期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 8, 期 9, 页码 3069-3078出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9tc06423k
关键词
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资金
- National Energy Technology Laboratory (NETL) under the RES contract [DE-FE0004000]
- National Science Foundation (NSF) [ECCS-1707506]
- Scalable Nanomanufacturing program [CBET-1449383]
- NSF [ECC-1542101]
- OSU
- NSF via the Major Research Instrumentation (MRI) Program [1040588]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1040588] Funding Source: National Science Foundation
The infrared (IR) gas sensing technique is excellent for CO2 gas detection systems that require high accuracy and safety standard; however, there is a significant barrier to its application due to its high cost and difficulty in miniaturization. CO2 sensors that are functional within near- or short-wavelength IR have the potential to reduce this barrier. In this work, a highly sensitive plasmonic material based on nanostructured covellite copper sulfide (CuS), which exhibits desired localized surface plasmon resonance for surface-enhanced IR absorption (SEIRA) throughout near- and mid-IR ranges, was investigated. We prepared CuS thin films facilely in an additive manner based on a spatial successive ionic layer adsorption and reaction process at room temperature. The resulting CuS thin film possesses a structure consisting of hexagonal nanoflakes, and demonstrates significant SEIRA for 100 ppm CO2 with an enhancement factor of 10(4).
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