Figure 4

The transmission spectra of the pristine SWCNT and Cu-chain-SWCNT over a designated bias window. The black-dashed lines represent the bias window: (a) 0.2 V; (b) 0.4 V; (c) 0.6 V; (d) 0.8 V and (e) 1.0 V.
The transmission spectra of the pristine SWCNT and Cu-chain-SWCNT over a designated bias window. The black-dashed lines represent the bias window: (a) 0.2 V; (b) 0.4 V; (c) 0.6 V; (d) 0.8 V and (e) 1.0 V.