| Title: | Mid-Infrared Chalcogenide Waveguides for Real-Time and Nondestructive Volatile Organic Compound Detection |
| Author(s): | Jin T; Zhou J; Lin HG; Lin PT; |
| Address: | "Center for Nanoscale Systems , Harvard University , 11 Oxford Street , Cambridge , Massachusetts 02138 , United States" |
| DOI: | 10.1021/acs.analchem.8b03004 |
| ISSN/ISBN: | 1520-6882 (Electronic) 0003-2700 (Linking) |
| Abstract: | A mid-infrared (mid-IR) sensor chip was demonstrated for volatile organic compound (VOC) detection. The sensor consisted of As(2)Se(3) optical waveguides built by microelectronic fabrication processes. The VOC sensing performance was characterized by measuring acetone and ethanol vapors at their characteristic C-H absorption from lambda = 3.40 to 3.50 mum. Continuous VOC detection with <5 s response time was achieved by measuring the intensity attenuation of the waveguide mode. The miniaturized noninvasive VOC sensor can be applied to breath analysis and environmental toxin monitoring |
| Keywords: | "Acetone/analysis Arsenicals/*chemistry Ethanol/analysis Selenium Compounds/*chemistry Spectrophotometry, Infrared/instrumentation/methods Volatile Organic Compounds/*analysis;" |
| Notes: | "MedlineJin, Tiening Zhou, Junchao Lin, Hao-Yu Greg Lin, Pao Tai eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2018/12/06 Anal Chem. 2019 Jan 2; 91(1):817-822. doi: 10.1021/acs.analchem.8b03004. Epub 2018 Dec 18" |
