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Precision Growth of Light-emitting Nanowires

By Guest PostMay 10, 2015Scienceberkeley lab, catalysts, frank ogletree, freezing response, light emitting diodes, mice morphine, michael fanselow, opioids, ptsd like symptoms, shaul aloni, solar cells

Berkeley Lab team shows metal-alloy catalysts give more control in nanowire fabrication.

A novel approach to growing nanowires promises a new means of control over their light-emitting and electronic properties. In a recent issue of Nano Letters, scientists from the U.S. Department of Energy’s Lawrence Berkeley National Lab (Berkeley Lab) demonstrated a new growth technique that uses specially engineered catalysts. These catalysts, which are precursors to growing the nanowires, have given scientists more options than ever in turning the color of light-emitting nanowires. (more…)

Nuclear Spins Control Current in Plastic LED

By Guest PostNovember 1, 2014Sciencecoinbase ventures, confidence in cryptocurrencies, control, current, early stage companies, effekte von erdbeben, emilie choi, erdbeben, hybride, ibm insurance platform, investing in cryptocurrencies, light emitting diodes, michael strasser, oleds, organic, organic semiconductor, physicists, quantum computers, university of utah, woelfin thueringens, wolf hund mischlinge, wolfsmonitoring

Step toward Quantum Computing, Spintronic Memory, Better Displays

University of Utah physicists read the subatomic “spins” in the centers or nuclei of hydrogen isotopes, and used the data to control current that powered light in a cheap, plastic LED – at room temperature and without strong magnetic fields. (more…)

New Technique May Open Up an Era of Atomic-scale Semiconductor Devices

By Guest PostJune 2, 2013Scienceair, atomic scale, chun li, era, leds, light emitting diodes, linyou cao, molecules, molybdenum chloride, mos2, new technique, north Carolina, partial pressure, researchers, self limiting growth, semiconductor devices, solid atoms, state university, substrate, thin layer, vapor pressure, yifei yu

Researchers at North Carolina State University have developed a new technique for creating high-quality semiconductor thin films at the atomic scale – meaning the films are only one atom thick. The technique can be used to create these thin films on a large scale, sufficient to coat wafers that are two inches wide, or larger.

“This could be used to scale current semiconductor technologies down to the atomic scale – lasers, light-emitting diodes (LEDs), computer chips, anything,” says Dr. Linyou Cao, an assistant professor of materials science and engineering at NC State and senior author of a paper on the work. “People have been talking about this concept for a long time, but it wasn’t possible. With this discovery, I think it’s possible.” (more…)

Building A Better Trap

By Guest PostFebruary 19, 2012Nature, Scienceandes mountains, Colombia, electromagnetic spectrum, entomologist, equipment, evolutionary effect, fieldwork, fieldwork in peru, fluorescent, fluorescent bulb, french guiana, insects, leds, lee w cohnstaedt, leishmaniasis, leonard e munstermann, light emitting diodes, light technology, lorenza beati, michael greenwood, nanometer, peru, remote site, sand fly, south america, time, trap, vector borne diseases, wavelength of light

Fieldwork in Peru’s Andes Mountains is demanding, especially when it involves hauling heavy equipment to remote sites that are accessible only by traversing the region’s rugged terrain.

But the task of collecting insects for the study of vector-borne diseases and other purposes has become a little less onerous since a Yale School of Public Health researcher and colleagues designed a lighter — and perhaps better — trap. (more…)

Tag Archives: light emitting diodes

Precision Growth of Light-emitting Nanowires

Nuclear Spins Control Current in Plastic LED

New Technique May Open Up an Era of Atomic-scale Semiconductor Devices

Building A Better Trap