News

New Class of ‘Soft’ Semiconductors Could Transform HD Displays

A new type of semiconductor may be coming to a high-definition display near you. Scientists at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have shown that a class of semiconductor called halide perovskites can emit multiple, bright colors from a single nanowire at resolutions as small as 500 nanometers. The findings represent a clear challenge to quantum dot displays that rely upon traditional semiconductor nanocrystals to emit light. It could also influence the development of new applications in optoelectronics, photovoltaics, nanoscopic lasers, and ultrasensitive photodetectors, among others.

Posted in: News, Materials, Photonics, Semiconductors & ICs
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'Magic' Alloy Could Spur Next Generation of Solar Cells

In what could be a major step forward for a new generation of solar cells called "concentrator photovoltaics," University of Michigan researchers have developed a new semiconductor alloy that can capture the near-infrared light located on the leading edge of the visible light spectrum. Easier to manufacture and at least 25 percent less costly than previous formulations, it's believed to be the world's most cost-effective material that can capture near-infrared light—and is compatible with the gallium arsenide semiconductors often used in concentrator photovoltaics.

Posted in: News, Materials, Photonics, Semiconductors & ICs
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Will the smart grid become a reality?

Today’s lead INSIDER story featured a new building block for the smart grid: a solid-state transformer."

The SST is a fundamental building block in the smart-grid concept," said NC State Distinguished Professor Iqbal Husain. "It can scale down voltage for use in homes and businesses, but it can also scale up voltage from solar panels or other residential-scale renewable sources in order to feed that power back into the grid."

What do you think? Will the smart grid become a reality?

Posted in: Question of the Week
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'Smart' Transformer Supports Power Grid of Tomorrow

Imagine a system that handles electricity flow not just from the power company to our homes, but also back from our homes to the power company. North Carolina State University researchers say an existing technology – the solid-state transformer — could make the conceptual "smart grid" a reality.

Posted in: News, Power Management, Power Supplies, Energy, Energy Efficiency, Energy Harvesting, Energy Storage, Renewable Energy
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Sound-Off: How to Simulate the Impacts of an Exoskeleton

Over the past decade, warfighters’ personal loads have increased, leading to more injuries, pain, and discomfort. To relieve the burden, the military is investigating performance-enhancing exoskeletons. But how does an exoskeleton impact the soldier wearing it?

Posted in: News, News, Computer-Aided Design (CAD), Simulation Software, Software
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Sound-Off: How to Set Pass/Fail Thresholds for Self-Driving Vehicles

As Advanced Driver Assistance System (ADAS) technology evolves, how do you test autonomous cars that ‘learn from their mistakes?’

Posted in: News, Automotive, Instrumentation, Measuring Instruments, Test & Measurement
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What’s New on Tech Briefs: Smart Devices, Powered by the Sun

New stories on TechBriefs.com shed light on smart windows, solar paint, and more.

Posted in: News, Solar Power
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Smart Windows Get Smarter (and Self-Powered)

A “smart window” from Princeton University uses a transparent solar cell to selectively absorb and harvest near-ultraviolet light. The advanced window controls the transmission of visible light and infrared heat into the building, while the new type of solar cell uses near-UV light to power the system.

Posted in: News, Energy, Energy Harvesting, Energy Storage, Renewable Energy, Solar Power
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Could lenses and thick cameras become obsolete?

A team at the California Institute of Technology designed a lens-less camera. "Once scaled up, this technology can make lenses and thick cameras obsolete," said graduate student and camera researcher Behrooz Abiri. What do you think? Could lenses and thick cameras become obsolete?

Posted in: Question of the Week, Cameras, Imaging
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Sound-Off: Can Hydrogen be Stored in Carbon Nanotubes?

The fuel cell, an increasingly popular device in the automotive sector, creates a power source when coupled with hydrogen. The hydrogen can be made from natural gas or electrolysis of water and then compressed for storage. The challenge: How do you store hydrogen at low pressure?

Posted in: News, Energy Storage, Power Transmission, Propulsion
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