Novel Nanofabricated Mo Field-Emitter Array for Low-Cost and Large-Area Application

Li, Nannan; Yan, Fei; Pang, Shucai; Zhang, Baoqing; Luo, Yi

doi:10.1109/ted.2018.2862409

Cited by 12 publications

(8 citation statements)

References 25 publications

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“…On this basis, focus has been given to the study of field emission (FE) behavior of different types of one-dimensional (1-D) nanostructured materials in both array − and nonarray form (Table S1 in the Supporting Information). Promising one-dimensional field emitters include carbon nanotubes, − Mo, W, and semiconductors such as ZnO, TiO 2 , SnO 2 , WO 3 , etc. Several factors such as morphology (e.g., whiskerlike structure of CNTs), low work function, high melting point, high chemical stability, uniformity in a stable emission current, and ease of synthesis control the efficiency and applicability of a field emitter.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase

Kiran

Deore

et al. 2022

ACS Appl. Electron. Mater.

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2-D Ti3C2TX MXene nanosheets are obtained by etching Ti3SiC2 MAX phase that is synthesized by heating the elemental Ti, Si, and C mixture at high temperature. The electron emission behavior of both Ti3C2TX MXene and Ti3SiC2 MAX phase is studied. MXene exhibits excellent field emission characteristics with a turn-on field of 4.7 V μm–1, and that for the Ti3SiC2 MAX phase is 6.5 V μm–1. The turn-on electric field corresponding to an emission current density of 10 μA cm–2 is 5.0 V μm–1 for Ti3C2TX MXene and 7.5 V μm–1 for the Ti3SiC2 MAX phase. The calculated enhancement factor of MXene nanosheets is ∼4280, which is one of the highest reported enhancement factors to date. In order to get theoretical insight into the field emission properties for Ti3C2 and OH-terminated Ti3C2 MXene in comparison to the Ti3SiC2 MAX phase, we have presented the structure and electronic properties from state of the art density functional theory (DFT) simulations. The interaction of – OH with Ti3C2 involves charge transfer from the “Ti” 3d orbital to −OH. The computed work function follows the trend Ti3SiC2 > Ti3C2 > Ti3C2/OH, which supports the maximum field emission in −OH-terminated Ti3C2 MXene and the minimum field emission in the Ti3SiC2 MAX phase.

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Section: Introductionmentioning

confidence: 99%

Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase

Kiran

Deore

et al. 2022

ACS Appl. Electron. Mater.

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“…One of the most widespread methods is reactive ion etching (RIE), mainly used to shrink colloidal particles so as to turn a closely packed arrangement into a non-closely packed pattern [3,[9][10][11]. Using RIE-reduced particles as a mask for metal deposition, one can obtain, for instance, a metal mesh with circular holes, whereas, with the originally closely-packed arrangement, only nearly triangular islands (corresponding to the interstices between closely-packed patterns) would be feasible [4,5].…”

Section: Introductionmentioning

confidence: 99%

Shape Deformation in Ion Beam Irradiated Colloidal Monolayers: An AFM Investigation

et al. 2020

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Self-assembly of colloidal monolayers represents a prominent approach to the fabrication of nanostructures. The modification of the shape of colloidal particles is essential in order to enrich the variety of attainable patterns which would be limited by the typical assembly of spherical particles in a hexagonal arrangement. Polymer particles are particularly promising in this sense. In this article, we investigate the deformation of closely-packed polystyrene particles under MeV oxygen ion irradiation at normal incidence using atomic force microscopy (AFM). By developing a procedure based on the fitting of particle topography with quadrics, we reveal a scenario of deformation more complex than the one observed in previous studies for silica particles, where several phenomena, including ion hammering, sputtering, chemical modifications, can intervene in determining the final shape due to the specific irradiation conditions. In particular, deformation into an ellipsoidal shape is accompanied by shrinkage and polymer redistribution with the presence of necks between particles for increasing ion fluence. In addition to casting light on particle irradiation in a regime not yet explored, we present an effective method for the characterization of the colloidal particle morphology which can be applied to describe and understand particle deformation in other regimes of irradiation or with different techniques.

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“…The direct electron‐beam lithography (EBL) [ 54 ] could enable coplanar geometrically asymmetric nanostructure but compromise significant limitations in terms of low‐throughput, poor scalability to large area and rough boundaries. Here, a novel fabrication process developed from our reported technique [ 55–57 ] is demonstrated to fabricate coplanar asymmetric tip‐to‐edge metal nanostructure with sub‐10 nm air channel and different tip‐to‐edge height. Figure S2, Supporting Information presents step‐by‐step fabrication details.…”

Section: Resultsmentioning

confidence: 99%

Sub‐Picosecond Nanodiodes for Low‐Power Ultrafast Electronics

Li¹,

Zhang²,

He³

et al. 2021

Advanced Materials

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The tradeoff between ultrahigh speed and low power is a dominant challenge in continuously improving modern electronics. Fundamental electronic devices with ultrafast response are highly desired in low‐power electronics. However, conventional semiconductor electronic devices now near the speed limit from the physical roadblocks including short‐channel effect, restricted carrier velocity, and heat death. Currently emerging electronic devices also face formidable difficulties to achieve high‐speed performance at low operating voltage without heat disturbance. Here, a novel fabricated coplanar tip‐to‐edge semiconductor‐free nanostructure with asymmetric sub‐10 nm air channel is reported, stimulating electric‐field accelerated scattering‐free transport of electrons and resulting in ultrafast response of record sub‐picoseconds at a low turn‐on voltage around 0.7 V. Simulation results show a typical electrical response down to 64 fs, which is ≈103 times faster than that of conventional semiconductor electronic devices. The coplanar asymmetric nanostructure allows a high rectifying ratio up to 106 which is superior to that of the most promising 2D semiconducting nanodiodes. In addition, heat death is overcome due to the inherent advantages from the novel nanostructure and underlying working mechanism. The intriguing nanodiodes will attract broadly interests in electronics due to their potential as rudimentary building blocks in ultrafast electronic integrated circuits.

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Novel Nanofabricated Mo Field-Emitter Array for Low-Cost and Large-Area Application

Cited by 12 publications

References 25 publications

Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase

Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase

Shape Deformation in Ion Beam Irradiated Colloidal Monolayers: An AFM Investigation

Sub‐Picosecond Nanodiodes for Low‐Power Ultrafast Electronics

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Novel Nanofabricated Mo Field-Emitter Array for Low-Cost and Large-Area Application

Cited by 12 publications

References 25 publications

Comparative Study of Cold Electron Emission from 2D Ti3C2TX MXene Nanosheets with Respect to Its Precursor Ti3SiC2 MAX Phase

Comparative Study of Cold Electron Emission from 2D Ti3C2TX MXene Nanosheets with Respect to Its Precursor Ti3SiC2 MAX Phase

Shape Deformation in Ion Beam Irradiated Colloidal Monolayers: An AFM Investigation

Sub‐Picosecond Nanodiodes for Low‐Power Ultrafast Electronics

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Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase

Comparative Study of Cold Electron Emission from 2D Ti₃C₂T_X MXene Nanosheets with Respect to Its Precursor Ti₃SiC₂ MAX Phase