Low activation energy field-effect transistors fabricated by bar-assisted meniscus shearing

Field-effect transistors fabricated from diluted magnetic semiconductor colloidal nanowires.

Field-effect transistors (FETs) fabricated from undoped and Co(2+)-doped CdSe colloidal nanowires show typical n-channel transistor behaviour with gate effect. Exposed to microscope light, a 10 times current enhancement is observed in the doped nanowire-based devices due to the significant modification of the electronic structure of CdSe nanowires induced by Co(2+)-doping, which is revealed by ...

Nanoscale silicon field effect transistors fabricated using imprint lithography

We report the fabrication and characterization of nanoscale silicon field effect transistors using nanoimprint lithography. With this lithographic technique and dry etching, we have patterned a variety of nanoscale transistor features in silicon, including 100 nm wire channels, 250-nm-diam quantum dots, and ring structures with 100 nm ring width, over a 232 cm lithography field with good unifor...

Energy dissipation in graphene field-effect transistors.

We measure the temperature distribution in a biased single-layer graphene transistor using Raman scattering microscopy of the 2D-phonon band. Peak operating temperatures of 1050 K are reached in the middle of the graphene sheet at 210 kW cm(-2) of dissipated electric power. The metallic contacts act as heat sinks, but not in a dominant fashion. To explain the observed temperature profile and he...

Thin-film Single-walled Carbon Nanotube Transistors Fabricated Using Mechanical Meniscus Aligned Arrays by Vineet Nazareth

Diamond Field Effect Transistors

High-quality single crystal diamond has been used to demonstrate the RF performance of hydrogenterminated diamond field effect transistors of varying gate lengths; this includes the first data on a sub100nm diamond transistor. The RF performance for 220nm, 120nm and 50nm gate length transistors was extracted and a cut-off frequency of 55 GHz was measured for the 50nm device. This is the highest...