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Microplasma illumination enhancement of vertically aligned conducting ultrananocrystalline diamond nanorods |
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| Authors: | Kamatchi Jothiramalingam Sankaran Srinivasu Kunuku Shiu-Cheng Lou Joji Kurian Huang-Chin Chen Chi-Young Lee Nyan-Hwa Tai Keh-Chyang Leou Chulung Chen I-Nan Lin |
| Affiliation: | 1.Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 300, Republic of China;2.Department of Engineering and System Science, National Tsing-Hua University, Hsinchu, Taiwan 300, Republic of China;3.Department of Photonics Engineering, Yuan Ze University, Chung-Li, Taiwan 32003, Republic of China;4.Department of Physics, Tamkang University, Tamsui, Taiwan 251, Republic of China |
| 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. |
| Keywords: | Ultrananocrystalline diamond nanorods Reactive ion etching Microplasma Electron field emission properties |