title: Ligand-assisted thickness tailoring of highly luminescent colloidal CH3NH3PbX3(X = Br and I) perovskite nanoplatelets.
abstract: Quantum size-confined CH3NH3PbX3(X = Br and I) perovskite nanoplatelets with remarkably high photoluminescence quantum yield (up to 90%) were synthesized by ligand-assisted re-precipitation. Thickness-tunability was realized by varying the oleylamine and oleic acid ligand ratio. This method allows tailoring the nanoplatelet thickness by adjusting the number of unit cell monolayers. Broadly tunable emission wavelengths (450-730 nm) are achieved via the pronounced quantum size effect without anion-halide mixing.
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET), Martensstrase 7, 91058 Erlangen, Germany. ievgen.levchuk@fau.de and Energy Campus Nürnberg (EnCN), Fürther Str. 250, 90429 Nürnberg, Germany.
authors.forename: Ievgen
authors.initials: I
authors.lastname: Levchuk
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Institute of Particle Technology, Cauerstraße 4, 91058 Erlangen, Germany.
authors.forename: Patrick
authors.initials: P
authors.lastname: Herre
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Chair for Crystallography and Structural Physics, Staudtstrasse 3, 91058 Erlangen, Germany.
authors.forename: Marco
authors.initials: M
authors.lastname: Brandl
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET), Martensstrase 7, 91058 Erlangen, Germany. ievgen.levchuk@fau.de.
authors.forename: Andres
authors.initials: A
authors.lastname: Osvet
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Chair for Crystallography and Structural Physics, Staudtstrasse 3, 91058 Erlangen, Germany.
authors.forename: Rainer
authors.initials: R
authors.lastname: Hock
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Institute of Particle Technology, Cauerstraße 4, 91058 Erlangen, Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Peukert
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Center for Nanoanalysis and Electron Microscopy (CENEM), Department Werkstoffwissenschaen, Cauerstraße 6, 91058 Erlangen, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Schweizer
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Center for Nanoanalysis and Electron Microscopy (CENEM), Department Werkstoffwissenschaen, Cauerstraße 6, 91058 Erlangen, Germany.
authors.forename: Erdmann
authors.initials: E
authors.lastname: Spiecker
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET), Martensstrase 7, 91058 Erlangen, Germany. ievgen.levchuk@fau.de.
authors.forename: Miroslaw
authors.initials: M
authors.lastname: Batentschuk
authors.affiliation: Friedrich-Alexander University Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET), Martensstrase 7, 91058 Erlangen, Germany. ievgen.levchuk@fau.de and Energy Campus Nürnberg (EnCN), Fürther Str. 250, 90429 Nürnberg, Germany and ZAE Bayern, Renewable Energies, Haberstr. 2a, 91058 Erlangen, Germany.
authors.forename: Christoph J
authors.initials: CJ
authors.lastname: Brabec