| Title: | Field effect transistors based on polycyclic aromatic hydrocarbons for the detection and classification of volatile organic compounds |
| Author(s): | Bayn A; Feng X; Mullen K; Haick H; |
| Address: | "The Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 3200003, Israel" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "We show that polycyclic aromatic hydrocarbon (PAH) based field effect transistor (FET) arrays can serve as excellent chemical sensors for the detection of volatile organic compounds (VOCs) under confounding humidity conditions. Using these sensors, w/o complementary pattern recognition methods, we study the ability of PAH-FET(s) to: (i) discriminate between aromatic and non-aromatic VOCs; (ii) distinguish polar and non-polar non-aromatic compounds; and to (iii) identify specific VOCs within the subgroups (i.e., aromatic compounds, polar non-aromatic compounds, non-polar non-aromatic compounds). We further study the effect of water vapor on the sensor array's discriminative ability and derive patterns that are stable when exposed to different constant values of background humidity. Patterns based on different independent electronic features from an array of PAH-FETs may bring us one step closer to creating a unique fingerprint for individual VOCs in real-world applications in atmospheres with varying levels of humidity" |
| Keywords: | Air Pollutants/*chemistry Environmental Monitoring/instrumentation/*methods Polycyclic Aromatic Hydrocarbons/*chemistry Volatile Organic Compounds/*chemistry; |
| Notes: | "MedlineBayn, Alona Feng, Xinliang Mullen, Klaus Haick, Hossam eng Evaluation Study Research Support, Non-U.S. Gov't 2013/03/20 ACS Appl Mater Interfaces. 2013 Apr 24; 5(8):3431-40. doi: 10.1021/am4005144. Epub 2013 Apr 4" |
