Tunable Bragg stacks from sol-gel derived Ta2O5 and MEL zeolite films

被引：12
|
作者：
Gospodinov, B. [1 ]
Dikova, J. [1 ]
Mintova, S. [2 ]
Babeva, T. [1 ]
机构：
[1] Bulgarian Acad Sci, Inst Opt Mat & Technol Acad J Malinowski, Acad G Bonchev Str,Bl 109, BU-1113 Sofia, Bulgaria
[2] Univ Caen, Lab Catalyse Spectrochimie, F-14050 Caen, France
来源：
17TH INTERNATIONAL SCHOOL ON CONDENSED MATTER PHYSICS (ISCMP): OPEN PROBLEMS IN CONDENSED MATTER PHYSICS, BIOMEDICAL PHYSICS AND THEIR APPLICATIONS | 2012年 / 398卷
关键词：
OPTICAL-PROPERTIES; COATINGS; CHEMISTRY;
D O I：
10.1088/1742-6596/398/1/012026
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper we investigated sol-gel derived Ta2O5 and nanosized MEL zeolite films obtained by spin coating of Tantalum sol and colloidal zeolite solution, respectively. Refractive index and thickness of the films were determined using non-linear curve fitting of measured reflectance spectra. The influence of the post deposition annealing on the optical properties and thickness of the films was studied. Besides tunable Bragg stacks were designed and prepared by layer-by-layer deposition of Ta2O5 and MEL suspensions with quarter-wave thicknesses. The influence of water, acetone and methanol on the optical behavior of Bragg stacks was discussed.
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页数：6
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