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Relative humidity and alcohol sensors based on mesoporous silica thin films synthesised from block copolymers

被引：43
作者：
Bearzotti, A
Bertolo, JM
Innocenzi, P
Falcaro, P
Traversa, E
机构：
[1] Univ Padua, Dipartimento Ingn Meccan, Settore Mat, I-35131 Padua, Italy
[2] CNR, IMM, Area Ric Roma Tor Vergata, I-00133 Rome, Italy
[3] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, Rome, Italy
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 95卷 / 1-3期
关键词：
mesoporous; sol-gel; humidity sensors; alcohol sensors; self-assembling;
D O I：
10.1016/S0925-4005(03)00416-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The response of a new type of based humidity and alcohol vapours sensor has been investigated by means of chemical characterisation and electric measurements. The silica thin film mesoporous sensors were manufactured by dip-coating on substrates with interdigitated electrodes. Large current intensity variation (more than four magnitude orders) as a function of the relative humidity or alcohol presence in the environment has been observed with a more sensitive region for low concentrations. The performance of the sensors has been found to be dependent on the film preparation parameters. (C) 2003 Elsevier B.V. All rights reserved.
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收藏
页码：107 / 110
页数：4
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