An optical gas sensor based on polyaniline Langmuir-Blodgett films

被引:94
作者
Agbor, NE
Cresswell, JP
Petty, MC
Monkman, AP
机构
[1] UNIV DURHAM,SCH ENGN,DURHAM DH1 3LE,ENGLAND
[2] UNIV DURHAM,CTR MOL ELECT,DURHAM DH1 3LE,ENGLAND
[3] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND
关键词
gas sensor; Langmuir-Blodgett film; polyaniline; surface plasmon resonance;
D O I
10.1016/S0925-4005(97)80286-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The technique of surface plasmon resonance has been used to characterize Langmuir-Blodgett films of polyaniline. The thickness per layer obtained by curve fitting was 5.5 +/- 0.6 nm. The surface plasmon resonance curves have been shown to be influenced by both NO2 and H2S. The effects were partly reversible, with lower detection limits of about 50 vapour parts per million at room temperature. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:137 / 141
页数:5
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