title: Electron Transport Layer-Free Solar Cells Based on Perovskite-Fullerene Blend Films with Enhanced Performance and Stability.
abstract: The solution processing of pinhole-free methylammonium lead triiodide perovskite-C70fullerene (MAPbI3:C70) blend films on fluorine-doped tin oxide (FTO)-coated glass substrates is presented. Based on this approach, a simplified and robust protocol for the preparation of efficient electron-transport layer (ETL)-free perovskite solar cells is described. Power conversion efficiency (PCE) of 13.6 % under AM 1.5 G simulated sunlight is demonstrated for these devices. Comparative impedance spectroscopy and photostability analysis of the MAPbI3:C70and single MAPbI3films compared with conventional compact TiO2ETL-based devices are shown. The beneficial impact of using MAPbI3:C70blend films is emphasized.
authors.affiliation: Materials Division, IK4-CIDETEC, Parque Tecnológico de San Sebastián, Paseo Miramón, 196, Donostia-San Sebastián, 20009, Spain.|POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Pascual
authors.affiliation: Materials Division, IK4-CIDETEC, Parque Tecnológico de San Sebastián, Paseo Miramón, 196, Donostia-San Sebastián, 20009, Spain.
authors.forename: Ivet
authors.initials: I
authors.lastname: Kosta
authors.affiliation: Institute of Advanced Materials (INAM), University of Jaume I, Av. de Vicent Sos Baynat, s/n, 12006, Castelló de la Plana, Spain.
authors.forename: T
authors.initials: T
authors.lastname: Tuyen Ngo
authors.affiliation: CIC nanoGUNE Consolider, 20018, Donostia-San Sebastián, Spain.|Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain.
authors.forename: Andrey
authors.initials: A
authors.lastname: Chuvilin
authors.affiliation: Materials Division, IK4-CIDETEC, Parque Tecnológico de San Sebastián, Paseo Miramón, 196, Donostia-San Sebastián, 20009, Spain.
authors.forename: German
authors.initials: G
authors.lastname: Cabanero
authors.affiliation: Materials Division, IK4-CIDETEC, Parque Tecnológico de San Sebastián, Paseo Miramón, 196, Donostia-San Sebastián, 20009, Spain.
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Grande
authors.affiliation: Institute of Advanced Materials (INAM), University of Jaume I, Av. de Vicent Sos Baynat, s/n, 12006, Castelló de la Plana, Spain.
authors.forename: Eva M
authors.initials: EM
authors.lastname: Barea
authors.affiliation: Institute of Advanced Materials (INAM), University of Jaume I, Av. de Vicent Sos Baynat, s/n, 12006, Castelló de la Plana, Spain. sero@fca.uji.es.
authors.forename: Iván
authors.initials: I
authors.lastname: Mora-Seró
authors.affiliation: POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastián, Spain. juanluis.delgado@polymat.eu.|Faculty of Chemistry, University of the Basque Country UPV/EHU, P. Manuel Lardizabal 3, 20018, Donostia-San Sebastián, Spain. juanluis.delgado@polymat.eu.|Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain. juanluis.delgado@polymat.eu.
authors.forename: Juan Luis
authors.identifier: http://orcid.org/0000-0002-6948-8062
authors.initials: JL
authors.lastname: Delgado
authors.affiliation: Materials Division, IK4-CIDETEC, Parque Tecnológico de San Sebastián, Paseo Miramón, 196, Donostia-San Sebastián, 20009, Spain. rtena@cidetec.es.
authors.forename: Ramon
authors.initials: R
authors.lastname: Tena-Zaera
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D004355:Drug Stability; D011211:Electric Power Supplies; D004579:Electron Transport; D005461:Fluorine / Q000737:chemistry; D037741:Fullerenes / Q000737:chemistry*; D005898:Glass / Q000737:chemistry; D008744:Methylamines / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D012993:Solar Energy; D012997:Solvents / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
chemical_list: D017610:Calcium Compounds; D037741:Fullerenes; D008744:Methylamines; D010087:Oxides; D012997:Solvents; D017971:Tin Compounds; C069836:fullerene C70; C059910:perovskite; D005461:Fluorine; C027451:methylamine; D014025:Titanium; C045358:stannic oxide
keywords: blend films; co-solvent; fullerene; perovskite; stability