Kinetics of adsorption-desorption processes of alcohol molecules in porous silicon Bragg mirror

被引：19
|
作者：
Ivanov, I. I. [1 ]
Skryshevsky, V. A. [1 ]
Serdiuk, T. [1 ]
Lysenko, V. [2 ]
机构：
[1] Kyiv Natl Taras Shevchenko Univ, Inst High Technol, UA-01033 Kiev, Ukraine
[2] INSA Lyon, CNRS UMR 5270, INL, F-69621 Villeurbanne, France
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 174卷
关键词：
Gas sensor; Optical sensor; Porous silicon; Bragg mirror; Adsorption-desorption kinetic; SiC; Nano-particles; OPTICAL-PROPERTIES; PHOTOLUMINESCENCE; GAS; MICROCAVITIES;
D O I：
10.1016/j.snb.2012.02.056
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A porous silicon Bragg reflector was applied to analyze the time dependent parameters that characterize the ethanol adsorption and desorption processes. Time-dependent parameters - amplitude, FWHM and Bragg peak at the measurement of reflectivity show complex behavior at adsorption/desorption for pure ethanol and colloidal solution with SiC nanoparticles. Models of equivalent Bragg mirror with partially pores filling were considered. Effects of pores filling on spectral properties of Bragg mirror was simulated by matrix method and compare with experimental data. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：521 / 526
页数：6
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