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

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

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

Detail(s)

Original languageEnglish
Article number132524
Journal / PublicationMaterials Letters
Volume323
Online published26 May 2022
Publication statusPublished - 15 Sep 2022

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)

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; Wu, Dajun; Zhao, Quanliang; Wang, Lianwei; Chu, Paul K.

In: Materials Letters, Vol. 323, 132524, 15.09.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review