Study the electron field emission properties of silver nanoparticles decorated carbon nanotubes-based cold-cathode field emitters via post-plasma treatment

Raza, Mohammad Moeen Hasan; Aalam, Shah Masheerul; Sadiq, Mohd; Sarvar, Mohd; Zulfequar, M.; Husain, Samina

doi:10.1007/s10854-022-07900-y

Cited by 4 publications

(2 citation statements)

References 79 publications

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“…This is because the work function of silicon is decreased due to the incorporation of Ag metal nanoparticles on the SiNWs. As a result, the structural and electronic properties are modified and the potential barrier is reduced which promotes the quantum tunnelling of electrons at low turn-on field 20 . The other EFE parameter is the field enhancement factor be determined by F-N equation 21 , i.e.,…”

Section: Resultsmentioning

confidence: 99%

Effect of Metal Nanoparticles in the Field Emission of Silicon Nanowires

Madhavi,

Raju,

Basappa

et al. 2024

jmmf

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In this work, an efficient method is reported for creating a metal nanoparticle (silver) / Si composite structure consisting of a vertical array of silicon nanowires (SiNWs) decorated with silver metal nanoparticles. A two-stage metal-assisted etching method is employed to obtain SiNWs and Silver (Ag) metal nanoparticles are decorated on the SiNWs using the electroless deposition method. It allows the good coverage of silver metal nanoparticles over SiNWs. Scanning Electron Microscopy (SEM) analysis revealed that Ag was covered with SiNWs. High-work function metal nanoparticles such as Ag nanoparticles on SiNWs have been utilized in different applications such as photovoltaics and sensors. The size of SiNWs is determined through the Raman shift. The silicon optical phonon peak showed an increase in redshift and a decrease of full-width at half maxima with a decrease in diameter due to the quantum confinement. The Electron Field Emission (EFE) characteristics of the Agdecorated SiNW films were studied based on the current-voltage measurements and analyzed using the Fowler-Nordheim (F-N) equation. The low turn-on field is obtained through the Ag metal nanoparticles which have wider applications in lowpower operational devices.

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Section: Resultsmentioning

confidence: 99%

Effect of Metal Nanoparticles in the Field Emission of Silicon Nanowires

Madhavi,

Raju,

Basappa

et al. 2024

jmmf

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“…A field emission electron source is a promising material for many vacuum microelectronic devices. Compared with the hot cathode, the field emission electron source has the advantages of fast response, small size and no pre-heating requirement before use [2,3]. Moreover, cold electron devices could work at the high-frequency and wide-bandwidth regime.…”

Section: Introductionmentioning

confidence: 99%

Boosting field electron emission of carbon nanotubes through small-hole-patterning design of the substrate

Chen,

Chang,

et al. 2023

J. Phys. D: Appl. Phys.

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High field emission of carbon nanotube (CNT) cold cathodes is realized by printing modified CNT paste on small-hole-patterned substrates. The field emission characteristics and stability of samples under DC continuous and pulse driving modes have been investigated. The results show that the maximum emission current of CNT emitters can be up to 45 mA at an electric field of 2100 V (7.0 V μm−1), corresponding to a high current density of 643 mA cm−2 under continuous mode. The cathodes also demonstrate stable electron emission without obvious attenuation. In pulse (10 μs and 200 Hz) mode, the peak current can reach 250 mA and the corresponding current density is 3.57 A cm−2 under an electric field of 14.0 V μm−1. The hole-patterned CNT cathode presents unique advantages in field emission current, stability and especially endurance of high electric field. This work makes it possible to fabricate highly efficient emission CNT cold electron sources, which have broad application prospects in vacuum electronic devices requiring both large current and high current density.

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Revealing the crucial role of skeleton restructuring on erosion dispersion of Ag–CuO contact materials

Wang²,

Yuan³

et al. 2023

Applied Surface Science

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Study the electron field emission properties of silver nanoparticles decorated carbon nanotubes-based cold-cathode field emitters via post-plasma treatment

Cited by 4 publications

References 79 publications

Effect of Metal Nanoparticles in the Field Emission of Silicon Nanowires

Effect of Metal Nanoparticles in the Field Emission of Silicon Nanowires

Boosting field electron emission of carbon nanotubes through small-hole-patterning design of the substrate

Revealing the crucial role of skeleton restructuring on erosion dispersion of Ag–CuO contact materials

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