Synthesis of monodisperse ellipsoids with tunable aspect ratios

被引：16
|
作者：
Ding, Tao [1 ,2 ,3 ]
Liu, Zhanfang [1 ]
Song, Kai [1 ,2 ]
Tung, Chen-Ho [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing 100190, Peoples R China
[2] Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2009年 / 336卷 / 1-3期
关键词：
Monodisperse; Ellipsoid; Aspect ratio; Photonic crystal; COLLOIDAL CRYSTALS; PHOTONIC CRYSTALS; PARTICLES; SILICA; FABRICATION; SPHERES; ARRAYS; IRON; GAP;
D O I：
10.1016/j.colsurfa.2008.11.007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Monodisperse ellipsoids were synthesized by continuous coating of silica on hematite spindle cores. Spindle cores with decreasing aspect ratio were obtained by decreasing the molar ratio of Fe3+ and H2PO4-. Using PVP molecules as the surface stabilizer for silica coating, the aspect ratio of the ellipsoids can also be tuned by altering the amount of added TEOS. These monodisperse ellipsoids with well controlled sizes and aspect ratios can be regarded as the potential building blocks for self-assembly. Crown Copyright (C) 2008 Published by Elsevier B. V. All rights reserved.
引用
收藏
页码：29 / 34
页数：6
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