Science · 27 August 2026 · From issue 29

High-efficiency, long-lived lead-free perovskite light-emitting diodes

A lead-free light-emitting material now shines with 21.2% efficiency and lasts over 920 hours.

Wenhao Bai, Tongtong Xuan et al.

Integrity screen: passed (3 checks) Checked 31 August 2026. Read the source

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A giant hydrogen gas cloud sits far from a known galaxy cluster, not inside it.
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Detailed pump pictures show how a fungus drug-resistant germ pumps drugs out of itself.
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In lab films, rapid cold-to-hot cycling made a common material store far more electrical energy.
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Matching human and AI personalities changed ad quality, clicks, and cost.
Proceedings of the National Academy of Sciences
In a lab crystal, magnetic waves formed two joined collective states at once, not just one.
Proceedings of the National Academy of Sciences
A bacterial pump expels the antibiotic fosfomycin, helping bacteria survive treatment.
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A new blood test spots infections and picks working drugs in 7 to 17 hours.
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Woven paper folds combine flat folding, stiff folding, and twisting motion in one design.
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A virus-like coat gene has stuck with jumping genes since before animals split into major groups.
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Galápagos coral records show El Niño swings have grown far stronger than natural variability alone.
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