Details
| Original language | English |
|---|---|
| Article number | 2200395 |
| Number of pages | 9 |
| Journal | Advanced Materials Technologies |
| Volume | 7 |
| Issue number | 12 |
| Publication status | Published - Dec 2022 |
Abstract
An easily fabricated gas sensor based on planar polymer optical waveguides with an integrated zeolite imidazole framework-8 (ZIF-8) thin film is presented for carbon dioxide detection and sensing. The planar optical waveguides are made of polymethylmethacrylate and fabricated by hot embossing, which makes it flexible and cost-efficient. Thin ZIF-8 films are uniformly grown on the waveguides surface through a simple solution method, which is crucial for the envisioned production of metal organic framework-based sensing devices on a large scale. Experimental results show that the produced optical elements exhibit a sensitivity of ≈2.5 μW/5 vol% toward carbon dioxide (CO2) with very rapid response time (≈6 s) and excellent reversibility of adsorption and desorption of the gas molecules. The demonstrated planar polymer sensing devices provide the potential to develop flexible on-chip gas sensors in an inexpensive and reproducible way.
Keywords
- gas sensors, metal-organic frameworks, optical sensing, optical waveguides, planar polymer waveguides
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Advanced Materials Technologies, Vol. 7, No. 12, 2200395, 12.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Planar Polymer Optical Waveguide with Metal-Organic Framework Coating for Carbon Dioxide Sensing
AU - Zheng, Lei
AU - Keppler, Nils
AU - Zhang, Huajun
AU - Behrens, Peter
AU - Roth, Bernhard
N1 - Funding Information: L.Z. and N.K. contributed equally to this work. The authors acknowledge the financial support from the German Research Foundation (DFG) under Germany's Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453).
PY - 2022/12
Y1 - 2022/12
N2 - An easily fabricated gas sensor based on planar polymer optical waveguides with an integrated zeolite imidazole framework-8 (ZIF-8) thin film is presented for carbon dioxide detection and sensing. The planar optical waveguides are made of polymethylmethacrylate and fabricated by hot embossing, which makes it flexible and cost-efficient. Thin ZIF-8 films are uniformly grown on the waveguides surface through a simple solution method, which is crucial for the envisioned production of metal organic framework-based sensing devices on a large scale. Experimental results show that the produced optical elements exhibit a sensitivity of ≈2.5 μW/5 vol% toward carbon dioxide (CO2) with very rapid response time (≈6 s) and excellent reversibility of adsorption and desorption of the gas molecules. The demonstrated planar polymer sensing devices provide the potential to develop flexible on-chip gas sensors in an inexpensive and reproducible way.
AB - An easily fabricated gas sensor based on planar polymer optical waveguides with an integrated zeolite imidazole framework-8 (ZIF-8) thin film is presented for carbon dioxide detection and sensing. The planar optical waveguides are made of polymethylmethacrylate and fabricated by hot embossing, which makes it flexible and cost-efficient. Thin ZIF-8 films are uniformly grown on the waveguides surface through a simple solution method, which is crucial for the envisioned production of metal organic framework-based sensing devices on a large scale. Experimental results show that the produced optical elements exhibit a sensitivity of ≈2.5 μW/5 vol% toward carbon dioxide (CO2) with very rapid response time (≈6 s) and excellent reversibility of adsorption and desorption of the gas molecules. The demonstrated planar polymer sensing devices provide the potential to develop flexible on-chip gas sensors in an inexpensive and reproducible way.
KW - gas sensors
KW - metal-organic frameworks
KW - optical sensing
KW - optical waveguides
KW - planar polymer waveguides
UR - http://www.scopus.com/inward/record.url?scp=85131587967&partnerID=8YFLogxK
U2 - 10.1002/admt.202200395
DO - 10.1002/admt.202200395
M3 - Article
AN - SCOPUS:85131587967
VL - 7
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
IS - 12
M1 - 2200395
ER -