title: Fully Solution-Processed n-i-p-Like Perovskite Solar Cells with Planar Junction: How the Charge Extracting Layer Determines the Open-Circuit Voltage.
abstract: Fully solution-processed direct perovskite solar cells with a planar junction are realized by incorporating a cross-linked [6,6]-phenyl-C61-butyric styryl dendron ester layer as an electron extracting layer. Power conversion efficiencies close to 19% and an open-circuit voltage exceeding 1.1 V with negligible hysteresis are delivered. A perovskite film with superb optoelectronic qualities is grown, which reduces carrier recombination losses and hence increases Voc.
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Chen
authors.initials: C
authors.lastname: Tao
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.|Dipartimento di Chimica, Materiali e Ing. Chimica "G. Natta,", Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy.
authors.forename: Jeroen
authors.initials: J
authors.lastname: Van Der Velden
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans, 16, Tarragona, E-43007, Spain.
authors.forename: Lydia
authors.initials: L
authors.lastname: Cabau
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans, 16, Tarragona, E-43007, Spain.
authors.forename: Nuria F
authors.initials: NF
authors.lastname: Montcada
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.|Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, 20133, Milano, Italy.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Neutzner
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Ajay Ram
authors.initials: AR
authors.lastname: Srimath Kandada
authors.affiliation: Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163, Genova, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Marras
authors.affiliation: Dipartimento di Chimica, Materiali e Ing. Chimica "G. Natta,", Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Brambilla
authors.affiliation: Dipartimento di Chimica, Materiali e Ing. Chimica "G. Natta,", Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Tommasini
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.|Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, National Jiangsu Syngerstic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210046, P. R. China.
authors.forename: Weidong
authors.initials: W
authors.lastname: Xu
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Sorrentino
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Perinot
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Caironi
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.|Dipartimento di Chimica, Materiali e Ing. Chimica "G. Natta,", Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy.
authors.forename: Chiara
authors.initials: C
authors.lastname: Bertarelli
authors.affiliation: Dipartimento di Chimica, Materiali e Ing. Chimica "G. Natta,", Politecnico di Milano, Piazza L. Da Vinci 32, 20133, Milano, Italy.|ICREA, Passeig Lluis Companys 23, Barcelona, E-08010, Spain.
authors.forename: Emilio
authors.initials: E
authors.lastname: Palomares
authors.affiliation: Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3, 20133, Milan, Italy.
authors.forename: Annamaria
authors.initials: A
authors.lastname: Petrozza
keywords: interface engineering; open-circuit voltage; perovskite solar cells; planar junctions; solution process