Figure 19. (A) Current versus bias voltage with -9.5 V gating. (B through E) Band diagrams show the transport mechanisms. The symbols in B to E match the ones in A with certain bias voltages. Reprinted with permission from [164], C. W. Zhou et al., Science 290, 1552 (2000). © 2000, American Association for the Advancement of Science.

intra-SWNT Esaki diode. Band diagrams of Figure 19B to E are shown at different bias voltage regions. NDC due to resonant tunneling was observed. At room temperature NDC is not obvious.

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