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Title: Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing

Abstract

Surface-enhanced infrared absorption (SEIRA) is capable of identifying molecular fingerprints by resonant detection of infrared vibrational modes through the coupling with plasmonic modes of metallic nanostructures. However, SEIRA for on-chip gas sensing is still not very successful due to the intrinsically weak light-matter interaction between photons and gas molecules and the technical challenges in accumulating sufficient gas species in the vicinity of the spatially localized enhanced electric field, namely, the “hot-spots”, generated through plasmonics. In this paper, we present a suspended silicon nitride (Si3N4) nanomembrane device by integrating plasmonic nanopatch gold antennas with metal–organic framework (MOF), which can largely adsorb carbon dioxide (CO2) through its nanoporous structure. Unlike conventional SEIRA sensing relying on highly localized hot-spots of plasmonic nanoantennas or nanoparticles, the device reported in this article engineered the coupled surface plasmon polaritons in the metal–Si3N4 and metal–MOF interfaces to achieve strong optical field enhancement across the entire MOF film. Lastly, we successfully demonstrated on-chip gas sensing of CO2 with more than 1800× enhancement factors by combining the concentration effect from the 2.7 μm MOF thin film and the optical field enhancement of the plasmonic nanopatch antennas.

Authors:
 [1];  [2];  [1];  [3];  [4];  [2]; ORCiD logo [1]
  1. Oregon State Univ., Corvallis, OR (United States). School of Electrical Engineering and Computer Science
  2. Oregon State Univ., Corvallis, OR (United States). School of Chemical, Biological and Environmental Engineering
  3. National Energy Technology Lab. (NETL), Pittsburgh, PA (United States); AECOM, South Park, PA (United States)
  4. National Energy Technology Lab. (NETL), Pittsburgh, PA (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States). Materials Science and Engineering Dept.
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF)
OSTI Identifier:
1461083
Grant/Contract Number:  
1449383; 1707506
Resource Type:
Accepted Manuscript
Journal Name:
ACS Sensors
Additional Journal Information:
Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2379-3694
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; gas sensor; metal−organic framework; nanomembrane device; plasmonic nanostructure; surface-enhanced infrared absorption

Citation Formats

Chong, Xinyuan, Zhang, Yujing, Li, Erwen, Kim, Ki-Joong, Ohodnicki, Paul R., Chang, Chih-hung, and Wang, Alan X. Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing. United States: N. p., 2017. Web. doi:10.1021/acssensors.7b00891.
Chong, Xinyuan, Zhang, Yujing, Li, Erwen, Kim, Ki-Joong, Ohodnicki, Paul R., Chang, Chih-hung, & Wang, Alan X. Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing. United States. doi:10.1021/acssensors.7b00891.
Chong, Xinyuan, Zhang, Yujing, Li, Erwen, Kim, Ki-Joong, Ohodnicki, Paul R., Chang, Chih-hung, and Wang, Alan X. Tue . "Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing". United States. doi:10.1021/acssensors.7b00891. https://www.osti.gov/servlets/purl/1461083.
@article{osti_1461083,
title = {Surface-Enhanced Infrared Absorption: Pushing the Frontier for On-Chip Gas Sensing},
author = {Chong, Xinyuan and Zhang, Yujing and Li, Erwen and Kim, Ki-Joong and Ohodnicki, Paul R. and Chang, Chih-hung and Wang, Alan X.},
abstractNote = {Surface-enhanced infrared absorption (SEIRA) is capable of identifying molecular fingerprints by resonant detection of infrared vibrational modes through the coupling with plasmonic modes of metallic nanostructures. However, SEIRA for on-chip gas sensing is still not very successful due to the intrinsically weak light-matter interaction between photons and gas molecules and the technical challenges in accumulating sufficient gas species in the vicinity of the spatially localized enhanced electric field, namely, the “hot-spots”, generated through plasmonics. In this paper, we present a suspended silicon nitride (Si3N4) nanomembrane device by integrating plasmonic nanopatch gold antennas with metal–organic framework (MOF), which can largely adsorb carbon dioxide (CO2) through its nanoporous structure. Unlike conventional SEIRA sensing relying on highly localized hot-spots of plasmonic nanoantennas or nanoparticles, the device reported in this article engineered the coupled surface plasmon polaritons in the metal–Si3N4 and metal–MOF interfaces to achieve strong optical field enhancement across the entire MOF film. Lastly, we successfully demonstrated on-chip gas sensing of CO2 with more than 1800× enhancement factors by combining the concentration effect from the 2.7 μm MOF thin film and the optical field enhancement of the plasmonic nanopatch antennas.},
doi = {10.1021/acssensors.7b00891},
journal = {ACS Sensors},
number = 1,
volume = 3,
place = {United States},
year = {2017},
month = {12}
}

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Figures / Tables:

Figure 1 Figure 1: Schematic of (a) top and (b) cross-section of the device designed in this study.

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