Effects of nanocrystal shape on the surface charge density of ionic colloidal nanoparticles

Autor: Paulo C. Morais, Fanyao Qu, R.H. Oliveira
Rok vydání: 2004
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. :1668-1669
ISSN: 0304-8853
Popis: Both size and shape of nanocrystals play an important role in determination of the energy spectrum, the surface charge density, and the stability of semiconductor-based ionic colloids. When the nanocrystal size decreases, an improvement in colloidal stability is expected due to the increase of the surface charge density. A relatively small deviation from spherical-towards ellipsoidal shape may improve even further colloid stability, due to quantum confinement effects.
Databáze: OpenAIRE