Photostability of luminescent water-soluble cadmium selenide nanocrystals with chemical surface modification

Autor: M. V. Artem’ev, A. A. Lyutich, Sergey V. Gaponenko, L. I. Gurinovich
Rok vydání: 2006
Předmět:
Zdroj: Journal of Applied Spectroscopy. 73:572-575
ISSN: 1573-8647
0021-9037
DOI: 10.1007/s10812-006-0120-2
Popis: We have developed a method for solubilization of hydrophobic CdSe/ZnS nanocrystals of the core/shell type, obtained by high-temperature synthesis in coordinating organic solvents. The method is based on chemical modification of the surface of the nanocrystals with hydrophilic organic mercapto compounds. We have observed that long-chain mercaptoundecanoic acid molecules effectively protect the surface of CdSe/ZnS nanocrystals in water, increasing (compared with short-chain molecules) the photostability of the nanocrystals.
Databáze: OpenAIRE