Ternary inverse opal system for convenient and reversible photonic bandgap tuning

被引：35

作者：

Liu, Zhan-Fang ^{[1
,2
]}

Ding, Tao ^{[1
]}

Zhang, Guo ^{[2
]}

Song, Kai ^{[1
,3
]}

Clays, Koen ^{[4
]}

Tung, Chen-Ho ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Photochem, Inst Chem, Beijing 100080, Peoples R China

[2] Jilin Univ, Dept Mat Sci & Engn, Changchun 130012, Peoples R China

[3] Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

[4] Univ Louvain, Dept Chem, BE-3001 Louvain, Belgium

来源：

LANGMUIR | 2008年 / 24卷 / 18期

关键词：

D O I：

10.1021/la801137p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A ternary system, consisting of air, an air-core/dense-silica-shell core-shell particle, and liquids has been used to fabricate an inverse opal structure with low fill factor, high refractive index contrast, and reversible tuning capabilities of the bandgap spectral position. The original close-packed opal structure is a ternary self-assembled photonic crystal from monodisperse and spherical polystyrene-core/silica-shell colloidal particles with air as the void material. Calcination removed the polystyrene and converted the core-shell particles to hollow spheres with a dense shell. In a final step, liquid is infiltrated only in the voids between the hollow spheres, but does not penetrate in the shell. This allows facile and reversible tuning of the bandgap, properties in an inverse opal structure.

引用

页码：10519 / 10523

页数：5

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