Title :
Application of principal component analysis to the conductometric Cr1−xFexNbO4 (x = 0, 0.5, 1.0) thick films gas sensors
Author :
Murthy, A. Sree Rama ; Gnanasekar, K.I. ; Jayaraman, V. ; Umarji, A.M.
Author_Institution :
Mater. Chem. Div., Indira Gandhi Centre for Atomic Res., Kalpakkam, India
Abstract :
The gas sensing characteristics of Cr1-xFexNbO4 (x = 0.0, 0.5, 1.0) towards different organic analytes and hydrogen were investigated at different operating temperatures. The slope of the retrace transient, a representative feature for desorption kinetics was considered for data exploration. 11 sensors with 12 samples were tested and the data obtained was processed using principal component analysis (PCA). The scores plot and loadings plot showed the possible differentiation of the cross sensitive analytes and redundancy of the sensor behaviour towards these analytes respectively.
Keywords :
chromium compounds; gas sensors; hydrogen; iron compounds; organic compounds; principal component analysis; thin films; Cr1-xFexNbO4; H2; conductometric thick films; cross sensitive analytes; desorption kinetics; gas sensors; organic analytes; principal component analysis; retrace transient; sensor behaviour redundancy; Chemical sensors; Principal component analysis; Sensor arrays; Temperature sensors; Thick films; Gas sensor; Principal Component Analysis; n — type and p — type response; sensor array;
Conference_Titel :
Physics and Technology of Sensors (ISPTS), 2015 2nd International Symposium on
Conference_Location :
Pune
DOI :
10.1109/ISPTS.2015.7220085
