Control over the Structural and Optical Features of Nanoparticle-Based One-Dimensional Photonic Crystals

被引：30

作者：

Calvo, Mauricio E. ^{[1
]}

Sanchez-Sobrado, Olalla ^{[1
]}

Colodrero, Silvia ^{[1
]}

Miguez, Hernan ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat, Seville 41092, Spain

来源：

LANGMUIR | 2009年 / 25卷 / 04期

关键词：

THIN-FILMS; SPIN; MULTILAYERS;

D O I：

10.1021/la8030057

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein we present a detailed analysis of the effect of the spin-coating protocol over the optical properties of nanoparticle-based one-dimensional photonic crystals. Based on these results, we provide a reliable synthetic route to attain high-quality porous multilayers in which the effect of imperfections is minimized and whose Bragg diffraction can be precisely tuned over the entire visible and near-infrared spectrum. We present a systematic study of the effect of the acceleration ramp and final rotation speed over the structural and optical quality of these materials. This allows us to relate the structural variations observed with the different relative importance of fluid flow and solvent evaporation on the thinning of each layer in the stack for the different deposition conditions employed.

引用

页码：2443 / 2448

页数：6

共 20 条

[11] The effect of radial position and spin speed on striation spacing in spin on glass coatings [J].