IoT tagged posts

Moisture-driven tech can power green batteries—and destroy spy gear

Mystery solved: The physics behind next-generation Janus semiconductors
An image of the Janus formation reaction in which the outermost chalcogen atom in an atomic layer material is replaced by another chalcogen atom with the support of electron accumulation. Credit: Toshiaki Kato

Researchers from North Carolina State University and Rice University have created a nontoxic, stretchable battery that operates by extracting moisture from the ambient environment—even in climates as dry as the desert. The batteries could be useful in Internet of Things (IoT) applications ranging from wearables to advanced surveillance monitors with built-in kill switches. The study is published in the journal Science Advances.

Emerging technologies like wearable monitors, miniature robotics and other IoT devices require lightweight, flexible power sources...

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Powering the future: Advanced Energy Harvesting for loT Devices

Researchers have developed a high-performance energy management unit (EMU) that significantly boosts the efficiency of electrostatic generators for Internet of Things (IoT) applications. This breakthrough addresses the challenge of high impedance mismatch between electrostatic generators and electronic devices, unlocking new possibilities for ambient energy harvesting.

Electrostatic generators have emerged as a promising solution for powering low-power devices in Internet of Things (IoT) networks, utilizing energy from environmental sources such as wind and human motion. Despite their potential, the effectiveness of these generators has been hampered by an impedance mismatch when connected to electronic devices, leading to low energy utilization efficiency.

A study published in ...

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Developing ‘Indoor Solar’ to Power the Internet of Things

internet
Credit: Pixabay/CC0 Public Domain

From Wi-Fi-connected home security systems to smart toilets, the so-called Internet of Things brings personalization and convenience to devices that help run homes. But with that comes tangled electrical cords or batteries that need to be replaced. Now, researchers reporting in ACS Applied Energy Materials have brought solar panel technology indoors to power smart devices. They show which photovoltaic (PV) systems work best under cool white LEDs, a common type of indoor lighting.

Indoor lighting differs from sunlight. Light bulbs are dimmer than the sun. Sunlight includes ultraviolet, infrared and visible light, whereas indoor lights typically shine light from a narrower region of the spectrum...

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Thin-Film, High-Frequency Antenna Array offers new Flexibility for Wireless Communications

Princeton researchers have developed a new type of phased array antenna based on large-area electronics technology, which could enable many uses of emerging 5G and 6G wireless networks. The researchers tested the system on the roof of Princeton’s Andlinger Center for Energy and the Environment.
Can Wu

Princeton researchers have taken a step toward developing a type of antenna array that could coat an airplane’s wings, function as a skin patch transmitting signals to medical implants, or cover a room as wallpaper that communicates with internet of things (IoT) devices.

The technology, which could enable many uses of emerging 5G and 6G wireless networks, is based on large-area electronics, a way of fabricating electronic circuits on thin, flexible materials...

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