Abstract
Advances in nanofabrication techniques have underpinned the recent growing interest in vacuum channel transistors due to their ability to showcase ballistic transport and immunity to most radiations. However, the geometry of the electrodes plays an important role in the overall performance and efficiency of the device. Several studies on the geometry of the source electrode have been carried out because of its role in enhancement of the local electric field, which triggers electron tunneling, yet the geometry of the drain electrode has been neglected. Here, we propose a new planar vacuum channel transistor with gold electrodes. Our study shows that the unique geometrical design of the device leads to high collection efficiency. Furthermore, it reveals the importance of the geometry of the drain on device performance. Emission characteristics of the device and the effect of geometrical parameters such as channel length and source geometry on its performance have also been investigated.
Highlights
Owing to the recent progress in nanotechnology, nanoscale Field Effect Transistors (FETs) have found applications in logic, memory, synaptic,1,2 epidermal,3–5 light emitting,6 and sensing devices as pressure,7 humidity,8 gas,9 tactile,10 and biological11–13 sensors
The linear behavior of the plot shows that the total current follows the FN equation, that is, almost all electrons are collected by the drain, and the collection efficiency is high
We present a new vacuum channel field effect transistor
Summary
Owing to the recent progress in nanotechnology, nanoscale Field Effect Transistors (FETs) have found applications in logic, memory, synaptic, epidermal, light emitting, and sensing devices as pressure, humidity, gas, tactile, and biological sensors. In such devices, shorter channel length is desirable for faster operation as it leads to shorter carrier propagation time. Shorter channel length means lower operation voltage and lower probability of ionization of air molecules These advantages have attracted attention from scientists, and many studies have recently been carried out on VCTs.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
