“This kind of transistor should be able to reduce energy consumption in mobile phones and computers, for example, so they wouldn’t have to be recharged so often. What’s more, it can pave the way for communicating in frequencies that are too high for today’s technology,” says Lars-Erik Wernersson, professor of solid state physics at the Faculty of Engineering, Lund University, in Sweden.
For some time researchers have been stymied by the fact that transistors can’t be reduced any further in size without overheating, since the electrons release so much energy.
“But our model is made up of indium arsenide, where the electrons move more easily compared with silicon, the conventional semiconductor material in transistors. Actually, it’s hard to produce transistors with indium arsenide, but if we apply nanotechnology, it’s rather simple,” explains Lars-Erik Wernersson.
The transistor is thus constructed using nanotechnology. According to Lars-Erik Wernersson, this means that the material is self-organized according to a bottom-up principle instead of being “carved out,” which is the conventional method.
Ultimately Lars-Erik Wernersson and his colleagues also hope to develop transistors that can communicate in entirely new frequency areas. Today’s electric appliances use 3–10 gigahertz. The hope is to reach 60 GHz, which is a considerably broader frequency range.
“With 60 GHz you can only communicate across short differences and not through walls, for instance. But this new frequency range can rationalize wireless communication in the home, for example when you download a film or communicate between TVs and projectors. We know for sure that such electric appliances will be integrated more and more in the future,” he adds.
There are other scientists in the world working with similar research-at IBM in the U.S., for example-but these Swedish researchers have made the most progress in this field.
Recently Lars-Erik Wernersson was informed he would receive SEK 24.5 million from the Swedish Foundation for Strategic Research to develop new wireless circuits using nanotechnology. The newly developed transistor technology will serve as the basis for the new circuits. The transistor has been partly developed in collaboration with the spin-off company QuNano.
Information integration and artificial intelligence for better diagnosis and therapy decisions
24.05.2017 | Fraunhofer MEVIS - Institut für Bildgestützte Medizin
World's thinnest hologram paves path to new 3-D world
18.05.2017 | RMIT University
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy