科学与环境
Liquid-assisted crystal growth cuts perovskite defects for efficient solar cells and LEDs
来源: Phys.org - latest science and technology news stories · 发布于
A research team led by professor Seong Sik Shin of the SKKU Advanced Institute of Nanotechnology (SAINT) at Sungkyunkwan University (SKKU), in international collaboration with the Korea Research Institute of Chemical Technology (KRICT), the University of California, San Diego, an
A research team led by professor Seong Sik Shin of the SKKU Advanced Institute of Nanotechnology (SAINT) at Sungkyunkwan University (SKKU), in international collaboration with the Korea Research Institute of Chemical Technology (KRICT), the University of California, San Diego, and Princeton University, has developed a next-generation perovskite semiconductor thin film with dramatically reduced defects. Using the same material platform, the researchers demonstrated both high-performance solar cells and LEDs.
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JWST tracks more than 100 magnified stellar events in the Dragon galaxy
Using the James Webb Space Telescope (JWST), a team of astronomers identified 104 magnified stellar events in a galaxy known as the Dragon, located around 6.5 billion light-years away. This discovery more than doubles the previous record of 44 such detections in the same galaxy.
Phys.org - latest science and technology news stories ·
How space weather powers auroras in the sky and threatens power grids on the ground
An aurora is one of nature's most spectacular light shows: It looks like green or red curtains rippling across the night sky. When viewed from the ground, this colorful display might seem far away and disconnected from anything happening on Earth's surface.
Phys.org - latest science and technology news stories ·
100 buses long: Scientists map one of the world's largest known coral colonies
A huge coral colony stretching more than 1.5 kilometers (0.93 miles) along the outer reef of the Cocos (Keeling) Islands has been identified by researchers, making it one of the largest known coral colonies ever recorded.
Phys.org - latest science and technology news stories ·
New species of ground-dwelling bird, the largest of its kind, identified in same cave as Homo floresiensis
In 2009, researchers working in the Liang Bua cave on Flores Island came across a leg bone. The 190,000–120,000-year-old fossil was identified as a bird bone and set aside. Like many bird bones before it, it was overlooked and left to collect dust.
Phys.org - latest science and technology news stories ·
Game theory helps SETI search for alien civilizations
The search for extraterrestrial intelligence (SETI) is mostly concerned with where to look for technosignatures from another civilization. Between 2012 and 2015, SETI's Project Phoenix targeted about 1,000 sun-like stars for signs of intelligent life. But where to look might not
Phys.org - latest science and technology news stories ·