Weiyong Mao et al 2007 Nanotechnology 18 485611 doi:10.1088/0957-4484/18/48/485611
Weiyong Mao1,2, Jia Guo1,2, Wuli Yang1,2,5, Changchun Wang1,2, Jia He3,4 and Jiyao Chen3,4
Show affiliationsWe present a facile one-pot method to fabricate water-dispersed near-infrared-emitting (650–800 nm) CdTeS alloyed quantum dots with high photoluminescence quantum yields (PL QYs). Due to the hydrolysis of thiol ligands, the sulfur was incorporated into the CdTe nanocrystals, forming CdTeS alloyed QDs. The effects of the type of thiol ligands, ligand-to-Cd molar ratio, and precursor concentration on the QDs were investigated, and thus high-quality water-dispersed CdTeS alloyed QDs (PL QYs 68%) were prepared with a high efficiency via the hydrothermal method. Water-dispersed CdTeS alloyed QDs with excellent emissions in the near-IR spectrum window have great potential in biological and medical applications especially in in vivo imaging.
Issue 48 (5 December 2007)
Received 11 July 2007, in final form 7 September 2007
Published 1 November 2007
Weiyong Mao et al 2007 Nanotechnology 18 485611
B Jakoby 2009 Meas. Sci. Technol. 20 124003
S Novotny et al 2009 J. Phys.: Conf. Ser. 192 012024
M J Khoshgoftar et al 2009 Smart Mater. Struct. 18 115007
Sebastian Strobel et al 2007 Nanotechnology 18 295201
Constantinos Skordis 2009 Class. Quantum Grav. 26 143001
T Yamanaka et al 2009 J. Phys.: Conf. Ser. 190 012149
M I Bichurin et al 2009 J. Phys. D: Appl. Phys. 42 215001
Dmitry S Koktysh et al 2007 Nanotechnology 18 495607
Lubna R Shah et al 2009 J. Phys.: Condens. Matter 21 486004