Surface acoustic wave CO2 sensing with polymer-amino carbon nanotube composites

Author

Serban, B. ; Kumar, A. K Sarin ; Costea, S. ; Mihaila, M. ; Buiu, O. ; Brezeanu, M. ; Varachiu, N. ; Cobianu, C.

Author_Institution

Sensors Lab. Bucharest, Honeywell Romania, Bucharest

Volume

1

fYear

2008

fDate

13-15 Oct. 2008

Firstpage

73

Lastpage

76

Abstract

The synthesis of two new types of nanocomposite matrices, the first based on polyallylamine (PAA) and aminocarbon nanotubes, the second on polyethyleneimine (PEI) and aminocarbon nanotubes, are reported. The surface acoustic wave (SAW) sensors, coated with the two selected nanocomposites, showed good sensitivities when varying the CO₂ concentrations in the range (500-5000) ppm. The sensor sensitivity is larger when using polyethyleneimine aminocarbon nanotubes than in the case when only a pure polyethyleneimine layer is considered for coating.

Keywords

carbon nanotubes; gas sensors; nanocomposites; polymers; surface acoustic wave sensors; C; aminocarbon nanotubes; nanocomposite matrices; polyallylamine nanotubes; polyethyleneimine aminocarbon nanotubes; polymer-amino carbon nanotube composites; sensor sensitivity; surface acoustic wave sensing; Acoustic sensors; Acoustic waves; Carbon nanotubes; Coatings; Composite materials; Gas detectors; Organic materials; Surface acoustic wave devices; Surface acoustic waves; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2008. CAS 2008. International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-4244-2004-9

Type

conf

DOI

10.1109/SMICND.2008.4703330

Filename

4703330