Ti3C2 (MXene) based field electron emitters

Chen Jiangtao; Yang Bingjun; Lim Yu Dian; Duan Wenhui; Zhao Yun; Tay Beng Kang; Yan Xingbin

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Ti3C2 (MXene) based field electron emitters

机译：Ti3C2（MXENE）基场电子发射器

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摘要

As a novel class of two-dimensional materials, MXene has provoked tremendous progress for various applications in functional devices. Here, we pioneer a preliminary understanding on the field emission behavior of MXene for the first time. Ti3C2 paper is fabricated by using facile filtration method, and multiple vertical sheets appear on the surface of MXene paper with high electrical conductivity (2.93 x 10(5) S m(-1)) and low work function (3.77 eV). The field electron emission performance and electric field distribution on MXene emitters are measured and simulated under planar and standing conditions. Both emitter conditions exhibit stable, uniform electron emission pattern, and the standing emitter achieves high emission current density of 59 mA cm(-2) under 7.5 V mu m(-1). This work demonstrates the feasibility of MXene as cold electron source, establishing a preliminary foundation for its applications in field emission-based devices.

机译：作为一类新型的二维材料，MXENE在功能装置中的各种应用引起了巨大进展。在这里，我们首次对MXENE的场排放行为进行了初步理解。通过使用容易过滤方法制造TI3C2纸，并且多个垂直片材出现在具有高导电性（2.93×10（5）S m（-1））和低功函数（3.77eV）的蒙翅纸表面上的。在平面和常设条件下测量和模拟MXENE发射器上的现场电子发射性能和电场分布。发射器条件均表现出稳定，均匀的电子发射图案，并且常设发射器在7.5Vμm（-1）下实现59mA cm（-2）的高发射电流密度。这项工作展示了MXENE作为冷电子源的可行性，为其在基于场发射的设备中的应用建立了初步基础。

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来源
《Nanotechnology》 |2020年第28期|共9页
作者
Chen Jiangtao; Yang Bingjun; Lim Yu Dian; Duan Wenhui; Zhao Yun; Tay Beng Kang; Yan Xingbin;
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作者单位

Chinese Acad Sci Lab Clean Energy Chem &

Mat State Key Lab Solid Lubricat Lanzhou Inst Chem Phys Lanzhou 730000 Peoples R China;

Chinese Acad Sci Lab Clean Energy Chem &

Mat State Key Lab Solid Lubricat Lanzhou Inst Chem Phys Lanzhou 730000 Peoples R China;

Nanyang Technol Univ Sch Elect &

Elect Engn Singapore 639798 Singapore;

Chinese Acad Sci Lab Clean Energy Chem &

Mat State Key Lab Solid Lubricat Lanzhou Inst Chem Phys Lanzhou 730000 Peoples R China;

Chinese Acad Sci Lab Clean Energy Chem &

Mat State Key Lab Solid Lubricat Lanzhou Inst Chem Phys Lanzhou 730000 Peoples R China;

Nanyang Technol Univ Sch Elect &

Elect Engn Singapore 639798 Singapore;

Chinese Acad Sci Lab Clean Energy Chem &

Mat State Key Lab Solid Lubricat Lanzhou Inst Chem Phys Lanzhou 730000 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类特种结构材料;
关键词
MXene; Ti3C2; field emission; electric field distribution; emission stability;

机译：MXENE;TI3C2;场发射;电场分布;排放稳定性;

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2. Unraveling the role of Ti3C2 MXene underlayer for enhanced photoelectrochemical water oxidation of hematite photoanodes [J] . Haiyan Ji, Jiujun Deng, Shan Shao, 天然气化学（英文版） . 2021,第001期
3. Rational Design of Porous N‑Ti3C2 MXene@CNT Microspheres for High Cycling Stability in Li–S Battery [J] . Jianli Wang, Zhao Zhang, Xufeng Yan, 纳微快报：英文版 . 2020,第001期
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5. Ti3C2 (MXene) based field electron emitters [J] . Chen Jiangtao, Yang Bingjun, Lim Yu Dian, Nanotechnology . 2020,第28期

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Ti3C2 (MXene) based field electron emitters

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