In situ synthesis of 3D metal oxides/Ni3C on the macroporous electrically conductive network for enhanced electron field emission

Rui Han; Yuyao Chen; Kaijie Gu; Dajun Wu; Quanliang Zhao; Lianwei Wang; Paul K. Chu

doi:10.1016/j.matlet.2022.132524

Author(s)

Rui Han
Yuyao Chen
Kaijie Gu
Dajun Wu
Quanliang Zhao
Lianwei Wang

Related Research Unit(s)

Detail(s)

Original language	English
Article number	132524
Journal / Publication	Materials Letters
Volume	323
Online published	26 May 2022
Publication status	Published - 15 Sept 2022

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2022.132524 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85131217055&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(d14a767e-3bbf-49a4-a44a-09efe567069a).html

Abstract

Three-dimensional metal oxides/Ni₃C structures (TiO₂/Ni₃C, CuO/Ni₃C, and WO₃/Ni₃C) are prepared in situ on the macroporous electrically conductive network (MECN) and the field emission (FE) characteristics are investigated systematically. The TiO₂/Ni₃C nanosheets deposited on MECN show the smallest turn-on and threshold fields of 1.30 V/μm and 1.69 V/μm, respectively, compared to CuO/Ni₃C and WO₃/Ni₃C. The excellent FE properties of TiO₂/Ni₃C/MECN arise from the low work function and change in hybridization from sp² to sp³ carbon atoms at the electron emission sites. In situ synthesis of TiO₂/Ni₃C is environmentally friendly, efficient, and compatible with microelectronics manufacturing boding well for application to high-performance FE and vacuum nanodevices.

Research Area(s)

Composite materials, Electrical properties, Field emission, MECN

Citation Format(s)

[ RIS ] [ BibTeX ]

In situ synthesis of 3D metal oxides/Ni₃C on the macroporous electrically conductive network for enhanced electron field emission. / Han, Rui; Chen, Yuyao; Gu, Kaijie et al.
In: Materials Letters, Vol. 323, 132524, 15.09.2022.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Han, R, Chen, Y, Gu, K, Wu, D, Zhao, Q, Wang, L & Chu, PK 2022, 'In situ synthesis of 3D metal oxides/Ni₃C on the macroporous electrically conductive network for enhanced electron field emission', Materials Letters, vol. 323, 132524. https://doi.org/10.1016/j.matlet.2022.132524

Han, R., Chen, Y., Gu, K., Wu, D., Zhao, Q., Wang, L., & Chu, P. K. (2022). In situ synthesis of 3D metal oxides/Ni₃C on the macroporous electrically conductive network for enhanced electron field emission. Materials Letters, 323, Article 132524. https://doi.org/10.1016/j.matlet.2022.132524

Han R, Chen Y, Gu K, Wu D, Zhao Q, Wang L et al. In situ synthesis of 3D metal oxides/Ni₃C on the macroporous electrically conductive network for enhanced electron field emission. Materials Letters. 2022 Sept 15;323:132524. Epub 2022 May 26. doi: 10.1016/j.matlet.2022.132524

Han, Rui ; Chen, Yuyao ; Gu, Kaijie et al. / In situ synthesis of 3D metal oxides/Ni₃C on the macroporous electrically conductive network for enhanced electron field emission. In: Materials Letters. 2022 ; Vol. 323.