Sentences with phrase «of nanocrystals»

According to Zhang, the branching structure of the ligands protects the surface of the nanocrystals by occupying more space than straight - chain molecules, creating a mechanical barrier through an effect known as steric hindrance.

The researchers were able to control the size of the nanocrystals by adjusting the amount of branched capping ligands used during synthesis.

The researchers then explored the biological applications of their nanocrystals by using them to detect alkaline phosphatases, enzymes that frequently indicate bone and liver diseases.

In his research, he has demonstrated key applications of nanocrystals in biological imaging and renewable energy.

In the demonstration, the team used metamaterials having hyperbolic dispersion to enhance the light emission properties of the nanocrystals and simultaneously engineered an efficient light extraction scheme.

X-ray crystallography and ultraviolet spectroscopy provide additional detailed evidence about the internal structure of the nanocrystals at the atomic level.

Polymeric carbon nitrides are organic compounds synthesized to form a yellow powder of a myriad of nanocrystals.

The other facet of the nanocrystal, with both lead and sulfur exposed, was bare of ligands.

In the study team explains that their process allows them to very precisely control the exact size and shape of the nanocrystals and it is this that allows them to fine tune the color of the light these materials produce when stimulated with ultraviolet light or electricity.

«It is pretty interesting that one can so easily control the direction of the nanocrystals, for example, if you want to print something that should have a specific mechanical rigidity in a certain direction,» says Siqueira.

Other forms of quantum dots could be used as a sensor in place of the molecule, such as those that can be realized with semiconductor materials: one example would be quantum dots made of nanocrystals like those already being used in fundamental research.

«The largest superparamagnetic materials that we have been able to make before now were clusters of nanocrystals that were together about a thousand times smaller than these,» commented Dr. Chen.

Reptiles change colors by rearranging a lattice of nanocrystals in one of the top layers of skin cells

The particles, which are invisible to the naked eye, contain colored stripes of nanocrystals that glow brightly when lit up with near - infrared light.

In work led by professor Yanliang Zhang at Boise State University, high - performance and low - cost flexible thermoelectric films and devices were fabricated by an innovative screen - printing process that allows for direct conversion of nanocrystals into flexible thermoelectric devices.

M.H. Nielsen et al., Investigating Processes of Nanocrystal Formation and Transformation via Liquid Cell TEM, Microscopy and Microanalysis, 20 (2), 425 - 436, DOI: 10.1017 / S1431927614000294, (2014).

Feb. 20, 2018 — Sandra Rosenthal, the Jack and Pamela Egan Professor of Chemistry and director of the Vanderbilt Institute for Nanoscale Science and Engineering, is being recognized for her development of nanocrystal probes for neuroscience and white - light emitting nanocrystals as well as her leadership in the NSF - funded TN - SCORE program.

He has studied the quantum confinement effect, Auger effect, charge transfer and surface passivations of nanocrystals.

They discovered that by coating blue LEDs with a layer of nanocrystals specially engineered to turn the blue light into warm white, they could produce light at efficiency of over 300 lumens of visible light per watt.

Berkeley Lab reports, «The material is a thin coating of nanocrystals embedded in glass that can dynamically modify sunlight as it passes through a window.

The technology is made of an electrochromic material composed of nanocrystals of indium tin oxide embedded in a glassy matrix of niobium oxide.

Taking the experiment one step further, the researchers then systematically varied the CdSe - PCA energy gap by changing the size of the nanocrystals.

Researchers have developed a new method to capture the 3D structures of nanocrystals.

«The branching molecules are more cone - shaped, which increases steric hindrance and makes it harder for the solvent to access the surface of the nanocrystals,» he said.

Vela said variations in synthesis — changing reaction temperature and time, choice of metal ion precursors, adding certain ligands — allows the chemists to control the material's structure and the size of its nanocrystals.