Highly fluorescent CdTe nanocrystals were synthesized in aqueous solution, and then processible CdTe nanocrystal-polymer composites were fabricated by coating the aqueous nanocrystals with copolymers of styrene and oc...Highly fluorescent CdTe nanocrystals were synthesized in aqueous solution, and then processible CdTe nanocrystal-polymer composites were fabricated by coating the aqueous nanocrystals with copolymers of styrene and octadecyl-p-vinyl-benzyldimethylammonium chloride (SOV- DAC) directly. A dichloromethane solution of CdTe nano- crystal-polymer composites was dispersed in the aqueous solution of poly (vinyl alcohol) (PVA) generating highly fluo- rescent microspheres. Experimental parameters such as the concentration of nanocrystal-polymer composites, the con- centration of PVA, and stirring speed which had important effect on the preparation of the microspheres were investi- gated in detail with fluorescent microscope characterization.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.200340062)the Special Funds for Major State Basic Research Projects(Grant No.2002CB613401).
文摘Highly fluorescent CdTe nanocrystals were synthesized in aqueous solution, and then processible CdTe nanocrystal-polymer composites were fabricated by coating the aqueous nanocrystals with copolymers of styrene and octadecyl-p-vinyl-benzyldimethylammonium chloride (SOV- DAC) directly. A dichloromethane solution of CdTe nano- crystal-polymer composites was dispersed in the aqueous solution of poly (vinyl alcohol) (PVA) generating highly fluo- rescent microspheres. Experimental parameters such as the concentration of nanocrystal-polymer composites, the con- centration of PVA, and stirring speed which had important effect on the preparation of the microspheres were investi- gated in detail with fluorescent microscope characterization.
