High quality photonic opaline structure in one night and their optical reflectance

被引：12

作者：

Piret, F. ^{[1
]}

Su, B. -L. ^{[1
]}

机构：

[1] Fac Univ Notre Dame Paix, Lab Inorgan Mat Chem CMI, B-5000 Namur, Belgium

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 454卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2008.02.032

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：

A high quality silica opal with large crack free areas was synthesized by a quick vertical convection self-assembly method and the optical properties have been studied and confirmed the high quality of these opaline structures. The thermogravimetric analysis of the calcination process of silica spheres revealed that the optimal calcination temperature of deposited colloidal crystal is around 240 degrees C, slightly higher than the dehydroxylation temperature of silanols. An improvement in mechanical strength of the opaline photonic crystal structure was obtained. The whole process has been optimized such that synthesis is feasible in only one night without any intervention, opening the possible production on an industrial scale. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：318 / 322

页数：5