Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system
Niobium dioxide has a volatile memristive phase change that occurs ∼800 °C that makes it an ideal candidate for future neuromorphic electronics. A straightforward optical system has been developed on a horizontal tube furnace for in situ spectral measurements as an as-grown Nb2O5 film is annealed an...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-11-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0228400 |
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| author | Zachary R. Robinson Karsten Beckmann James Michels Vincent Daviero Elizabeth A. Street Fiona Lorenzen Matthew C. Sullivan Nathaniel Cady Alexander C. Kozen Jeffrey M. Woodward Marc Currie |
| author_facet | Zachary R. Robinson Karsten Beckmann James Michels Vincent Daviero Elizabeth A. Street Fiona Lorenzen Matthew C. Sullivan Nathaniel Cady Alexander C. Kozen Jeffrey M. Woodward Marc Currie |
| author_sort | Zachary R. Robinson |
| collection | DOAJ |
| description | Niobium dioxide has a volatile memristive phase change that occurs ∼800 °C that makes it an ideal candidate for future neuromorphic electronics. A straightforward optical system has been developed on a horizontal tube furnace for in situ spectral measurements as an as-grown Nb2O5 film is annealed and ultimately crystallizes as NbO2. The system measures the changing spectral transmissivity of Nb2O5 as it undergoes both reduction and crystallization processes. We were also able to measure the transition from metallic-to-non-metallic NbO2 during the cooldown phase, which is shown to occur about 100 °C lower on a sapphire substrate than fused silica. After annealing, the material properties of the Nb2O5 and NbO2 were assessed via x-ray photoelectron spectroscopy, x-ray diffraction, and 4-point resistivity, confirming that we have made crystalline NbO2. |
| format | Article |
| id | doaj-art-c39b855cf6a94c05810277ea90b50295 |
| institution | OA Journals |
| issn | 2158-3226 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj-art-c39b855cf6a94c05810277ea90b502952025-08-20T02:18:39ZengAIP Publishing LLCAIP Advances2158-32262024-11-011411115113115113-710.1063/5.0228400Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission systemZachary R. Robinson0Karsten Beckmann1James Michels2Vincent Daviero3Elizabeth A. Street4Fiona Lorenzen5Matthew C. Sullivan6Nathaniel Cady7Alexander C. Kozen8Jeffrey M. Woodward9Marc Currie10Department of Physics, SUNY Brockport, Brockport, Rochester, New York 14420, USANY CREATES, Albany, New York 12203, USADepartment of Physics, SUNY Brockport, Brockport, Rochester, New York 14420, USADepartment of Physics, SUNY Brockport, Brockport, Rochester, New York 14420, USADepartment of Physics, SUNY Brockport, Brockport, Rochester, New York 14420, USADepartment of Physics and Astronomy, Ithaca College, Ithaca, New York 14850, USADepartment of Physics and Astronomy, Ithaca College, Ithaca, New York 14850, USACollege of Nanotechnology, Science and Engineering, University at Albany, Albany, New York 12203, USADepartment of Physics, University of Vermont, Burlington, Vermont 05405, USAU.S. Naval Research Laboratory, Washington, District of Columbia 20375, USAU.S. Naval Research Laboratory, Washington, District of Columbia 20375, USANiobium dioxide has a volatile memristive phase change that occurs ∼800 °C that makes it an ideal candidate for future neuromorphic electronics. A straightforward optical system has been developed on a horizontal tube furnace for in situ spectral measurements as an as-grown Nb2O5 film is annealed and ultimately crystallizes as NbO2. The system measures the changing spectral transmissivity of Nb2O5 as it undergoes both reduction and crystallization processes. We were also able to measure the transition from metallic-to-non-metallic NbO2 during the cooldown phase, which is shown to occur about 100 °C lower on a sapphire substrate than fused silica. After annealing, the material properties of the Nb2O5 and NbO2 were assessed via x-ray photoelectron spectroscopy, x-ray diffraction, and 4-point resistivity, confirming that we have made crystalline NbO2.http://dx.doi.org/10.1063/5.0228400 |
| spellingShingle | Zachary R. Robinson Karsten Beckmann James Michels Vincent Daviero Elizabeth A. Street Fiona Lorenzen Matthew C. Sullivan Nathaniel Cady Alexander C. Kozen Jeffrey M. Woodward Marc Currie Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system AIP Advances |
| title | Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system |
| title_full | Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system |
| title_fullStr | Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system |
| title_full_unstemmed | Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system |
| title_short | Measurement of the crystallization and phase transition of niobium dioxide thin-films using a tube furnace optical transmission system |
| title_sort | measurement of the crystallization and phase transition of niobium dioxide thin films using a tube furnace optical transmission system |
| url | http://dx.doi.org/10.1063/5.0228400 |
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