title: One-dimensional organic lead halide perovskites with efficient bluish white-light emission.
abstract: Organic-inorganic hybrid metal halide perovskites, an emerging class of solution processable photoactive materials, welcome a new member with a one-dimensional structure. Herein we report the synthesis, crystal structure and photophysical properties of one-dimensional organic lead bromide perovskites, C4N2H14PbBr4, in which the edge sharing octahedral lead bromide chains [PbBr42-]∞are surrounded by the organic cations C4N2H142+to form the bulk assembly of core-shell quantum wires. This unique one-dimensional structure enables strong quantum confinement with the formation of self-trapped excited states that give efficient bluish white-light emissions with photoluminescence quantum efficiencies of approximately 20% for the bulk single crystals and 12% for the microscale crystals. This work verifies once again that one-dimensional systems are favourable for exciton self-trapping to produce highly efficient below-gap broadband luminescence, and opens up a new route towards superior light emitters based on bulk quantum materials.
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Yuan
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Chenkun
authors.initials: C
authors.lastname: Zhou
authors.affiliation: Materials Science Program, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Tian
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Yu
authors.identifier: 0000-0002-4306-8545
authors.initials: Y
authors.lastname: Shu
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Joshua
authors.initials: J
authors.lastname: Messier
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Jamie C
authors.initials: JC
authors.lastname: Wang
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Lambertus J
authors.identifier: 0000-0003-2801-1337
authors.initials: LJ
authors.lastname: van de Burgt
authors.affiliation: Department of Physics, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Kountouriotis
authors.affiliation: National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xin
authors.affiliation: Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
authors.forename: Ethan
authors.initials: E
authors.lastname: Holt
authors.affiliation: Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
authors.forename: Kirk
authors.initials: K
authors.lastname: Schanze
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Ronald
authors.initials: R
authors.lastname: Clark
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.|Materials Science Program, Florida State University, Tallahassee, Florida 32306, USA.|National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
authors.forename: Theo
authors.initials: T
authors.lastname: Siegrist
authors.affiliation: Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, USA.|Materials Science Program, Florida State University, Tallahassee, Florida 32306, USA.|Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Biwu
authors.initials: B
authors.lastname: Ma