Friday, September 4, 2020

Photorealistic nanopainting with light

By shining white light on a glass slide stippled with millions of tiny titanium dioxide pillars, researchers have reproduced with astonishing fidelity the luminous hues and subtle shadings of Girl With a Pearl Earring, Dutch artist Johannes Vermeer's masterpiece.

A nano-confinement strategy to form sub-nanometer reactors

Researchers propose a nano-confinement strategy to host multiple Fe and Cu single atoms inside the extremely narrow yet regular surface cavities of graphitic carbon nitride to form sub-nanometer reactors.

Researchers synthesize silver sulfide/reduced graphene oxide composite catalysts

The development of efficient electrocatalyst to produce molecular hydrogen from water is receiving considerable attention, in an effort to decrease our reliance on fossil fuels. Silver sulfide nanocrystals have attracted enormous interests due to its excellent properties.

Squaring the circle - Breaking the symmetry of a sphere to control the polarization of light

Scientists developed a method to generate circularly polarized light from the ultimate symmetrical structure: the sphere. Their approach involves breaking the inherent symmetry of the sphere by electron beam excitation, which allows for precisely controlling the phase and polarization of the emitted light.

Nanoearthquakes control spin centers in SiC at room temperature

Researchers have demonstrated the use of elastic vibrations to manipulate the spin states of optically active color centers in SiC at room temperature. They show a non-trivial dependence of the acoustically induced spin transitions on the spin quantization direction, which can lead to chiral spin-acoustic resonances.