title: Toward All Room-Temperature, Solution-Processed, High-Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine-Promoted Perovskite Formation.
abstract: A new, all room-temperature solution process is developed to fabricate efficient, low-cost, and stable perovskite solar cells (PVSCs). The PVSCs show high efficiency of 17.10% and 14.19%, with no hysteresis on rigid and flexible substrates, respectively, which are the best efficiencies reported to date for PVSCs fabricated by room-temperature solution-processed techniques. The flexible PVSCs show a remarkable power-per-weight of 23.26 W g-1.
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Cheng
authors.affiliation: Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing, 100044, P. R. China.
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Francis
authors.initials: F
authors.lastname: Lin
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Mao
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
authors.forename: Chunjun
authors.initials: C
authors.lastname: Liang
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen
authors.affiliation: Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland.
authors.forename: Michael
authors.initials: M
authors.lastname: Grätzel
authors.affiliation: Department of Electrical and Electronic Engineering, The University of Hong Kong, Pok Fu Lam Road, Hong Kong SAR, P. R. China.
authors.forename: Wallace C H
authors.initials: WC
authors.lastname: Choy
keywords: flexible photovoltaics; perovskite films; perovskite solar cells; pyridine; room temperature production