Energy & Green Tech

Device generates light from the cold night sky

An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule.

Energy & Green Tech

How machine learning can boost the value of wind power

Google talked about the feats of London-based DeepMind on Tuesday—telling the world that a DeepMind system could help make the use of wind farms to produce energy more viable.

Semiconductors

Fujitsu triples the output power of gallium-nitride transistors

Fujitsu Limited and Fujitsu Laboratories Ltd. today announced that they have developed a crystal structure that both increases current and voltage in gallium-nitride (GaN) high electron mobility transistors (HEMT), effectively ...

Energy & Green Tech

Efficient power converter for internet of things

The "internet of things" is the idea that vehicles, appliances, civil structures, manufacturing equipment, and even livestock will soon have sensors that report information directly to networked servers, aiding with maintenance ...

Energy & Green Tech

Scientists develop novel biophotovoltaics system

Researchers from the Institute of Microbiology of the Chinese Academy of Sciences have reported a novel biophotovoltaics (BPV) system based on a synthetic microbial consortium with constrained electron flow. This BPV system ...