MORE POWER TO YOU
Engineers from the University of Utah and the University of Minnesota have discovered that interfacing two particular oxide-based materials makes them highly conductive, a boon for future electronics that could result in much more power-efficient laptops, electric cars and home appliances that also don’t need cumbersome power supplies.
Their findings were published this month in the scientific journal, APL Materials, from the American Institute of Physics.
The team led by University of Utah electrical and computer engineering assistant professor Berardi Sensale-Rodriguez and University of Minnesota chemical engineering and materials science assistant professor Bharat Jalan revealed that when two oxide compounds — strontium titanate (STO) and neodymium titanate (NTO) — interact with each other, the bonds between the atoms are arranged in a way that produces many free electrons, the particles that can carry electrical current. STO and NTO are by themselves known as insulators — materials like glass — that are not conductive at all.
But when they interface, the amount of electrons produced is a hundred times larger than what is possible in semiconductors. “It is also about five times more conductive than silicon [the material most used in electronics],” Sensale-Rodriguez says.
This innovation could greatly improve power transistors — devices in electronics that regulate the electrical current —by making power supplies much more efficient for items ranging from televisions and refrigerators to handheld devices, Sensale-Rodriguez says. Today, electronics manufacturers use a material called gallium nitride for transistors in power supplies and other electronics that carry large electrical currents. But that material has been explored and optimized for many years and likely cannot be made more efficient. In this discovery made by the Utah and Minnesota team, the interface between STO and NTO can be at the very least as conductive as gallium nitride and likely will be much more in the future.
“When I look at the future, I see that we can perhaps improve conductivity by an order of magnitude through optimizing of the materials growth,” Jalan says. “We are bringing the possibility of high power, low energy oxide electronics closer to reality.”
Power transistors that use this combination of materials could lead to smaller devices and appliances because their power supplies would be more energy efficient. Laptop computers, for example, could ditch the bulky external power supplies — the big black boxes attached to the power cords — in favor of smaller supplies that are instead built inside the computer. Large appliances that consume a lot of electricity such as air conditioners could be more power efficient. And because there is less power wasted (wasted electricity usually dissipates into heat), these devices will not run as hot as before, says Sensale-Rodriguez. He also believes that if more electronics use these materials for transistors, collectively it could save significant amounts of electricity for the country.
“It’s fundamentally a different road toward power electronics, and the results are very exciting” he says. “But we still need to do more research.”
Co-authors on the paper also include: University of Utah electrical and computer engineering professor Ajay Nahata; U graduate students Sara Arezoomandan, Hugo Condori Quispe, Ashish Chanana; and Minnesota graduate student Peng Xu. The work at University of Minnesota is funded by the Air Force Young Investigator Research Program, and the work in Utah is primarily supported by the National Science Foundation’s Materials Research Science and Engineering Center at the University of Utah.
A copy of the paper can be viewed at: http://scitation.aip.org/content/aip/journal/aplmater/4/7/10.1063/1.4959284
Learn more: MORE POWER TO YOU
The Latest on: Power electronics
via Google News
The Latest on: Power electronics
Electric Vehicle Power Electronics Market with Thriving CAGR in Forecast Period 2019 to 2026
on April 18, 2019 at 4:11 am
Apr 18, 2019 (Global QYResearch via COMTEX) -- The new research from Global QYResearch on Global Electric Vehicle Power Electronics Market Report for 2019 intends to offer target audience with the ... […]
Navitas Presents Industry-Leading GaNFast™ Charging Technology at Premier European Power Electronics Conference
on April 17, 2019 at 6:00 am
EL SEGUNDO, Calif., April 17, 2019 /PRNewswire-PRWeb/ -- Navitas Semiconductor today announced it will present the latest in GaNFast power IC advances and leading-edge end-customer examples at this ... […]
Film Capacitors: Characteristics and uses in power applications
on April 17, 2019 at 5:00 am
Engineers designing power electronics find that capacitors are needed for several functions, from energy storage to filters and decoupling. Different capacitor types are available, that at first sight ... […]
Power Electronics Market Worth Around 57.5 Billion USD by 2025 with Moderate CAGR 5.8 Percent in Global Market
on April 17, 2019 at 2:17 am
According to Ameco Research, the Global Power Electronics Market is projected to grow at moderate CAGR of around 5.8% over the forecast period and market size will reach worth around 57.5 Billion US$ ... […]
Automotive Power Electronics Market 2019 Size, Trends, Share, Growth Analysis, Opportunity, Competitive, And Regional Forecast To 2023
on April 11, 2019 at 2:38 am
Apr 11, 2019 (Heraldkeeper via COMTEX) -- Automotive Power Electronics Market to Grow At 5.12% CAGR by 2023, according Global Automotive Power Electronics Market 2019 Global Industry Forecast To 2023 ... […]
Richardson RFPD Launches GaN & SiC for Power Electronics Tech Hub
on April 8, 2019 at 6:38 am
Microsite features latest news, product releases and technical resources to support the rapid transition of power conversion applications to GaN and SiC technologies April 5, 2019 – Geneva, Ill.: ... […]
New material discovered to power electronics in new ways
on April 1, 2019 at 3:51 am
The functionality of electronics are set to improve due to the discovery of a new material. The material can function in two different ways, simplifying the number of materials required to be used in ... […]
Power Electronics Market 2019 Historical Analysis, Leading Growt - WBOC-TV 16, Delmarvas News Leader, FOX 21 -
on March 20, 2019 at 12:35 am
The report on the global Power Electronics market covers historical market trends, current market dynamics, market valuation by segmentation as well as region, country-level analysis for every segment ... […]
Researchers discover new material to help power electronics
on March 19, 2019 at 6:40 am
Scientists have discovered a way to simplify how electronic devices use those electrons -- using a material that can serve dual roles in electronics, where historically multiple materials have been ... […]
Power Electronics Design with NI Multisim
on March 18, 2019 at 5:00 pm
NI Multisim is a powerful tool used to simulate and prototype power electronics circuit designs. Multisim has large database of configurable power component modelse along with existing SPICE models ... […]
via Bing News