Electronics & Semiconductors

Reduced heat leakage improves wearable health device

North Carolina State University engineers continue to improve the efficiency of a flexible device worn on the wrist that harvests heat energy from the human body to monitor health.

Energy & Green Tech

Smart devices to schedule electricity use may prevent blackouts

Power plants generate electricity and send it into power lines that distribute energy to nodes, or sites, where it can be used. But if the electricity load is more than the system's capacity, transmission can fail, leading ...

Energy & Green Tech

Making disorder for an ideal battery

The lithium batteries that power electronic devices and electric vehicles have a number of drawbacks. The electrolyte—the medium that enables electrons and positive charges to move between the electrodes—is a flammable ...

Electronics & Semiconductors

Thin and ultra-fast photodetector sees the full spectrum

Researchers have developed the world's first photodetector that can see all shades of light, in a prototype device that radically shrinks one of the most fundamental elements of modern technology.

Electronics & Semiconductors

Lightweight green supercapacitors could quickly charge devices

In a new study, researchers at Texas A&M University have described their novel plant-based energy storage device that could charge even electric cars within a few minutes in the near future. Furthermore, they said their devices ...

Energy & Green Tech

Wearable health tech gets efficiency upgrade

North Carolina State University engineers have demonstrated a flexible device that harvests the heat energy from the human body to monitor health. The device surpasses all other flexible harvesters that use body heat as the ...

Energy & Green Tech

Instant hydrogen production for powering fuel cells

Since the Industrial Revolution, the environmental impacts of energy have posed a concern. Recently, this has driven researchers to search for viable options for clean and renewable energy sources.

Engineering

A record-setting transistor

Many of the technologies we rely on, from smartphones to wearable devices and more, utilize fast wireless communications. What might we accomplish if those devices transmitted information even faster?

Energy & Green Tech

Li-ion batteries: Science 'directly into your hand'

They are omnipresent and essential to navigating modern life. Small, light, rechargeable: lithium ion batteries have revolutionised our world in less than three decades.

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