The Battery Problem


The fires sweeping the West Coast of the United States point to the need for a whole different way of managing power on both a macro and a micro level. Since the millennium, the power demand from data centers and from mobile devices has been climbing steadily. There are roughly 7.8 billion people on the planet, up from 6.115 billion people in 2000, according to the World Bank. Many of them o... » read more

Power/Performance Bits: Sept. 1


Cooling sensors with lasers Researchers at the University of Washington developed a way to cool a solid semiconductor sensor component with an infrared laser. The laser was able to cool the solid semiconductor by at least 20 degrees C, or 36 F, below room temperature. The device uses a cantilever, similar to a diving board, that can oscillate in response to thermal energy at room temperatur... » read more

Power/Performance Bits: June 16


One-directional optical Researchers from University of Pennsylvania, Peking University and Massachusetts Institute of Technology developed a design for optical devices that radiate light in only one direction, which could reduce energy consumption in optical fiber networks and data centers. Light tends to flow in a single direction optical fibers, but while most of the light passing through... » read more

Power/Performance Bits: June 8


High temp capacitor Researchers at Pennsylvania State University doped a dielectric capacitor to increase storage capacity while also increasing electric charge efficiency, enabling the capacitor to withstand greater voltage with very little energy loss at temperatures higher than 300 degrees Fahrenheit. “What we have done is to use interface effects in nano-dopants to increase both the stor... » read more

Power/Performance Bits: May 19


Neuromorphic magnetic nanowires Researchers from the University of Texas at Austin, University of Texas at Dallas, and Sandia National Laboratory propose a neuromorphic computing method using magnetic components. The team says this approach can cut the energy cost of training neural networks. "Right now, the methods for training your neural networks are very energy-intensive," said Jean Ann... » read more

Power/Performance Bits: April 14


Undoped polymer ink Researchers at Linköping University, Chalmers University of Technology, University of Washington, University of Cologne, Chiba University, and Yunnan University developed an organic ink for printable electronics that doesn't need to be doped for good conductivity. "We normally dope our organic polymers to improve their conductivity and the device performance. The proces... » read more

Power/Performance Bits: March 31


Tellurium transistors Researchers from Purdue University, Washington University in St Louis, University of Texas at Dallas, and Michigan Technological University propose the rare earth element tellurium as a potential material for ultra-small transistors. Encapsulated in a nanotube made of boron nitride, tellurium helps build a field-effect transistor with a diameter of two nanometers. �... » read more

Power/Performance Bits: March 9


Healing perovskites Researchers at Brown University found that while perovskite solar cells can crack easily, they are also capable of healing those cracks. "The efficiency of perovskite solar cells has grown very quickly and now rivals silicon in laboratory cells," said Nitin Padture, a professor in Brown's School of Engineering and director of Brown's Institute for Molecular and Nanoscale... » read more

Power/Performance Bits: Jan. 13


Ferroelectric memory Researchers at the Moscow Institute of Physics and Technology and North Carolina State University developed a ferroelectric memory cell and a method for measuring the electric potential distribution across a ferroelectric capacitor, an important aspect of creating new nonvolatile ferroelectric devices. The team's new ferroelectric memory cell is made from a 10nm thick z... » read more

Power/Performance Bits: Dec. 9


Solar capture and storage Researchers at the University of Houston developed a device capable of both capturing and storing solar energy. Unlike solar panels and solar cells, which rely on photovoltaic technology for the direct generation of electricity, the hybrid device captures heat from the sun and stores it as thermal energy. The device combines molecular energy storage and latent heat... » read more

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