Positioning of quantum dots into prestructured arrays by polymer encapsulation

PMSE 144

Yan Gao, gaoyan76@yahoo.com1, Sabrina Reischmann1, Tobias Hanke2, Rudolf Bratschitsch2, Alfred Leitenstorfer2, and Stefan Mecking, stefan.mecking@uni-konstanz.de1. (1) Department of Chemistry, University of Konstanz, Universitaetsstr. 10, 78464 Konstanz, Germany, (2) Department of Physics, University of Konstanz, Universitaetsstr. 10, 78464 Konstanz, Germany
Abstract.

The quantum dots were encapsulated in polymer nanoparticles by secondary dispersion through emulsification and solvent evaporation. Pre-structured substrates with gold holes array were prepared by nanosphere lithography and functioned as nano-antenna in detecting the optical property of single quantum dots. After appropriate chemical modification on the surfaces of the substrates, the obtained polymer encapsulated quantum dots were positioned into the ‘holes' successfully. In time-resolved observations from confocal microscopy, blinking of the photoluminescence emission is observed, indicating the individual emitters indeed being single isolated quantum dots.

 

Synthesis and Self-Assembly Approaches to Polymer-Inorganic Hybrid Nanoparticles
8:30 AM-11:50 AM, Tuesday, April 8, 2008 Hilton New Orleans Riverside -- Grand Salon 24, Oral

Division of Polymeric Materials: Science & Engineering

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008