Research Bits: August 15


Using noise for spintronics Researchers from the Institute for Basic Science built a vertical magnetic tunneling junction device by sandwiching a few layers of vanadium in tungsten diselenide (V-WSe2), a magnetic material, between top and bottom graphene electrodes to create high-amplitude Random Telegraph Noise (RTN) signals. Through the resistance measurement experiments using these devic... » read more

A Solar Solution For Every Situation


Regardless of where they are used, energy conversion efficiency is paramount in solar power applications (if you are interested in their technical details, here is a blog post for you). Even small improvements reduce energy waste, decrease operating costs, lower spatial and cooling systems requirements, and much more. The semiconductor switches used in energy conversion in photovoltaic (... » read more

Energy Harvesting Starting To Gain Traction


Tens of billions of IoT devices are powered by batteries today. Depending on the compute intensity and the battery chemistry, these devices can run steadily for short periods of time, or they can run occasionally for decades. But in some cases, they also can either harvest energy themselves, or tap into externally harvested energy, allowing them to work almost indefinitely. Energy harvesting... » read more

A Novel Fundamental Frequency Switching Operation for Conventional VSI to Enable Single-Stage High-Gain Boost Inversion with ANN Tuned QWS Controller


Abstract "Single-stage high-gain inverters have recently gained much research focus as interfaces for inherent low voltage DC sources such as fuel cells, storage batteries, and solar panels. Many impedance-assisted inverters with different input stage configurations have been presented. To decrease passive component sizes, these inverters operate at high-frequency switching. The high-frequency... » read more

Making BaZrS3 Chalcogenide Perovskite Thin Films by Molecular Beam Epitaxy


Abstract: We demonstrate the making of BaZrS3 thin films by molecular beam epitaxy (MBE). BaZrS3 forms in the orthorhombic distorted-perovskite structure with corner-sharing ZrS6 octahedra. The single-step MBE process results in films smooth on the atomic scale, with near-perfect BaZrS3 stoichiometry and an atomically-sharp interface with the LaAlO3 substrate. The films grow epitaxially via tw... » read more

Next-Level Power Density In Solar And Energy Storage With Silicon Carbide MOSFETs


Latest generation silicon carbide semiconductors enable a significant increase in power conversion efficiency in solar power generation systems and associated energy storage. This white paper describes the applications and outlines how lower loss not only saves energy, but also results in smaller and lighter equipment with lower capital, installation and maintenance costs. Click here to read... » read more

Power/Performance Bits: July 27


Amplifying light for lidar Engineers at University of Texas at Austin and University of Virginia developed a light detector that can amplify weak light signals and reduce noise to improve the accuracy of lidar. "Autonomous vehicles send out laser signals that bounce off objects to tell you how far away you are. Not much light comes back, so if your detector is putting out more noise than th... » read more

Benefits Of SiC For String Inverters


SiC MOSFETs in solar and energy storage applications have clear benefits compared to silicon technologies, addressing the pressing need for energy and cost savings, particularly when bidirectional power conversion is required. Ease of installation is one of the key features of high-power solar string inverters. It is beneficial if only two workers are needed to carry and install the system.... » read more

Power/Performance Bits: Feb. 8


Transparent sensor Researchers at Osaka University created a thin, flexible, transparent sensor using silver nanowire networks. High-resolution printing was used to fabricate the centimeter-scale cross-aligned silver nanowire arrays, with reproducible feature sizes from 20 to 250 micrometers. As a proof-of-concept for functionality, they used their arrays to detect electrophysiological signals... » read more

Power/Performance Bits: Sept. 22


Drawing sensors on skin Researchers from the University of Houston and University of Chicago created an ink pen that can draw multifunctional sensors and circuits directly on skin. These "drawn-on-skin electronics" aim to provide more precise health data, free of the artifacts that are associated with wearable devices and flexible electronic patches. Caused when the sensor doesn't move prec... » read more

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