Overcoming hysteresis in carbon nanotube field effect transistors

Researchers present a facile approach to overcoming hysteresis to less than 0.5% of the gate-source voltage sweep range: rather than to eliminate traps, they aim to reduce the effect that traps have on the CNTs.

Strong hydrogels that respond to force, heat and light

Novel hydrogels not only exhibited remarkable optical response from pale yellow to purple color and from green to red fluorescence under external stimuli of force, heat, and UV light, but also simply reversed its color back to the original one by white light.