title: Luminescence enhancement of pyrene/dispersant nanoarrays driven by the nanoscale spatial effect on mixing.
abstract: This work presents a simple method to generate ordered chromophore/dispersant nanoarrays through a pore-filling process for a nanoporous polymer template to enhance chromophore luminescence. Fluorescence results combining with the morphological evolution examined by scanning probe microscopy reveal that the enhanced luminescence intensity reaches the maximum intensity as the nanopores of the template are completely filled by the chromophore/dispersant mixture. The variation is attributed to nanoscale spatial effect on the enhanced mixing efficiency of chromophore and dispersant, that is, the alleviation of self-quenching problem, as evidenced by the results of attenuated total reflection Fourier transform IR spectroscopy combining with grazing incident wide-angle X-ray diffraction. The enhanced luminescence of the chromophore/dispersant nanoarrays driven by the nanoscale spatial effect is highly promising for use in designing luminescent nanodevices.
authors.affiliation: Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
authors.forename: Kuan-Hsin
authors.initials: KH
authors.lastname: Lo
authors.forename: Ming-Chia
authors.initials: MC
authors.lastname: Li
authors.forename: Rong-Ming
authors.initials: RM
authors.lastname: Ho
authors.forename: Yuan-Chun
authors.initials: YC
authors.lastname: Zhao
authors.forename: Florian
authors.initials: F
authors.lastname: Massuyeau
authors.forename: Wei-Tsung
authors.initials: WT
authors.lastname: Chuang
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Duvail
authors.forename: Serge
authors.initials: S
authors.lastname: Lefrant
authors.forename: Chain-Shu
authors.initials: CS
authors.lastname: Hsu
mesh_terms: D049449:Luminescence; D008163:Luminescent Measurements; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D011721:Pyrenes / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011108:Polymers; D011721:Pyrenes; C030984:pyrene