Transparency of graphene for low-energy electrons measured in a vacuum-triode setup
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart (Germany)
Graphene, being an atomically thin conducting sheet, is a candidate material for gate electrodes in vacuum electronic devices, as it may be traversed by low-energy electrons. The transparency of graphene to electrons with energies between 2 and 40 eV has been measured by using an optimized vacuum-triode setup. The measured graphene transparency equals ∼60% in most of this energy range. Based on these results, nano-patterned sheets of graphene or of related two-dimensional materials are proposed as gate electrodes for ambipolar vacuum devices.
- OSTI ID:
- 22499233
- Journal Information:
- APL Materials, Vol. 3, Issue 7; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
- Country of Publication:
- United States
- Language:
- English
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