Characterization of vanadium oxide thin films with different stoichiometry using Raman spectroscopy

Zhang, Chunzi; Yang, Q.; Koughia, Cyril; Ye, Fan; Sanayei, Mohsen; Wen, Shi-Jie; Kasap, S. O.

doi:10.1016/j.tsf.2016.07.082

Cited by 84 publications

(57 citation statements)

References 18 publications

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“…The lines at 425 and 494 cm −1 might also be associated with V 4 O 9 , whereas the remaining bands should correspond to the signal from V 3 O 7 . The spectra of our samples are remarkably similar to those reported earlier for V 7 O 16 (Figure d), V 6 O 13 (Figure e), and the product of degradation of some samples (Figures b and a) . Therefore, we believe that V 3 O 7 was produced in all the disputable cases.…”

Section: Resultssupporting

confidence: 89%

“…Probably, this is a result of the nanometer size of the crystallites in the film. Compared with the magnetron‐sputtered films (Figure S4c), we see a very good agreement between the Raman spectra. The additional small feature at 430 cm −1 might be the missing E g mode, whereas a broad band around 808 cm −1 might be attributed to the presence of amorphous V 2 O 3 inclusions.…”

Section: Resultssupporting

confidence: 57%

“…Raman spectra similar to that of the intermediate structure have been observed for VO x thin films produced by PLD (Figure d) and magnetron sputtering (Figure e) . Based on Raman scattering data for PLD films, the authors of the study suppose strong similarities between the structures of the films and the vanadium‐oxide nanotubes with embedded amines.…”

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectrasupporting

confidence: 57%

“…Raman scattering in (a) vanadium oxide nanotubes, (b) a product of vanadium oxide nanotubes degradation, (c) a V 2 O 5 xerogel, (d) a pulsed laser deposited film referred to V 7 O 16 , and (e) a magnetron sputtered film referred to V 6 O 13 [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectramentioning

confidence: 99%

“…However, this fitting is debatable, because the Raman spectrum of PLD films is equivalent to the spectrum of the intermediate phase (supposedly α‐V 2 O 5 xerogel) rather than to that of VO x nanotubes. The structure of magnetron‐grown films was misattributed to V 6 O 13 . We will address the intermediate phase problem in detail in Section .…”

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectramentioning

confidence: 99%

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A review of Raman spectroscopy of vanadium oxides

Shvets

Dikaya

Maksimova

et al. 2019

J Raman Spectroscopy

355

216

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This review summarizes Raman scattering data for different stable and metastable phases of vanadium oxides. We analyze literature data on crystal structures existing in the binary vanadium‐oxygen system. If available, we combine these data with experimental Raman spectra and relations of vibrational modes with the atomic arrangements and motions in crystals. Further, we employ arc sputtering to produce vanadium oxide films, including α and β‐vanadium, V14O6, VO, V2O3, V3O5, several phases of VO2, V6O13, V3O7, and V2O5, as confirmed by X‐ray diffraction analysis. All the films are studied using Raman spectroscopy: low‐ and high‐temperature V3O5 and VOx (1.67 < x < 2) are investigated for the first time. We demonstrate that a significant change in the V3O5 spectrum takes place along the phase transition occurring at approximately 140 °C. Moreover, we describe differences between the spectra of VO2 polymorphs produced without doping impurities, VO2 (M1), VO2 (M2), and VO2 (T). Finally, we analyze conflicting data on V7O16 and V3O7 and provide an explanation of the observed spectra. Overall, 21 spectra are identified for 53 known phases. Our work is aimed at laying the groundwork for easy identification of vanadium oxide phases in thin films, using Raman spectroscopy.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 57%

