semiconductor tagged posts

Liquid Metals come to the Rescue of Semiconductors

New deposition approach: synthesising and exfoliating (transferring onto a silicon substrate for example) 2D semiconducting MoS2

Possible pathway to fast-switching, ultra-low energy electronics based on 2D materials. Two-dimensional semiconductors offer a possible solution to the limited potential for further shrinking traditional silicon-based electronics: the long-predicted end of ‘Moore’s Law’. 2D-based electronics, which could eliminate wasted dissipation of heat and allow for very fast, ultra-low energy operation, could be enabled by a new liquidmetal deposition technique.

Moore’s law is an empirical suggestion describing that the number of transistors doubles every few years in integrated circuits (ICs)...

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Measuring a Tiny Quasiparticle is a major step forward for Semiconductor Technology

PL spectra of BN encapsulated monolayer WSe2 at 4.2 K. Credit: Nature Communications (2020). DOI: 10.1038/s41467-020-16934-x

A team of researchers led by Sufei Shi, an assistant professor of chemical and biological engineering at Rensselaer Polytechnic Institute, has uncovered new information about the mass of individual components that make up a promising quasiparticle, known as an exciton, that could play a critical role in future applications for quantum computing, improved memory storage, and more efficient energy conversion.

Published today in Nature Communications, the team’s work brings researchers one step closer to advancing the development of semiconductor devices by deepening their understanding of an atomically thin class of materials known as transitional metal dichal...

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Researchers Resolve a Major Mystery in 2D Material Electronics

Schematic drawing of a 2D-material-based lateral (left) and vertical (right) Schottky diode. For broad classes of 2D materials, the current-temperature relation can be universally described by a scaling exponent of 3/2 and 1, respectively, for lateral and vertical Schottky diodes. Credit: Singapore University of Technology and Design

Schematic drawing of a 2D-material-based lateral (left) and vertical (right) Schottky diode. For broad classes of 2D materials, the current-temperature relation can be universally described by a scaling exponent of 3/2 and 1, respectively, for lateral and vertical Schottky diodes.
Credit: Singapore University of Technology and Design

A one-size-fits-all master equation shall pave the way towards better design of 2D material electronics. Schottky diode is composed of a metal in contact with a semiconductor. Despite its simple construction, Schottky diode is a tremendously useful component and is omnipresent in modern electronics...

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Atomically thin LED opens the possibility for ‘invisible’ displays

Gif of the device in action. Probes inject positive and negative charges in the light emitting device, which is transparent under the campanile outline, producing bright light. Credit: Javey lab

Gif of the device in action. Probes inject positive and negative charges in the light emitting device, which is transparent under the campanile outline, producing bright light. Credit: Javey lab

UC Berkeley engineers have built a bright-light emitting device that is millimeters wide and fully transparent when turned off. The light emitting material in this device is a monolayer semiconductor, just 3 atoms thick. The device opens the door to invisible displays on walls and windows – displays that would be bright when turned on but see-through when turned off – or in futuristic applications such as light-emitting tattoos, according to the researchers...

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