| Title: | SnO(2) Nanostructured Thin Films for Room-Temperature Gas Sensing of Volatile Organic Compounds |
| Author(s): | Haddad K; Abokifa A; Kavadiya S; Lee B; Banerjee S; Raman B; Banerjee P; Lo C; Fortner J; Biswas P; |
| Address: | "X-ray Science Division, Advanced Photon Source , Argonne National Laboratory , Lemont , Illinois 60439 , United States" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "We demonstrated room-temperature gas sensing of volatile organic compounds (VOCs) using SnO(2) nanostructured thin films grown via the aerosol chemical vapor deposition process at deposition temperatures ranging from 450 to 600 degrees C. We investigated the film's sensing response to the presence of three classes of VOCs: apolar, monopolar, and biopolar. The synthesis process was optimized, with the most robust response observed for films grown at 550 degrees C as compared to other temperatures. The role of film morphology, exposed surface planes, and oxygen defects were explored using experimental techniques and theoretical calculations to improve the understanding of the room-temperature gas sensing mechanism, which is proposed to be through the direct adsorption of VOCs on the sensor surface. Overall, the improved understanding of the material characteristics that enable room-temperature sensing gained in this work will be beneficial for the design and application of metal oxide gas sensors at room temperature" |
| Keywords: | DFT calculations aerosol chemical vapor deposition metal-oxide nanostructures sensors thin films; |
| Notes: | "PubMed-not-MEDLINEHaddad, Kelsey Abokifa, Ahmed Kavadiya, Shalinee Lee, Byeongdu Banerjee, Sriya Raman, Baranidharan Banerjee, Parag Lo, Cynthia Fortner, John Biswas, Pratim eng 2018/08/08 ACS Appl Mater Interfaces. 2018 Sep 5; 10(35):29972-29981. doi: 10.1021/acsami.8b08397. Epub 2018 Aug 21" |
