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Title: Plasmonic nanopatch array with integrated metal–organic framework for enhanced infrared absorption gas sensing

In this letter, we present a nanophotonic device consisting of plasmonic nanopatch array (NPA) with integrated metal–organic framework (MOF) for enhanced infrared absorption gas sensing. By designing a gold NPA on a sapphire substrate, we are able to achieve enhanced optical field that spatially overlaps with the MOF layer, which can adsorb carbon dioxide (CO 2) with high capacity. Additionally, experimental results show that this hybrid plasmonic–MOF device can effectively increase the infrared absorption path of on-chip gas sensors by more than 1100-fold. Lastly, the demonstration of infrared absorption spectroscopy of CO 2 using the hybrid plasmonic–MOF device proves a promising strategy for future on-chip gas sensing with ultra-compact size.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [3] ;  [1]
  1. Oregon State University, Corvallis, OR (United States). School of Electrical Engineering and Computer Science
  2. Oregon State University, Corvallis, OR (United States). School of Chemical, Biological and Environmental Engineering; National Energy Technology Lab. (NETL), Pittsburgh, PA (United States); AECOM, Pittsburgh, PA (United States)
  3. Oregon State University, Corvallis, OR (United States). School of Chemical, Biological and Environmental Engineering
  4. National Energy Technology Lab. (NETL), Pittsburgh, PA (United States); Carnegie Mellon University, Pittsburgh, PA (United States). Materials Science and Engineering, Department
Publication Date:
Grant/Contract Number:
1449383
Type:
Accepted Manuscript
Journal Name:
Nanotechnology
Additional Journal Information:
Journal Volume: 28; Journal Issue: 26; Journal ID: ISSN 0957-4484
Publisher:
IOP Publishing
Research Org:
National Energy Technology Laboratory (NETL), Pittsburgh, PA (United States). In house research
Sponsoring Org:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; plasmonics; gas sensing; metal–organic framework; infrared absorption
OSTI Identifier:
1393389