Sensor properties of lead phthalocyanine in a surface acoustic wave system

被引：19

作者：

Jakubik, W ^{[1
]}

Urbanczyk, M ^{[1
]}

Opilski, A ^{[1
]}

机构：

[1] Silesian Tech Univ, Inst Phys, PL-44100 Gliwice, Poland

来源：

ULTRASONICS | 2001年 / 39卷 / 03期

关键词：

surface acoustic wave; sensor; lead phthalocyanine;

D O I：

10.1016/S0041-624X(00)00061-5

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The paper presents experimental results of the interaction of thin layers (83 and 310 nm) of lead phthalocyanine (PbPc) with trace amounts of toxic gas NO2 in a system with an acoustic surface wave on a LiNbO3 Y-Z substrate. PbPc films were prepared according to the usual vacuum evaporation method. Measurements of the sensor properties rely on changes in the differential frequency, Deltaf, of the dual-delay line configuration, in one of which the investigated PbPc layer has been placed. Special stress has been put on the temperature dependence of the reversibility in the medium range, i.e. between 27 degreesC and 95 degreesC. Besides, one simple method for thin PbPc film regeneration in a low NO2 concentration range has been presented. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：227 / 232

页数：6

共 12 条

[1] LEAD PHTHALOCYANINE THIN-FILMS FOR NO2 SENSORS [J].