A Low-Voltage, Pre-Modulation Terahertz Oscillator Based on a Carbon Nanotube Cold-Cathode

Xiaotao Xu; Xuesong Yuan; Qingyun Chen; Matthew Cole; Yu Zhang; Jie Xie; Yong Yin; Hailong Li; Yang Yan

doi:10.1109/TED.2020.2968932

A Low-Voltage, Pre-Modulation Terahertz Oscillator Based on a Carbon Nanotube Cold-Cathode

Xiaotao Xu, Xuesong Yuan, Qingyun Chen, Matthew Cole, Yu Zhang, Jie Xie, Yong Yin, Hailong Li, Yang Yan

Research output: Contribution to journal › Article › peer-review

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Abstract

To develop miniaturized and compact vacuum electron devices, new approaches to device manufacturing must be embraced. Here, a terahertz oscillator based on carbon nanotube (CNT) cold cathode is investigated through particle-in-cell (PIC) simulations. The studies show that the high-frequency (HF) field excited by the device can modulate the field emission current efficiently, with an output power of 4.6 W at 139.4 GHz obtained at an operating voltage of 2.9 kV and an initial emission current and current density of 15.8 mA and 7.65 A/cm 2 , respectively, and the efficiency is 10.0%.

Original language	English
Pages (from-to)	1266 - 1269
Number of pages	4
Journal	IEEE Transactions on Electron Devices
Volume	67
Issue number	3
Early online date	14 Feb 2020
DOIs	https://doi.org/10.1109/TED.2020.2968932
Publication status	Published - 31 Mar 2020

Keywords

nanotechnology
Electronics engineering
electron emission
field electron emission
Carbon nanotube (CNT)

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title = "A Low-Voltage, Pre-Modulation Terahertz Oscillator Based on a Carbon Nanotube Cold-Cathode",

abstract = "To develop miniaturized and compact vacuum electron devices, new approaches to device manufacturing must be embraced. Here, a terahertz oscillator based on carbon nanotube (CNT) cold cathode is investigated through particle-in-cell (PIC) simulations. The studies show that the high-frequency (HF) field excited by the device can modulate the field emission current efficiently, with an output power of 4.6 W at 139.4 GHz obtained at an operating voltage of 2.9 kV and an initial emission current and current density of 15.8 mA and 7.65 A/cm 2 , respectively, and the efficiency is 10.0\%.",

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AU - Xu, Xiaotao

AU - Yuan, Xuesong

AU - Chen, Qingyun

AU - Cole, Matthew

AU - Zhang, Yu

AU - Xie, Jie

AU - Yin, Yong

AU - Li, Hailong

AU - Yan, Yang

PY - 2020/3/31

Y1 - 2020/3/31

N2 - To develop miniaturized and compact vacuum electron devices, new approaches to device manufacturing must be embraced. Here, a terahertz oscillator based on carbon nanotube (CNT) cold cathode is investigated through particle-in-cell (PIC) simulations. The studies show that the high-frequency (HF) field excited by the device can modulate the field emission current efficiently, with an output power of 4.6 W at 139.4 GHz obtained at an operating voltage of 2.9 kV and an initial emission current and current density of 15.8 mA and 7.65 A/cm 2 , respectively, and the efficiency is 10.0%.

AB - To develop miniaturized and compact vacuum electron devices, new approaches to device manufacturing must be embraced. Here, a terahertz oscillator based on carbon nanotube (CNT) cold cathode is investigated through particle-in-cell (PIC) simulations. The studies show that the high-frequency (HF) field excited by the device can modulate the field emission current efficiently, with an output power of 4.6 W at 139.4 GHz obtained at an operating voltage of 2.9 kV and an initial emission current and current density of 15.8 mA and 7.65 A/cm 2 , respectively, and the efficiency is 10.0%.

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KW - Electronics engineering

KW - electron emission

KW - field electron emission

KW - Carbon nanotube (CNT)

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A Low-Voltage, Pre-Modulation Terahertz Oscillator Based on a Carbon Nanotube Cold-Cathode

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Keywords

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