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Nanotechnology Now - Press Release: Researchers build structured, multi-part nanocrystals with super light-emitting properties
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IMAGE: Researchers combined perovskite nanocubes - tiny crystals with useful electrical or optical properties - with spherical nanoparticles to form a regular, repeating structure called a superlattice. Some of these structures. view more
Credit: Image courtesy of Maksym Kovalenko and Ihor Cherniukh/ETH Zürich, the Swiss Federal Institute of Technology
AMES, Iowa - Researchers have developed new types of materials that combines two or three types of nanoparticles into structures that display fundamental new properties such as superfluorescence. The whole goal of this research is to make new materials with new properties and/or exotic new structures, said Alex Travesset, an Iowa State University professor of physics and astronomy and an associate scientist for the U.S. Department of Energy s Ames Laboratory. Those materials are made of very tiny materials, nanoparticles, and lead to properties not shared by more traditional materials made of atoms and molec
Posted 5 hours ago Xiaoli Tan and a team of campus collaborators used this transmission electron microscope at the Ames Laboratory s Sensitive Instrument Facility to study the effects of engineering defects into certain materials. Larger photo.
Photo by Christopher Gannon. AMES, Iowa – Materials engineers don’t like to see line defects in functional materials. The structural flaws along a one-dimensional line of atoms generally degrades performance of electrical materials. So, as a research paper published today by the journal Science reports, these linear defects, or dislocations, “are usually avoided at all costs.” But sometimes, a team of researchers from Europe, Iowa State University and the U.S. Department of Energy’s Ames Laboratory report in that paper, engineering those defects in some oxide crystals can actually increase electrical performance.
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Engineered defects in crystalline material boosts electrical performance Xiaoli Tan and a team of campus collaborators used this transmission electron microscope at the Ames Laboratory’s Sensitive Instrument Facility to study the effects of engineering defects into certain materials. Larger photo. Photo by Christopher Gannon.
AMES, Iowa – Materials engineers don’t like to see line defects in functional materials.
The structural flaws along a one-dimensional line of atoms generally degrades performance of electrical materials. So, as a research paper published today by the journal Science reports, these linear defects, or dislocations, “are usually avoided at all costs.”
But sometimes, a team of researchers from Europe, Iowa State University and the U.S. Department of Energy’s Ames Laboratory report in that paper, engineering those defects in some oxide crystals can actually increase electrical performance.
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