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Conference Paper
Improving Electron Field Emission Using Transparent Graphene Gates
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- Authors
- Hyojin Jeon, Sora Park, Eunsol Go, Jeong-Woong Lee, Jun-Tae Kang, Young Chul Choi, Jae-Woo Kim, Jin-Woo Jeong, Ji-Hwan Yeon, Sunghee Kim, Yoon-Ho Song
- Issue Date
- 2016-10
- Citation
- International Vacuum Electron Sources Conference (IVESC) 2016, pp.1-2
- Language
- English
- Type
- Conference Paper
- Abstract
- A novel triode structure with a multi-layer graphene (MLG) gate was prepared to improve electron field emission characteristics. A relatively thick graphene, having layers of around 10 or slightly more, gave a robust MLG gate even on a wide aperture of 600 μm in diameter. The MLG gate induced field emission in a diode-like mode and then showed higher electron emission and narrower beam spreading than conventional aperture-gates. Of course, field-emitted electrons were easily modulated and passed through the MLG gate to the anode with little leakage, like in conventional gate modes. The MLG gate could provide ideal field emission properties by combining advantages both of diode and triode configurations required for electron source applications.
- KSP Keywords
- Beam spreading, Electron Emission, Electron field emission, Field emission characteristics, Triode structure, diode-like, electron source, field emission properties, multilayer graphene(MLG)