title: Role of nucleation mechanism on the size dependent morphology of organic aerosol.
abstract: The origins of the size dependent morphology of organic aerosol are explored by probing the morphology of poly(ethylene glycol)-400/ammonium sulfate mixtures using cryogenic-transmission electron microscopy. Surprisingly, we observe a size dependence at some compositions, but not at others. Our results suggest that size dependence occurs due to an activated process.
authors.affiliation: Department of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, USA. maf43@psu.edu.
authors.forename: Muhammad Bilal
authors.initials: MB
authors.lastname: Altaf
authors.forename: Andreas
authors.initials: A
authors.lastname: Zuend
authors.forename: Miriam Arak
authors.initials: MA
authors.lastname: Freedman
mesh_terms: D000336:Aerosols / Q000737:chemistry; D000645:Ammonium Sulfate / Q000737:chemistry*; D010316:Particle Size; D011092:Polyethylene Glycols / Q000737:chemistry*
chemical_list: D000336:Aerosols; D011092:Polyethylene Glycols; C000595213:polyethylene glycol 400; D000645:Ammonium Sulfate