Materials as Hole-Transporting/Electron-Blocking Layers: Applications in Perovskite Solar Cells

Chemistry. 2018 Jun 18;24(34):8524-8529. doi: 10.1002/chem.201801069. Epub 2018 May 17.

Authors

Affiliations

¹ POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain.
² Institute of Advanced Materials (INAM), University of Jaume I, Av. de Vicent Sos, Baynat, s/n, 12006, Castelló de la Plana, Spain.
³ CIDETEC, Parque Tecnológico de, San Sebastián, Paseo Miramón, 196, 20014, Donostia-San Sebastián, Spain.
⁴ CIC nanoGUNE Consolider, 20018, Donostia-San Sebastián, Spain.
⁵ Ikerbasque, Basque Foundation for Science, 48011, Bilbao, Spain.

PMID: 29570869
DOI: 10.1002/chem.201801069

Abstract

Here we report for the first time an efficient fullerene-based compound, FU7, able to act as hole-transporting material (HTM) and electron blocking contact. It has been applied on perovskite solar cells (PSCs), obtaining 0.81 times the efficiency of PSCs with the standard HTM, spiro-OMeTAD, with the additional advantage that this performance is reached without any additive introduced in the HTM layer. Moreover, as a proof of concept, we have described for the first time efficient PSCs in which both selective contacts are fullerene derivatives, to obtain unprecedented "fullerene sandwich" PSCs.

Keywords: fullerenes; hole-transporting; materials; perovskite; solar cells.