Asymmetric contacts or split gate geometries can be used to obtain rectification, electroluminescence (EL) and photocurrent from carbon nanotube field effect transistors. Here, we report devices with both split gates and asymmetric contacts and show that device parameters can be optimised with an appropriate split gate bias, giving the ability to select the rectification direction, modify the r...

A generic analytical model for the current–voltage characteristics of organic thin-film transistors (OTFTs) is derived. Based on this generic model, a TFT compact dc model that meets the requirements for compact modeling, including for computer circuit simulators, is proposed. The models are fully symmetrical, and the TFT compact dc model covers all regimes of TFT operation—linear and saturatio...

The p-i-n carbon nanotube (CNT) devices suffer from low ON/OFF current ratio and small saturation current. In this paper by band bending engineering, we improved the device performance of p-i-n CNT field effect transistors (CNTFET). A triple gate all around structure is proposed to manage the carrier transport along the channel. We called this structure multi-segment gate (MSG) CNTFET. Band to ...

We fabricated high standoff voltage ~450 V! Schottky rectifiers on hydride vapor phase epitaxy grown GaN on sapphire substrate. Several Schottky device geometries were investigated, including lateral geometry with rectangular and circular contacts, mesa devices, and Schottky metal field plate overlapping a SiO2 layer. The best devices were characterized by an ON-state voltage of 4.2 V at a curr...

When current transformer is saturated, mainly due to the presence of an exponentially decaying DC component in fault current, its secondary has a distinctive distorted waveform which significantly differs from primary (true) waveform. It leads underestimation value calculated by relay protection compared true value. Thus, turn, results trip time delay or even devices operation failure, since se...

Eddy-resolving ocean models suggest that the transport of Antarctic Circumpolar Current (ACC) may be insensitive to increasing wind. This insensitivity is due eddies flatten isopycnals and compensate for their wind-driven steepening. However, eddy-resolving do not accurately represent eddy dissipation processes occur at scales smaller than model resolution, including lee wave generation rough t...