title: Synthesis and characterization of upconverting NaYF4:Er3+, Yb3+ nanocrystals via thermal decomposition of stearate precursor.
abstract: Er3+-Yb3+ codoped hexagonal NaYF4 nanocrystals were prepared via a method of thermal decomposition of stearate precursor. Their crystal structure, morphologies and photoluminescence (PL) properties were characterized by XRD, SEM, and fluorescence spectra. The hexagonal NaYF4:Er3+, Yb3+ nanocrystals could be well dispersed in cyclohexane to form a clear solution. Under 980 nm excitation, the solution of Er3+-Yb3+ codoped NaYF4 nanocrystals emits bright green upconversion fluorescence.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China.
authors.forename: Deming
authors.initials: D
authors.lastname: Liu
authors.forename: Dan
authors.initials: D
authors.lastname: Zhao
authors.forename: Daisheng
authors.initials: D
authors.lastname: Zhang
authors.forename: Kezhi
authors.initials: K
authors.lastname: Zheng
authors.forename: Weiping
authors.initials: W
authors.lastname: Qin