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Microcomb chip achieves record-low noise for microwave and millimeter-wave signals

May 11, 2026 Researchers use microcomb-based photonic chips to generate ultralow-noise microwave and millimeter-wave signals with record stability for 6G and radar. (Nanowerk News) A chip-scale photonic system has achieved record low-noise microwave signal generation using optical frequency combs, known as microcombs. Researchers at KAIST demonstrated two complementary techniques that...

New strategy produces bulk graphene composite with record strength and thermal conductivity

May 11, 2026 Researchers used just 5.9% polymer resin to boost graphene composite strength by 117% while achieving a thermal conductivity ten times above conventional composites. (Nanowerk News) Modern electronics and advanced protective gear keep getting more powerful and compact, but all that performance packed into tight spaces generates intense...

Defect-engineered zinc oxide turns tiny strain into near-infrared light

May 11, 2026 Defect-engineered zinc oxide converts tiny reversible strains into near-infrared light, opening a rare-earth-free path to self-powered optical stress sensing. (Nanowerk Spotlight) Mechanoluminescent materials emit light when mechanical force acts on them. Researchers have demonstrated them in prototype systems for stress mapping, structural health monitoring, and biomedical sensing....

Stevia-based hydrogel improves triboelectric nanogenerator performance

May 11, 2026 Researchers developed a stevia-PVA hydrogel triboelectric nanogenerator with 2-5 times greater mechanical strength and 3-8 times higher electrical output than conventional designs. (Nanowerk News) A research team from South Korea has built a triboelectric nanogenerator using a stevia-infused hydrogel that surpasses existing designs in mechanical strength, electrical...

First separation of interfacial proton transport in ultrathin energy device materials

May 11, 2026 Researchers separated overlapping proton transport at different interfaces in energy materials, enabling accurate interface-specific conductivity evaluation. (Nanowerk News) Understanding how protons move at the interface between polymers and electrode materials is essential for improving fuel cells and related energy devices. However, conventional impedance measurements under inert conditions...

A dynamic molecular sunscreen for perovskite solar cells

May 09, 2026 A photoisomeric molecule called BTTM anchors ions in perovskite solar cells, improving UV stability and raising efficiency from 22.07% to 24.71%. (Nanowerk News) Researchers at Northwestern Polytechnical University and collaborating institutions have reported a molecular additive that protects perovskite solar cells from ultraviolet damage while raising their...