Microplasma illumination enhancement of vertically aligned conducting ultrananocrystalline diamond nanorods

Author:

Sankaran Kamatchi Jothiramalingam,Kunuku Srinivasu,Lou Shiu-Cheng,Kurian Joji,Chen Huang-Chin,Lee Chi-Young,Tai Nyan-Hwa,Leou Keh-Chyang,Chen Chulung,Lin I-Nan

Abstract

Abstract Vertically aligned conducting ultrananocrystalline diamond (UNCD) nanorods are fabricated using the reactive ion etching method incorporated with nanodiamond particles as mask. High electrical conductivity of 275 Ω·cm−1 is obtained for UNCD nanorods. The microplasma cavities using UNCD nanorods as cathode show enhanced plasma illumination characteristics of low threshold field of 0.21 V/μm with plasma current density of 7.06 mA/cm2 at an applied field of 0.35 V/μm. Such superior electrical properties of UNCD nanorods with high aspect ratio potentially make a significant impact on the diamond-based microplasma display technology.

Publisher

Springer Science and Business Media LLC

Subject

Condensed Matter Physics,General Materials Science

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