Citizens' Issues
Indian-origin engineer discovers ground breaking 2D semi-conducting material
New York : A team led by an Indian-origin engineer from the University of Utah has discovered a new kind of 2D semi-conducting material for electronics that opens the door for much speedier computers and smartphones that consume a lot less power.
 
The semi-conductor, made of the elements tin and oxygen or tin monoxide (SnO) by the associate professor Ashutosh Tiwari-led team is a layer of 2D material only one atom thick, allowing electrical charges to move through it much faster than conventional 3D materials such as silicon. 
 
This material could be used in transistors, the lifeblood of all electronic devices such as computer processors and graphics processors in desktop computers and mobile devices. 
 
Transistors and other components used in electronic devices are currently made of 3D materials such as silicon and consist of multiple layers on a glass substrate. 
 
But the downside to 3D materials is that electrons bounce around inside the layers in all directions.
 
“The benefit of 2D materials is that the material is made of one layer the thickness of just one or two atoms. Consequently, the electrons can only move in one layer so it's much faster,” Tiwari said.
 
Transistors made with Tiwari's semi-conducting material could lead to computers and smartphones that are over 100 times faster than regular devices. 
 
“Because the electrons move through one layer instead of bouncing around in a 3D material, there will be less friction, meaning the processors will not get as hot as normal computer chips,” the authors noted. 
 
They will also require much less power to run, a boon for mobile electronics that have to run on battery power. 
 
According to Tiwari, this could be especially important for medical devices such as electronic implants that will run longer on a single battery charge.
 
Now that Tiwari and his team have discovered this new 2D material, it can lead to the manufacturing of transistors that are even smaller and faster than those in use today. 
 
A computer processor is comprised of billions of transistors, and the more transistors packed into a single chip, the more powerful the processor can become.
 
“The field is very hot right now and people are very interested in it," Tiwari said, adding that in two or three years, we should see at least some prototype device.
 
The paper describing the material was published in the journal Advanced Electronic Materials. 
 
Disclaimer: Information, facts or opinions expressed in this news article are presented as sourced from IANS and do not reflect views of Moneylife and hence Moneylife is not responsible or liable for the same. As a source and news provider, IANS is responsible for accuracy, completeness, suitability and validity of any information in this article.

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Australian mining company finds 404-carat diamond
Perth : A West Australian mining firm has found a record breaking 404-carat diamond believed worth over $14 million.
 
According to reports on Tuesday, the Lucapa Diamond Company, based in Perth but operating in the African nation of Angola, found the 404-carat diamond at its Lulo Diamond Project site, with estimates putting it as the 27th largest diamond ever found, Xinhua news agency reported.
 
The company's chairman, Miles Kennedy, said that the diamond ticked off a "number of firsts" for diamond exploration.
 
"When we first looked at the property, 3,000 sq.km of untouched ground, 700 km inland from the coast, you are talking about a very, very remote area," Kennedy said.
 
"It's the biggest diamond ever recorded from the country of Angola and it's the biggest diamond ever recovered by an Australian diamond miner," he said.
 
The chairman said selling that diamond alone would allow the company to expand its Angola operations.
 
The largest ever 3,167-carat diamond "Sergio" was found in Brazil in 1893.
 
Disclaimer: Information, facts or opinions expressed in this news article are presented as sourced from IANS and do not reflect views of Moneylife and hence Moneylife is not responsible or liable for the same. As a source and news provider, IANS is responsible for accuracy, completeness, suitability and validity of any information in this article.

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39 trapped after gas explosion in Russia building
Moscow : At least one person was killed and 39 were reported trapped after a powerful gas explosion triggered the collapse of a five-storey residential building in Russia's Yaroslavl city early Tuesday.
 
Preliminary information showed that about 10 flats on the first to fifth floors of a single unit of the residential structure fell apart in the blast, the Russian emergency situations ministry said.
 
Up to 39 people were estimated to be buried in the rubble, according to the ministry, which added that fire fighters had rushed to the site for search and rescue operations after being alerted at 4.20 a.m., Xinhua news agency reported.
 
The ministry estimated that between seven-20 people could have been in the building at the time of the incident. Out of those officially registered in the ten apartments, 13 are reported to be minors.
 
So far, four people have been rescued from the debris, RT news reported. 
 
All of those rescued reportedly suffered serious injuries and fractures and were hospitalised in a critical condition.
 
The explosion did not trigger any big fire, but authorities cautioned that they could not rule out the possibility of further collapse of the building. 
 
The ministry warned of more casualties.
 
Disclaimer: Information, facts or opinions expressed in this news article are presented as sourced from IANS and do not reflect views of Moneylife and hence Moneylife is not responsible or liable for the same. As a source and news provider, IANS is responsible for accuracy, completeness, suitability and validity of any information in this article.

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