Seoul National University College of Engineering announced that a research team led by Prof. Yongtaek Hong from the Department of Electrical and Computer Engineering has developed a high-performance transparent organic light-emitting diode (OLED) incorporating highly conductive transparent metal mesh top electrodes fabricated using a selective metal deposition technique. The research was published in the journal Materials Horizons and was selected as the outside front cover image for the issue.

Transparent OLEDs have attracted signifi...

Heatwaves across Europe and South Asia have dominated the news recently. But these events are really a surface expression of more fundamental changes affecting our planet: Earth itself is accumulating heat faster than ever before.

We lead a large international team of scientists who come together every year to provide an update on the state of the climate system. This year, we find that Earth’s energy imbalance—the difference between the amount of energy entering and leaving the planet—has doubled in recent decades and is now at record levels.

This extra heat is a key indicator of the pace and scale of human-caused climate change. In a climate unaffected by human greenhouse gas emissions, Earth’s energy imbalance would be zero...

The critical minerals that power lithium-ion batteries are in high demand and short supply, especially for the U.S., which must rely on importing resources such as nickel and cobalt to manufacture the technology.

Cornell researchers have now developed a more efficient and cost-effective way to recover almost the full life of these batteries after they are spent. By using an electrochemical solution to regenerate their electrodes, the recycled batteries can regain up to 95% of their original power and last longer when reused, the researchers demonstrated.

The process could also slash current recycling costs by 56% and would be more environmentally friendly than current methods.

The findings were published in Energy & Environmental Science...

The mysterious Amaterasu particle may not be a proton at all. New research suggests that some of the most extreme cosmic rays could be ultraheavy atomic nuclei, heavier than iron, which are better able to retain their energy while traveling through space...