Title :
Light-harvesting positively-charged nanocrystals for strong energy transfer to dye molecules
Author :
Mutlugun, Evren ; Demir, Hilmi Volkan
Author_Institution :
Dept. of Phys., Bilkent Univ., Ankara
Abstract :
In this work, water-soluble positively-charged CdSe/ZnS core/shell nanocrystals were presented, serving as light harvester (donor) for strong energy transfer to rhodamine B dye molecules (acceptor) in solution. In accordance with photoluminescence (PL) characterization, the emission of rhodamine B was enhanced at the laser pump wavelength, which may open up possibilities for lasers based on dye molecules pumped at different wavelengths.
Keywords :
II-VI semiconductors; cadmium compounds; dyes; nanostructured materials; optical materials; photoluminescence; zinc compounds; CdSe-ZnS; core-shell nanocrystals; laser pump wavelength; light-harvesting positively-charged nanocrystals; photoluminescence; rhodamine B dye molecules; strong energy transfer; Energy exchange; Energy resolution; Laser excitation; Nanocrystals; Nanotechnology; Performance evaluation; Physics; Pump lasers; Steady-state; Zinc compounds;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688668
