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Nanomaterials Jan 27, 2026

Gold 'supraballs' nearly double solar energy absorption in tests

Sunbeams contain a lot of energy. But current technology for harvesting solar power doesn't capture as much as it could. Now, in ACS Applied Materials & Interfaces, researchers report that gold nanospheres, named supraballs, ...

Nanophysics Jan 21, 2026

Ultrafast light switches use atomically thin semiconductors for rapid optical control

A nanostructure made of silver and an atomically thin semiconductor layer can be turned into an ultrafast switching mirror device that may function as an optical transistor—with a switching speed around 10,000 times faster ...

Nanomaterials Jan 19, 2026

Vibrational spectroscopy technique enables nanoscale mapping of molecular orientation at surfaces

Sum-frequency generation (SFG) is a powerful vibrational spectroscopy that can selectively probe molecular structures at surfaces and interfaces, but its spatial resolution has been limited to the micrometer scale by the ...

Optics & Photonics Jan 7, 2026

Optics research uses dim light to produce bright LEDs

Researchers at Princeton and North Carolina State University have developed a technique that substantially improves the ability to convert low-energy light into a high-energy version. The method has immediate applications ...

Analytical Chemistry Dec 31, 2025

Sunlight-driven nanoparticles enable cleaner ammonia synthesis at room temperature

Ammonia (NH3) is a colorless chemical compound comprised of nitrogen and hydrogen that is widely used in agriculture and in industrial settings. Among other things, it is used to produce fertilizers, as well as cleaning products ...

Nanophysics Dec 18, 2025

Flat-band ultrastrong coupling between phonons and plasmons observed for first time

Researchers from CIC nanoGUNE, in collaboration with the Donostia International Physics Center (DIPC) and the Center for Materials Physics (CFM), have experimentally observed and theoretically verified flat-band ultrastrong ...

Nanophysics Dec 15, 2025

Molecules as switches for sustainable light-driven technologies

Metal nanostructures can concentrate light so strongly that they can trigger chemical reactions. The key players in this process are plasmons—collective oscillations of free electrons in the metal that confine energy to extremely ...

Bio & Medicine Dec 8, 2025

Plant-virus proteins guide gold nanoparticles into eco-friendly sheets for solar tech

Using proteins from a common tobacco plant virus, McGill chemistry researchers have developed a simple, eco-friendly way to arrange gold nanoparticles into ultrathin sheets, strengthening the particles' optical properties. ...

Optics & Photonics Nov 13, 2025

Tabletop particle accelerator could transform medicine and materials science

A particle accelerator that produces intense X-rays could be squeezed into a device that fits on a table, my colleagues and I have found in a new research project.

Nanophysics Nov 12, 2025

Scientists make dark exciton states shine through nanotube engineering

A research team at the City University of New York and the University of Texas at Austin has discovered a way to make previously hidden states of light, known as dark excitons, shine brightly, and control their emission at ...

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