SnO2 Nanostructured Thin Films for Room-Temperature Gas Sensing of Volatile Organic Compounds

• DOI: 10.1021/acsami.8b08397
• Publication Date: 2018-08-07T23:17:52Z
• Authors: Kelsey Haddad; Ahmed Abokifa; Shalinee Kavadiya; Byeongdu Lee; Sriya Banerjee; Baranidharan Raman; Parag Banerjee; Cynthia Lo; John Fortner; Pratim Biswas
• Keywords: Volatile organic compound; Deposition

We demonstrated room-temperature gas sensing of volatile organic compounds (VOCs) using SnO2 nanostructured thin films grown via the aerosol chemical vapor deposition process at temperatures ranging from 450 to 600 °C. investigated film's response presence three classes VOCs: apolar, monopolar, and biopolar. The synthesis was optimized, with most robust observed for 550 °C as compared other temperatures. role film morphology, exposed surface planes, oxygen defects were explored experimental techniques theoretical calculations improve understanding mechanism, which is proposed be through direct adsorption VOCs on sensor surface. Overall, improved material characteristics that enable gained in this work will beneficial design application metal oxide sensors room temperature.