High-Performance Electron Field Emitters and Microplasma Cathodes Based on Conductive Hybrid Granular Structured Diamond Materials

Adhimoorthy Saravanan, Bohr Ran Huang, Divinah Manoharan, I. Nan Lin

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

High-performance diamond electron field emitters (EFEs) with extremely low turn-on field (E0 = 1.72 V/μm) and high current density (1.70 mA/cm2 at an applied field of 3.86 V/μm) were successfully synthesized by using a modified two-step microwave plasma chemical deposition process. Such emitters possess EFE properties comparable with most of carbon- or semiconductor-based EFE materials, but with markedly better lifetime stability. The superb EFE behavior of these materials was achieved owing to the reduction in the diamond-to-Si interfacial resistance and the increase in the conductivity of the bulk diamond films (HBD-400 V) via the applications of high bias voltage during the preparation of the ultrananocrystalline diamond (UNCD) primary layer and the subsequent plasma post-treatment (PPT) process, respectively. The superior EFE properties along with enhanced robustness of HBD-400 V films compared with the existing diamond-based EFE materials rendered these materials of greater potential for applications in high brightness display and multifunctional microplasma.

原文English
頁(從 - 到)4916-4925
頁數10
期刊ACS Applied Materials and Interfaces
9
發行號5
DOIs
出版狀態Published - 2017 2月 8

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)

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