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Type: 
Journal
Description: 
Semiconductor sensors based on nanocrystalline SnO2, In2O3 and In2O3–SnO2 thin films have been investigated for detecting low concentration (2–20 ppm) of nitrogen dioxide in dry air. In this work the gas-sensitive layers were prepared by modified sol–gel methods making use of non-standard precursors and a suitable surfactant. The samples have been structurally and morphologically characterized by X-ray diffraction and SEM, respectively. Good gas-sensing responses towards NO2 have been found for all the prepared samples …
Publisher: 
Elsevier
Publication date: 
21 Oct 2005
Biblio References: 
Volume: 490 Issue: 1 Pages: 68-73
Origin: 
Thin Solid Films