Transparency of graphene for low-energy electrons measured in a vacuum-triode 
setup

Hassink, G.; Wanke, R.; Rastegar, I.; Braun, W.; Stephanos, C.; Herlinger, P.; Smet, J. H.; Mannhart, J.

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Transparency of graphene for low-energy electrons measured in a vacuum-triode setup

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Braun, W.
Department Solid State Quantum Electronics (Jochen Mannhart), Max Planck Institute for Solid State Research, Max Planck Society;

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Smet, J. H.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society;

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Mannhart, J.
Department Solid State Quantum Electronics (Jochen Mannhart), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Hassink, G., Wanke, R., Rastegar, I., Braun, W., Stephanos, C., Herlinger, P., et al. (2015). Transparency of graphene for low-energy electrons measured in a vacuum-triode setup. APL Materials, 3(7): 076106.

Cite as: https://hdl.handle.net/21.11116/0000-000E-CB98-2

Abstract

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 similar to 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. (C) 2015 Author(s).