Journal
APPLIED PHYSICS LETTERS
Volume 98, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3549868
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- Singapore MOE [2008-T2-01-033]
- USA AFOSR AOARD [10-4110]
- USA ONRG [N62909-10-1-7135]
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The one-dimensional (1D) classical Child-Langmuir (CL) law has been extended to the Coulomb blockade (single to few electrons) regime, including the effect of single-electron charging. It is found that there is a threshold of voltage (V-th) equals to one-half of the single-electron charging energy for electron injection assuming zero barrier at the interface. For voltage in the range of 1 < V/V-th < 2, there is only one electron inside the gap, and the time-averaged single-electron injected current is equal or higher than the 1D CL current. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3549868]
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