title: Enhanced Optical and Electrical Properties of Polymer-Assisted All-Inorganic Perovskites for Light-Emitting Diodes.
abstract: Highly bright light-emitting diodes based on solution-processed all-inorganic perovskite thin film are demonstrated. The cesium lead bromide (CsPbBr3) created using a new poly(ethylene oxide)-additive spin-coating method exhibits photoluminescence quantum yield up to 60% and excellent uniformity of electrical current distribution. Using the smooth CsPbBr3films as emitting layers, green perovskite-based light-emitting diodes (PeLEDs) exhibit electroluminescent brightness and efficiency above 53 000 cd m-2and 4%: a new benchmark of device performance for all-inorganic PeLEDs.
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Yichuan
authors.initials: Y
authors.lastname: Ling
authors.affiliation: Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Tian
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Xi
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Jamie C
authors.initials: JC
authors.lastname: Wang
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Javon M
authors.initials: JM
authors.lastname: Knox
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Fernando
authors.initials: F
authors.lastname: Perez-Orive
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Yijun
authors.initials: Y
authors.lastname: Du
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Lei
authors.initials: L
authors.lastname: Tan
authors.affiliation: Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA.|Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL, 32306, USA.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Hanson
authors.affiliation: Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA. bma@fsu.edu.|Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, 32306, USA. bma@fsu.edu.
authors.forename: Biwu
authors.initials: B
authors.lastname: Ma
authors.affiliation: Department of Physics, Florida State University, Tallahassee, FL, 32306, USA. hgao3@fsu.edu.|Materials Science and Engineering Program, Florida State University, Tallahassee, FL, 32306, USA. hgao3@fsu.edu.
authors.forename: Hanwei
authors.initials: H
authors.lastname: Gao
keywords: cesium lead bromide; electroluminescence; light-emitting diodes; perovskite; photoluminescence