Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method
We investigated the use of magnetite, a type of iron oxide with low environmental impact, as a mid-infrared detector. Mid-infrared rays with a wavelength of 10.6 μm were irradiated to magnetite thin films at regular intervals using a chopper, and changes in electrical resistance were recorded. For c...
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AIP Publishing LLC
2025-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0236059 |
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| author | Kazuma Iwasaki Seishi Abe Tadao Tanabe |
| author_facet | Kazuma Iwasaki Seishi Abe Tadao Tanabe |
| author_sort | Kazuma Iwasaki |
| collection | DOAJ |
| description | We investigated the use of magnetite, a type of iron oxide with low environmental impact, as a mid-infrared detector. Mid-infrared rays with a wavelength of 10.6 μm were irradiated to magnetite thin films at regular intervals using a chopper, and changes in electrical resistance were recorded. For comparison, thin films comprising platinum (Pt) nanoparticles dispersed in magnetite were prepared and evaluated in the same way. The results showed that the average decrease in electrical resistance of magnetite corresponding to the mid-infrared irradiation period was 3.50 a.u., the average response time was 0.12 s, and the signal-to-noise ratio was 2.25. Therefore, magnetite can be used as a mid-infrared detector. Magnetite with Pt nanoparticles exhibited a two-orders-of-magnitude decrease in electrical resistance compared to that without Pt nanoparticles. This contributes to lower device power consumption. Its sensitivity is comparable to that of magnetite without Pt nanoparticles, with a signal-to-noise ratio of 1.66. Based on our results, magnetite could contribute to the realization and widespread use of mid-infrared sensors with low environmental impact in the future. |
| format | Article |
| id | doaj-art-c6e2731d757e48d8b7c11c3fae38f7bf |
| institution | Kabale University |
| issn | 2158-3226 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
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| series | AIP Advances |
| spelling | doaj-art-c6e2731d757e48d8b7c11c3fae38f7bf2025-02-03T16:40:42ZengAIP Publishing LLCAIP Advances2158-32262025-01-01151015127015127-610.1063/5.0236059Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering methodKazuma Iwasaki0Seishi Abe1Tadao Tanabe2Department of Functional Control Systems, Shibaura Institute of Technology, 3-7-5, Toyosu, Koto-ku, Tokyo 1358548, JapanResearch Institute for Electromagnetic Materials, Tomiya 981-3341, JapanDepartment of Functional Control Systems, Shibaura Institute of Technology, 3-7-5, Toyosu, Koto-ku, Tokyo 1358548, JapanWe investigated the use of magnetite, a type of iron oxide with low environmental impact, as a mid-infrared detector. Mid-infrared rays with a wavelength of 10.6 μm were irradiated to magnetite thin films at regular intervals using a chopper, and changes in electrical resistance were recorded. For comparison, thin films comprising platinum (Pt) nanoparticles dispersed in magnetite were prepared and evaluated in the same way. The results showed that the average decrease in electrical resistance of magnetite corresponding to the mid-infrared irradiation period was 3.50 a.u., the average response time was 0.12 s, and the signal-to-noise ratio was 2.25. Therefore, magnetite can be used as a mid-infrared detector. Magnetite with Pt nanoparticles exhibited a two-orders-of-magnitude decrease in electrical resistance compared to that without Pt nanoparticles. This contributes to lower device power consumption. Its sensitivity is comparable to that of magnetite without Pt nanoparticles, with a signal-to-noise ratio of 1.66. Based on our results, magnetite could contribute to the realization and widespread use of mid-infrared sensors with low environmental impact in the future.http://dx.doi.org/10.1063/5.0236059 |
| spellingShingle | Kazuma Iwasaki Seishi Abe Tadao Tanabe Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method AIP Advances |
| title | Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| title_full | Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| title_fullStr | Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| title_full_unstemmed | Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| title_short | Mid-infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| title_sort | mid infrared detection device using magnetite substrates deposited by radio frequency sputtering method |
| url | http://dx.doi.org/10.1063/5.0236059 |
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