Site-Selective Self Assembly of Colloidal Photonic Crystals

被引：23

作者：

Arpiainen, Sanna ^{[1
]}

Jonsson, Fredrik ^{[2
]}

Dekker, James R. ^{[3
]}

Kocher, Gudrun ^{[2
]}

Khunsin, Worawut ^{[2
]}

Torres, Clivia M. Sotomayor ^{[2
]}

Ahopelto, Jouni ^{[1
]}

机构：

[1] VTT Micro & Nanoelect, FIN-02044 Espoo, Finland

[2] Univ Coll Cork, Tyndall Natl Inst, Cork, Ireland

[3] VTT Ctr MEMS & Heterogeneous Integrat, FIN-02044 Espoo, Finland

来源：

ADVANCED FUNCTIONAL MATERIALS | 2009年 / 19卷 / 08期

基金：

爱尔兰科学基金会; 芬兰科学院;

关键词：

SILICON-ON-INSULATOR; PLANAR DEFECTS; ELECTROPHORETIC DEPOSITION; PATTERNED SURFACES; GROWTH; CRYSTALLIZATION; MICROSPHERES; MULTILAYERS; FABRICATION; THICKNESS;

D O I：

10.1002/adfm.200801612

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A scalable method for site-selective, directed self-assembly of colloidal opals on topologically patterned substrates is presented. Here, such substrate contains optical waveguides which couple to the colloidal crystal. The site- selectivity is achieved by a capillary network, whereas the self-assembly process is based on controlled solvent evaporation. In the deposition process, a suspension of colloidal microspheres is dispensed on the substrate and driven into the desired crystallization sites by capillary flow. The method has been applied to realize colloidal crystals from monodisperse dielectric spheres with diameters ranging from 290 to 890 nm. The method can be implemented in an industrial wafer-scale process.

引用

页码：1247 / 1253

页数：7

共 36 条

[31] Building tunable planar defects into photonic crystals using polyelectrolyte multilayers [J].