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectrasupporting

confidence: 57%

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectramentioning

confidence: 99%

Section: Vanadium Oxide Polymorphs: Structures and Raman Spectramentioning

confidence: 99%

See 3 more Smart Citations

A review of Raman spectroscopy of vanadium oxides

Shvets

Dikaya

Maksimova

et al. 2019

J Raman Spectroscopy

355

216

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Femtojoule‐Power‐Consuming Synaptic Memtransistor Based on Mott Transition of Multiphasic Vanadium Oxides

Iqbal

Duy

Kang

et al. 2021

Adv Funct Materials

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To realize the potential of Mott transition of multiphasic vanadium oxides (VO x ) for memory applications, the development of VO x memtransistors on SiO 2 wafer is introduced. Through electrical characterizations, the volatile memory behaviors of the VO x memtransistors are observed in both twoand three-terminal measurements. Their capacitive memory and resistive switching mechanisms are strongly related to the mixed VO x /SiO 2 interface (called VSiO x ). VSiO x supports the Mott transition in VO x at low bias voltages (<0.5 V), leading to the low power consumption of the memtransistor. Moreover, the fast switching time (≈35 ns) and tunable memory retention with the synaptic functions (potentiation and depression) of the memtransistors (by using the gate and drain biases) are demonstrated. Overall, the findings open up major opportunities for constructing ultrafast and femto-joule power-consuming neuromorphic devices.

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Plasmonic Resonance Shifts in Gold Nanoparticles‐Thermochromic VO₂ Thin Film Hybrid Platforms: A Joint Experimental and Numerical Study

Savorianakis,

Rousseau,

Sergievskaya

et al. 2024

Adv Materials Inter

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The combination of the phase transition in thermochromic vanadium dioxide (VO2) with plasmonic nanoparticles paves the way for applications in various fields, including optical sensing, advanced coatings, and dynamic optical devices. This study presents a simple fabrication method to control both the size and surface coverage of NPs combined with VO2. First, a thermochromic VO2 coating with a phase transition at 68 °C is synthesized using reactive magnetron sputtering. Then, monodisperse 30 nm diameter gold NPs are bonded to the VO2 surface using (3‐aminopropyl)trimethoxysilane (APTMS) linkers, examining the effect of immersion duration on surface coverage. Two platforms are developed: a VO2 thin film with a monolayer of NPs and a configuration with NPs between two VO2 films. The temperature‐dependent plasmonic response of these platforms is measured by extinction spectroscopy, showing a significant wavelength resonance shift of approximately 10 nm for the first platform and 20 nm for the second. Optical simulations analyze this shift over various geometries, from isolated NPs to fully covered NPs, achieving a 60 nm shift for NPs embedded in a thin VO2 film. This study demonstrates an effective approach to synthesizing thermochromic VO2 coatings with gold NPs, offering insights into the plasmonic properties of hybrid platforms.

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Characterization of vanadium oxide thin films with different stoichiometry using Raman spectroscopy

Cited by 84 publications

References 18 publications

A review of Raman spectroscopy of vanadium oxides

A review of Raman spectroscopy of vanadium oxides

Femtojoule‐Power‐Consuming Synaptic Memtransistor Based on Mott Transition of Multiphasic Vanadium Oxides

Plasmonic Resonance Shifts in Gold Nanoparticles‐Thermochromic VO₂ Thin Film Hybrid Platforms: A Joint Experimental and Numerical Study

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Characterization of vanadium oxide thin films with different stoichiometry using Raman spectroscopy

Cited by 84 publications

References 18 publications

A review of Raman spectroscopy of vanadium oxides

A review of Raman spectroscopy of vanadium oxides

Femtojoule‐Power‐Consuming Synaptic Memtransistor Based on Mott Transition of Multiphasic Vanadium Oxides

Plasmonic Resonance Shifts in Gold Nanoparticles‐Thermochromic VO2 Thin Film Hybrid Platforms: A Joint Experimental and Numerical Study

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Plasmonic Resonance Shifts in Gold Nanoparticles‐Thermochromic VO₂ Thin Film Hybrid Platforms: A Joint Experimental and Numerical Study