Alcohol vapor sensory properties of nanostructured conjugated polymers

被引：34
作者：
Bearzotti, Andrea [1 ]
Macagnano, Antonella [1 ]
Pantalei, Simone [1 ]
Zampetti, Emiliano [1 ]
Venditti, Iole
Fratoddi, Ilaria [2 ]
Russo, Maria Vittoria [2 ]
机构：
[1] IMM CNR, Res Area Tor Vergata, I-00133 Rome, Italy
[2] Univ Roma La Sapienza, Dept Chem, I-00189 Rome, Italy
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 47期
关键词：
D O I：
10.1088/0953-8984/20/47/474207
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The response to relative humidity (RH) and alcohol vapors of resistive-type sensors based on nanobeads of conjugated polymers, namely polyphenylacetylene (PPA) and copolymer poly[phenylacetylene-(co-2-hydroxyethyl methacrylate)] (P(PA/HEMA)), were investigated. Sensors based on ordered arrays of these nanostructured polymeric materials showed stable and reproducible current intensity variations in the range 10-90% of relative humidity at room temperature. Both polymers also showed sensitivity to aliphatic chain primary alcohols, and a fine tuning of the sensor response was obtained by varying the chain length of the alcohol in relation to the polarity. The nanostructured feature of polymeric-based membranes seems to have an effect on the sensing response and an enhancement of the sensitivity was observed for the response to water and alcohol vapor variations with respect to previous studies based on amorphous polyphenylacetylene. High stability of the polymeric nanostructured membranes was detected with no aging after two weeks in continuum stressing measurement conditions.
引用
收藏
页数：6
相关论文
共 20 条
  • [1] Gas sensors based on conducting polymers
    Bai, Hua
    Shi, Gaoquan
    [J]. SENSORS, 2007, 7 (03) : 267 - 307
  • [2] Investigations on the response to humidity of an interdigitated electrode structure coated with iodine doped polyphenylacetylene
    Bearzotti, A
    Foglietti, V
    Polzonetti, G
    Iucci, G
    Furlani, A
    Russo, MV
    [J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1996, 40 (01): : 1 - 4
  • [3] BOSC S, 2005, SENSOR ACTUAT B-CHEM, V105, P346
  • [4] Ag dopedWO3-based powder sensor for the detection of NO gas in air
    Chen, L
    Tsang, SC
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2003, 89 (1-2) : 68 - 75
  • [5] A Contribution on Some Basic Definitions of Sensors Properties
    D'Amico, Arnaldo
    Di Natale, Corrado
    [J]. IEEE SENSORS JOURNAL, 2001, 1 (03) : 183 - 190
  • [6] Patterning of conducting polymers based on a random copolymer strategy: Toward the facile fabrication of nanosensors exclusively based on polymers
    Dong, B
    Zhong, DY
    Chi, LF
    Fuchs, H
    [J]. ADVANCED MATERIALS, 2005, 17 (22) : 2736 - +
  • [7] A new highly selective H2 sensor based on TiO2/PtO-Pt dual-layer films
    Du, XY
    Wang, Y
    Mu, YY
    Gui, LL
    Wang, P
    Tang, YQ
    [J]. CHEMISTRY OF MATERIALS, 2002, 14 (09) : 3953 - 3957
  • [8] Fundamentals of solid state ionic micro gas sensors
    Dubbe, A
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2003, 88 (02): : 138 - 148
  • [9] A SELECTIVE CH4 SENSOR USING SEMICONDUCTING GA2O3 THIN-FILMS BASED ON TEMPERATURE SWITCHING OF MULTIGAS REACTIONS
    FLEISCHER, M
    MEIXNER, H
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1995, 25 (1-3) : 544 - 547
  • [10] Electrical and morphological characterization of poly (monosubstituted)acetylene based membranes: application as humidity and organic vapors sensors
    Fratoddi, I
    Altamura, P
    Bearzotti, A
    Furlani, A
    Russo, MV
    [J]. THIN SOLID FILMS, 2004, 458 (1-2) : 292 - 298
12