Optical properties of hollow polymer microspheres loaded with semiconductor quantum dots

Author

Savateeva, Diana ; Melnikau, Dzmitry ; McCarthy, J.E. ; Purcell-Milton, F. ; Gerard, V. ; McCloskey, D. ; Donegan, John ; Gun´ko, Yurii K. ; Chugunov, S. ; Rusakov, K.I. ; Rakovich, Yury P.

Author_Institution

Centro de Fis. de Mater., UPV, Donostia-San Sebastian, Spain

fYear

2014

fDate

6-10 July 2014

Firstpage

1

Lastpage

3

Abstract

In this paper, we report on fabrication and optical properties of hollow poly(methyl methacrylate) (PMMA) microspheres loaded with CdSe/CdS core-shell quantum dots. The PMMA microspheres were fabricated using a spray-drying method and investigated using scanning electron microscopy, confocal microscopy, and fluorescent lifetime imaging microscopy. Micro-photoluminescence studies of individual microspheres were also performed revealing pronounced whispering gallery modes. This result demonstrates the high optical quality of the hollow microspheres and their potential application as optical microresonators.

Keywords

II-VI semiconductors; cadmium compounds; filled polymers; fluorescence; microcavities; micromechanical resonators; optical polymers; optical resonators; photoluminescence; polymer blends; scanning electron microscopy; semiconductor quantum dots; whispering gallery modes; wide band gap semiconductors; CdSe-CdS; CdSe-CdS core-shell quantum dots; PMMA microspheres; confocal microscopy; fluorescent lifetime imaging microscopy; hollow poly(methyl methacrylate); hollow polymer microspheres; microphotoluminescence; optical microresonators; optical quality; scanning electron microscopy; semiconductor quantum dots; spray drying method; whispering gallery modes; Integrated optics; Microcavities; Optical device fabrication; Optical filters; Optical imaging; Optical refraction; Optical variables control; confocal microscopy; microcavities; microspheres; quantum dots; whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2014 16th International Conference on

Conference_Location

Graz

Type

conf

DOI

10.1109/ICTON.2014.6876653

Filename

6876653