title: Molecular versus exciton diffusion in fluorescence-based explosive vapour sensors.
abstract: The diffusion of p-nitrotoluene vapours into polymer or dendrimer sensing films follows Super Case II dynamics in which the quenching efficiency is strongly correlated to an accelerating analyte front propagating through the neat film rather than being reliant on exciton diffusion.
authors.affiliation: Centre for Organic Photonics & Electronics, The University of Queensland, Brisbane, Queensland 4072, Australia. p.burn2@uq.edu.au p.shaw3@uq.edu.au.
authors.forename: M A
authors.initials: MA
authors.lastname: Ali
authors.forename: Y
authors.initials: Y
authors.lastname: Geng
authors.forename: H
authors.initials: H
authors.lastname: Cavaye
authors.forename: P L
authors.initials: PL
authors.lastname: Burn
authors.forename: I R
authors.initials: IR
authors.lastname: Gentle
authors.forename: P
authors.initials: P
authors.lastname: Meredith
authors.forename: P E
authors.initials: PE
authors.lastname: Shaw
mesh_terms: D000327:Adsorption; D050091:Dendrimers / Q000737:chemistry*; D004058:Diffusion; D053834:Explosive Agents / Q000032:analysis* / Q000737:chemistry; D005453:Fluorescence; D007700:Kinetics; D014050:Toluene / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry
chemical_list: D050091:Dendrimers; D053834:Explosive Agents; D014050:Toluene; C017572:4-nitrotoluene