Sentences with phrase «called nanocrystal»

These so - called nanocrystal quantum dots, however, have a coating of organic molecules that tends to block out the electrons needed to stimulate the dots.

The result brings the tiny flakes, called nanocrystals, a crucial step closer to fulfilling their promise of tailoring a laser's color just by changing the size of the crystal, which could lead to more powerful tools for detecting chemicals or sending information via flickers of light.

Not exact matches

Atoms on the surface are vulnerable to reactions that can degrade the material, so molecules that bind to the surface — called surface ligands or capping ligands — are used both to stabilize perovskite nanocrystals and to control their properties.

This effect, called structural color, has also been found in chameleons that can «tune» nanocrystals in their skin to change color the way tuning a guitar changes its pitch, as reported in 2015 in Nature Communications.

For the future, Lin envisions more complex nanocrystals with multifunctional shells and additional shapes, including nanorods and so - called «Janus» nanoparticles that are composed of biphasic geometry of two dissimilar materials.

The nanowire path beyond the superconductor is configured into a junction and the team ensures that the electrons take separate directions when they meet this fork by placing a «gate» built from a nanocrystal, called a quantum dot, at the head of each path.

Dragomir Neshev at the Australian National University in Canberra and his colleagues have shown that the nanocrystals can emit the absorbed infrared energy within the visible spectrum — a property called second harmonic generation.

Researchers at CNRS, CEA and the Université Grenoble Alpes propose an efficient alternative using semi-conductor nanocrystals (also called quantum dots) based on cheaper and less toxic elements, such as copper, indium and sulfur.

Now, Rosso and teams at PNNL, EMSL, the Environmental Molecular Sciences Laboratory, a DOE Office of Science User Facility at PNNL, and the University of Pittsburgh developed a new approach by combining an environmental transmission electron microscope, called an ETEM, with nanocrystal force probes that allows scientists to watch crystals interact in a life - like situation.

Also called nanodots, nanocrystals and quantum beads.