A version of Stober synthesis enabling the facile prediction of silica nanospheres size for the fabrication of opal photonic crystals

被引：43

作者：

Razo, Diego Adolfo Santamaria ^{[1
]}

Pallavidino, Luca ^{[1
]}

Garrone, Edoardo ^{[1
]}

Geobaldo, Francesco ^{[1
]}

Descrovi, Emiliano ^{[2
]}

Chiodoni, Angelica ^{[2
]}

Giorgis, Fabrizio ^{[2
]}

机构：

[1] Politecn Torino, Dept Mat Sci & Chem Engn, I-10129 Turin, Italy

[2] Politecn Torino, Mat & Microsyst Lab, Lab Phys Dept, I-10129 Turin, Italy

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2008年 / 10卷 / 07期

关键词：

3-D photonic crystals; synthetic opals; Bragg reflection peak; monodispersed silica nanospheres; self assembly; colloids;

D O I：

10.1007/s11051-008-9373-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A sol-gel synthesis procedure based on the method proposed by Stober et al. (J Colloid Interface Sci 26: 302-315, 1968) has been adopted for the one-step preparation of mono-dispersed silica nanospheres. An excellent control of the particle diameter over a wide range is obtained by varying the amount of silicon alkoxide only, while the concentration of all other components is kept fixed: this allows the fabrication of artificial opals with a finely tuned and precisely predictable lattice parameter.

引用

页码：1225 / 1229

页数：5

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