Optimization on configuration of surface conduction electron-emitters

Cheng, Hui; Li, Yiming

doi:10.1016/j.microrel.2010.01.011

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…Recently, a large variety of nanoelectronic devices with a nanometer-order gap width have been developed, such as electron emitters used for displays, [1][2][3][4][5] single-electron devices, [6][7][8] nanotube devices, [9][10][11] biosensing devices, [12][13][14][15] and monomolecular sensing devices. 14,16) The gap width of the nanogap devices are expected to be in the order of the diameter of a single DNA nucleotide.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of the activation process for the formation of a surface-conduction electron-emitter

Tsukamoto

Okuda

Arai

et al. 2015

Jpn. J. Appl. Phys.

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The major role of the chemical reaction between a silica substrate and deposited carbon in the activation process for the formation of a surface-conduction electron emitter (SCE) is investigated. The SCE emits electrons by the tunneling effect when an electric field is applied across a nanoscale gap. The nanogap is spontaneously formed by the activation process, wherein a pulse voltage is applied between a pair of electrodes, which are separated by a narrow gap inside a vacuum chamber in the presence of hydrocarbons. At the gap, two elemental processes compete; the deposition of carbon by the electron-induced decomposition of hydrocarbons and the consumption of carbon by reaction with the silica substrate. The balance of the dynamics of the two processes, which simply depends on the temperature at the gap, is responsible for the spontaneous determination of the width of the nanogap. The calculation based on the model that involves the two competitive processes agrees with the experimental results on the activation process.

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Section: Introductionmentioning

confidence: 99%

Mechanism of the activation process for the formation of a surface-conduction electron-emitter

Tsukamoto

Okuda

Arai

et al. 2015

Jpn. J. Appl. Phys.

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“…Tsai 4,5 proposed the use of focused ion beams (FIBs) to produce nanogaps on a palladium thin film and the use of hydrogen plasma treatment to increase the edge roughness of the nanogap. Lo [7][8][9][10] found that, in terms of the field-emission properties, a nanogap structure with an inclined protrusion cathode in a palladium strip fabricated by hydrogen absorption is superior to a conventional nanogap structure with a coplanar cathode. Wu 11 applied a conductive film structure with a wasp-waisted shape to control the formation positions of fissures.…”

Section: Introductionmentioning

confidence: 99%

Electron Emission Properties of Surface-Conduction Electron Emitters With a PdO-C-PdO Multilayer Conductive Film Deposited by Magnetron Sputtering

Sun

2011

Journal of Elec Materi

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Conductive films are an essential component in surface-conduction electron emitters (SCEs), and they have a major influence on the electron emission properties of SCEs. In this work, a novel PdO-C-PdO multilayer film deposited by magnetron sputtering is proposed as the conductive film in SCEs. Three SCE cathodes with this type of multilayer film were fabricated, together with three other SCE cathodes with a PdO single-layer film used as a reference. For these cathodes, the dependences of the conduction current and the emission current on the device voltage and the anode voltage were measured, and the luminescence patterns were observed after the electroforming and activation processes of the conductive films had occurred. The surface morphologies of the conductive films were analyzed by scanning electron microscopy. The results indicate that the SCEs with the PdO-C-PdO multilayer conductive film have better electron emission properties compared with the SCEs with the PdO single-layer conductive film. For an anode voltage of 2 kV and a device voltage of 14 V, the emission current and the electron emission ratio of the SCEs with the PdO-C-PdO multilayer film can reach 179.5 lA and 2.2&, respectively.

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Thermal shock induced nanocrack as high efficiency surface conduction electron emitter

Chen

Wang

et al. 2011

Applied Surface Science

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Optimization on configuration of surface conduction electron-emitters

Cited by 6 publications

References 16 publications

Mechanism of the activation process for the formation of a surface-conduction electron-emitter

Mechanism of the activation process for the formation of a surface-conduction electron-emitter

Electron Emission Properties of Surface-Conduction Electron Emitters With a PdO-C-PdO Multilayer Conductive Film Deposited by Magnetron Sputtering

Thermal shock induced nanocrack as high efficiency surface conduction electron emitter

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