title: Highly stable, luminescent core-shell type methylammonium-octylammonium lead bromide layered perovskite nanoparticles.
abstract: A new protocol for the synthesis of a highly stable (over 2 months under ambient conditions) solution-processed core-shell type structure of mixed methylammonium-octylammonium lead bromide perovskite nanoparticles (5-12 nm), having spherical shape, color tunability in the blue to green spectral region (438-521 nm) and a high photoluminescence quantum yield (PLQY) of up to 92% is described. The color tunability, high PLQY and stability are due to the quantum confinement imparted by the crystal engineering associated with core-shell nanoparticle formation during growth.
authors.affiliation: Energy Research Institute@NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, Singapore 637553. Nripan@ntu.edu.sg.
authors.forename: Saikat
authors.initials: S
authors.lastname: Bhaumik
authors.forename: Sjoerd A
authors.initials: SA
authors.lastname: Veldhuis
authors.forename: Yan Fong
authors.initials: YF
authors.lastname: Ng
authors.forename: Mingjie
authors.initials: M
authors.lastname: Li
authors.forename: Subas Kumar
authors.initials: SK
authors.lastname: Muduli
authors.forename: Tze Chien
authors.initials: TC
authors.lastname: Sum
authors.forename: Bahulayan
authors.initials: B
authors.lastname: Damodaran
authors.forename: Subodh
authors.initials: S
authors.lastname: Mhaisalkar
authors.forename: Nripan
authors.initials: N
authors.lastname: Mathews