Hysterisis in the current-voltage curses as well as variability in the threshold voltage remain to be solved.
2.
The metallic nature of graphene and its high conductivity were accompanied by a lack of hysterisis and no mechanism to switch conduction off.
3.
Hysterisis in the current-voltage curves as well as variability in the threshold voltage are issues that remain to be solved on the way to nanotube-enabled OTFT backplanes for flexible displays.
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