Room temperature gas sensitivity of ultrathin SnO2 films prepared from Langmuir-Blodgett film precursors

• DOI: 10.1063/1.2336725
• Publication Date: 2006-08-17T22:05:57Z
• Authors: Sipra Choudhury; C. A. Betty; K. G. Girija; S. K. Kulshreshtha
• Keywords: Ammonia gas

The authors report the room temperature gas sensitivity of ultrathin SnO2 films prepared by thermal decomposition multilayer Langmuir-Blodgett (LB) films. films, which are characterized various spectroscopic techniques and electrical measurements, have been shown to sense ammonia at with fast response recovery. presence a large number surface states in film is responsible for sensitivity. Present results demonstrate potential LB technique fabricate high quality oxide useful sensor applications.