• 10 mins Oil Gains Spur Growth In Canada’s Oil Cities
  • 55 mins China To Take 5% Of Rosneft’s Output In New Deal
  • 1 hour UAE Oil Giant Seeks Partnership For Possible IPO
  • 2 hours Planting Trees Could Cut Emissions As Much As Quitting Oil
  • 3 hours VW Fails To Secure Critical Commodity For EVs
  • 4 hours Enbridge Pipeline Expansion Finally Approved
  • 5 hours Iraqi Forces Seize Control Of North Oil Co Fields In Kirkuk
  • 6 hours OPEC Oil Deal Compliance Falls To 86%
  • 21 hours U.S. Oil Production To Increase in November As Rig Count Falls
  • 23 hours Gazprom Neft Unhappy With OPEC-Russia Production Cut Deal
  • 1 day Disputed Venezuelan Vote Could Lead To More Sanctions, Clashes
  • 1 day EU Urges U.S. Congress To Protect Iran Nuclear Deal
  • 1 day Oil Rig Explosion In Louisiana Leaves 7 Injured, 1 Still Missing
  • 1 day Aramco Says No Plans To Shelve IPO
  • 4 days Trump Passes Iran Nuclear Deal Back to Congress
  • 4 days Texas Shutters More Coal-Fired Plants
  • 4 days Oil Trading Firm Expects Unprecedented U.S. Crude Exports
  • 4 days UK’s FCA Met With Aramco Prior To Proposing Listing Rule Change
  • 4 days Chevron Quits Australian Deepwater Oil Exploration
  • 5 days Europe Braces For End Of Iran Nuclear Deal
  • 5 days Renewable Energy Startup Powering Native American Protest Camp
  • 5 days Husky Energy Set To Restart Pipeline
  • 5 days Russia, Morocco Sign String Of Energy And Military Deals
  • 5 days Norway Looks To Cut Some Of Its Generous Tax Breaks For EVs
  • 5 days China Set To Continue Crude Oil Buying Spree, IEA Says
  • 5 days India Needs Help To Boost Oil Production
  • 5 days Shell Buys One Of Europe’s Largest EV Charging Networks
  • 5 days Oil Throwback: BP Is Bringing Back The Amoco Brand
  • 5 days Libyan Oil Output Covers 25% Of 2017 Budget Needs
  • 5 days District Judge Rules Dakota Access Can Continue Operating
  • 6 days Surprise Oil Inventory Build Shocks Markets
  • 6 days France’s Biggest Listed Bank To Stop Funding Shale, Oil Sands Projects
  • 6 days Syria’s Kurds Aim To Control Oil-Rich Areas
  • 6 days Chinese Teapots Create $5B JV To Compete With State Firms
  • 6 days Oil M&A Deals Set To Rise
  • 6 days South Sudan Tightens Oil Industry Security
  • 7 days Over 1 Million Bpd Remain Offline In Gulf Of Mexico
  • 7 days Turkmenistan To Spend $93-Billion On Oil And Gas Sector
  • 7 days Indian Hydrocarbon Projects Get $300 Billion Boost Over 10 Years
  • 7 days Record U.S. Crude Exports Squeeze North Sea Oil
How OPEC Continues To Cheat On Its Own Deal

How OPEC Continues To Cheat On Its Own Deal

OPEC oil production has once…

Hyper-cold Electrons Could Mean Drastic Energy Savings

Scientists in Texas have found a method of cooling electrons to nearly absolute zero, and they’ve done it at room temperature. Their discovery could lead to electronic devices that need only about one-tenth as much energy as they do today, thereby dramatically reducing the size and weight of batteries.

“We are the first to effectively cool electrons at room temperature,” said Seong Jin Koh, an associate professor at the Materials Science and Engineering Department at the University of Texas (UT) at Arlington. “Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath.”

Related: Putting A New Spin On Conducting Electricity

Now, Koh says, there’s no need for using liquid nitrogen or liquid helium in the process. In fact, he says, electrons in a chip, for instance, can undergo a natural process of thermal excitation, which heats them up, at an ambient temperature of about 70 degrees Fahrenheit, or room temperature. Likewise, he says, a room-temperature chip can cool them down too.

The chip in question is equipped with a nanoscale structure with several microscopic components, including what’s known as a “quantum well,” to suppress the excitation of the electrons, cooling them off.

Koh says cold electrons are the pathway to a new kind of transistor that requires very little energy to operate, and he adds, “Implementing our findings to fabricating energy-efficient transistors is currently under way.”

The team’s research, published Sept. 10 in Nature Communications, explains that a quantum well is a minuscule gap between two semiconducting materials. Electrons moving along the semiconductors reach this gap and try to enter it. But to do so they must have very low energy, that is, they must be very, very cold. Warmer electrons cannot enter the well.

The electrons that are admitted to the quantum well aren’t merely very cold; their temperature has been brought down to -378.4 degrees Fahrenheit, or a mere 81.29 degrees Fahrenheit above absolute zero, the temperature at which all molecular activity slams to a halt.

A quantum well carrying a stream of electrons can now take on added elements like transistors. The researchers at UT Arlington created some transistors with just one electron, called single-electron transistors (SETs), attached them to the quantum well, and the SETs worked, thanks to the ultra-cold electrons in the well.

Related: Breakthrough Microbattery Charges 1,000 Times Faster than Competing Technology

“These research findings could potentially reduce energy consumption of electronic devices by more than 10 times compared to the present technology,” says Usha Varshney, the program director in the National Science Foundation’s Directorate for Engineering, which funded the research. “Personal electronic devices such as smart phones … can last much longer before recharging.”

Varshney says today’s batteries also can be reduced in size and weight, two of their most significant liabilities. This would make the UT Arlington research valuable not only for consumer devices but also for military applications such as drones, remote sensors and even complex computing in remote locations.

By Andy Tully of Oilprice.com

More Top Reads From Oilprice.com:

Nanotech Solar Cooling Panels Reduce Need for Air-Con
Taking The Ion Out Of Lithium-ion To Increase Power Storage
The Evolution of Nanotechnology Offers Great Hope for Energy Sector



Join the discussion | Back to homepage

Leave a comment

Leave a comment

Oilprice - The No. 1 Source for Oil & Energy News