DocumentCode
3452612
Title
The gas sensing properties of chloro-aluminium phthalocyanine thin films
Author
Krier, A. ; Azim-Araghi, M.E.
Author_Institution
Sch. of Phys. & Chem., Lancaster Univ., UK
fYear
1995
fDate
35040
Firstpage
42614
Lastpage
918
Abstract
The behaviour of ClAlPc thin film gas sensors is studied in the presence of NO2 and O2. The change in the dark conductivity of ClAlPc thin films on exposure to NO2 at several different temperatures is investigated. In particular, the temperature of maximum sensitivity (Tmax) and the minimum temperature for good reversibility (Tmin) of ClAlPc thin films has been determined and related to gas sensor applications. Sensitivity (s) of ClAlPc to NO2 is also measured at several different temperatures. It is found that by increasing temperature the sensitivity decreases, but reversibility is greatly enhanced
Keywords
dark conductivity; gas sensors; organic semiconductors; semiconductor thin films; sensitivity; 300 to 450 K; NO2; O2; adsorption; chloro-aluminium phthalocyanine thin films; dark conductivity; enhanced reversibility; gas sensing properties; minimum temperature for good reversibility; organic semiconductors; temperature of maximum sensitivity; thin film gas sensors;
fLanguage
English
Publisher
iet
Conference_Titel
Advances in Sensors, IEE Colloquium on
Conference_Location
London
Type
conf
DOI
10.1049/ic:19951513
Filename
495023
Link To Document