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

被引：4
|
作者：
Qu, FY
Oliveira, RH
Morais, PC
机构：
[1] Univ Fed Uberlandia, Fac Fis, BR-38400902 Uberlandia, MG, Brazil
[2] Univ Brasilia, Inst Fis Nucl Fis Aplicada, BR-70919970 Brasilia, DF, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
ionic colloid; charge density; shape-effects; colloidal stability;
D O I：
10.1016/j.jmmm.2003.12.1076
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1668 / 1669
页数：2
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