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<p>In this work, we use a facile hydrothermal route to synthesize silver vanadium oxide (β-AgVO<sub>3</sub>) nanofibers using silver nitrate and ammonium metavanadate as silver and vanadate precursors, respectively. X-ray diffraction, Raman spectroscopy, Field Emission Scanning Electron Microscopy, and UV–Visible spectrometry results reveal that the hydrothermal route produces high-quality β-AgVO<sub>3</sub> ultra-long length nanofibers, with elevated purity and crystallinity. We investigated the field electron emission properties of ultra-long β-AgVO<sub>3</sub> nanofibers under a base pressure of 1 × 10<sup>–8</sup>&#xa0;mbar. The enhancement of field electron emission of ultra-long length nanofibers β-AgVO<sub>3</sub> is observed in terms of turn-on field, threshold field, and maximum current density at applied field. The values of low turn-on field, and threshold field, found to be ∼4.6, and 5.8&#xa0;V/μm at current density 1&#xa0;μA/cm<sup>2</sup> and 10&#xa0;uA/cm<sup>2</sup>, respectively. The β-AgVO<sub>3</sub> nanofibers emitter delivers a large emission current density of ∼175&#xa0;μA/cm<sup>2</sup> at applied electric field of ∼ 7.6&#xa0;V/μm. The Fowler–Nordheim (F–N) plot of the β-AgVO<sub>3</sub> nanofibers shows the semiconductor behaviour and estimates the values of the field enhancement factor (β), which is found to be ~ 1062. The FE behaviour of β-AgVO<sub>3</sub> nanofibers makes them a favourable for vacuum microelectronics application.</p>

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Ultralong β-AgVO3 nanofibers for field electron emission application

  • 期刊论文

  • 发表日期：

    2025年6月26日

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  • Vinayak Shinde,
  • Ambadas B. Phatangare,
  • Somnath R. Bhopale,
  • Sachin Suryawanshi,
  • S. S. Dahiwale,
  • Sanjay D. Dhole,
  • Mahendra A. More,
  • Pankaj Koinkar

摘要

In this work, we use a facile hydrothermal route to synthesize silver vanadium oxide (β-AgVO3) nanofibers using silver nitrate and ammonium metavanadate as silver and vanadate precursors, respectively. X-ray diffraction, Raman spectroscopy, Field Emission Scanning Electron Microscopy, and UV–Visible spectrometry results reveal that the hydrothermal route produces high-quality β-AgVO3 ultra-long length nanofibers, with elevated purity and crystallinity. We investigated the field electron emission properties of ultra-long β-AgVO3 nanofibers under a base pressure of 1 × 10–8 mbar. The enhancement of field electron emission of ultra-long length nanofibers β-AgVO3 is observed in terms of turn-on field, threshold field, and maximum current density at applied field. The values of low turn-on field, and threshold field, found to be ∼4.6, and 5.8 V/μm at current density 1 μA/cm2 and 10 uA/cm2, respectively. The β-AgVO3 nanofibers emitter delivers a large emission current density of ∼175 μA/cm2 at applied electric field of ∼ 7.6 V/μm. The Fowler–Nordheim (F–N) plot of the β-AgVO3 nanofibers shows the semiconductor behaviour and estimates the values of the field enhancement factor (β), which is found to be ~ 1062. The FE behaviour of β-AgVO3 nanofibers makes them a favourable for vacuum microelectronics application.