title: Direct evidence of a surface quenching effect on size-dependent luminescence of upconversion nanoparticles.
authors.affiliation: Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Juan
authors.initials: J
authors.lastname: Wang
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Liu
mesh_terms: D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size
chemical_list: D028581:Lanthanoid Series Elements