Gas-Sensing by Polymer-Iron Nanocomposite Materials

Author

Tomescu, A. ; Simion, C.E. ; Alexandrescu, R. ; Morjan, I. ; Scarisoreanu, M.

Author_Institution

Nat. Inst. of Mater. Phys., Bucharest

Volume

2

fYear

2007

fDate

Oct. 15 2007-Sept. 17 2007

Firstpage

333

Lastpage

336

Abstract

Electrical properties of new polymer-iron nanocomposite materials obtained by laser pyrolysis were investigated, in order to find applications for the detection of reducing gases. The aim of this paper was to prove the necessity of complex experimental investigation in order to point out the contribution of different types of adsorption. Usually resistance measurement cannot fully describe the surface interactions. The electron affinity changes are of real interest for in-field conditions which always involve humidity of surrounding gas- atmosphere. On the other hand, the nanocomposite materials can be a solution for specific gas-sensing properties.

Keywords

adsorption; electrical resistivity; electron affinity; filled polymers; gas sensors; iron; laser materials processing; nanocomposites; nanotechnology; pyrolysis; adsorption; electrical properties; electron affinity; gas-sensing properties; laser pyrolysis; polymer-iron nanocomposite materials; resistance measurement; surface interactions; Atmosphere; Electrical resistance measurement; Electrons; Gas lasers; Gases; Humidity; Nanostructured materials; Optical materials; Polymers; Surface resistance; electron affinity; gas-sensing properties; nanocomposite; reducing gases; resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2007. CAS 2007. International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-4244-0847-4

Type

conf

DOI

10.1109/SMICND.2007.4519728

Filename

4519728