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UCI scientists create new class of two-dimensional materials: Fabrication could help unlock new quantum computing and energy technologies

Nanotech-Now - June 14, 2019 - 7:45am
In a paper published this week in Nature, materials science researchers at the University of California, Irvine and other institutions unveil a new process for producing oxide perovskite crystals in e...

Jon Poplawsky

National Nanomanufacturing Network - June 11, 2019 - 9:33am
Job Title: Materials ScientistCenter: Oak Ridge National LaboratoryInstitution: Department of EnergyAddress: 1 Bethel Valley Rd Oak Ridge, TN 37830Jon Poplawsky, a materials scientist at the Department of Energy’s Oak Ridge National Laboratory, develops and links advanced characterization techniques that improve our ability to see and understand atomic-scale features of diverse materials for energy and information technologies. His forte is atom probe tomography (APT), a method that can identify the three-dimensional (3D) positions and species of atoms within a volume of material with sub-nanometer resolution. The atom probe pulls atoms off the tip of a needle-shaped sample, atom by atom. When the experiment is done, the material is consumed. The identity of each atom is determined from time-of-flight mass spectrometry as the atom travels from the tip of the needle to the detector for mapping. While APT cannot always extract atom-level structural information, it gives a general 3D picture of the distribution and identities of individual atoms. “The atom probe is like a movie that you can freeze to see one frame at a time,” Poplawsky explained. “You can see each atom reconstructed in 3D and understand what happened to the atoms because of a given process.” Poplawsky has used this precise, accurate instrument to characterize zeolite catalysts, solar cells, light-emitting diodes, structural materials, battery materials, semiconductor devices, ceramics and other diverse materials. Type: GovernmentSpecialization: ResearchEmail Address: poplawskyjd@ornl.gov URL:  https://www.ornl.gov/staff-profile/jonathan-d-poplawsky Phone: 865-576-4965InterNano Taxonomy: Mass spectrometryTags: atom probe tomography (APT)materials scientistOak Ridge National LaboratoryORNLadvanced characterization techniquestime-of-flight mass spectrometryMass spectrometryzeolite catalystsSolar Cellslight-emitting diodesstructural materialsbattery materialsSemiconductor devicesCeramics Image:  Directory

Shaking hands with human or robot? Nanotubes make them alike as never before

Nanotech-Now - June 8, 2019 - 7:45am
Will the future of humanity resemble the robot-filled societies seen in science fiction? In fact, human-like robots are much closer to becoming a reality than you may think. Thanks to nanotube-based s...

nPoint piezo driven nanopositioning flexure stages now available from Elliot Scientific

Nanotech-Now - June 8, 2019 - 7:45am
Elliot Scientific is pleased to announce that it has been selected by nPoint, Inc. to be the exclusive UK and Ireland distributor of their nanopositioning solutions.

Arrowhead Pharmaceuticals to Present at Upcoming June 2019 Conferences

Nanotech-Now - June 8, 2019 - 7:45am
Arrowhead Pharmaceuticals Inc. (NASDAQ: ARWR) today announced that it is scheduled to participate in the following upcoming events:

Flexible generators turn movement into energy: Rice University's laser-induced graphene nanogenerators could power future wearables

Nanotech-Now - June 8, 2019 - 7:45am
Wearable devices that harvest energy from movement are not a new idea, but a material created at Rice University may make them more practical.

Breaking the symmetry in the quantum realm

Nanotech-Now - June 6, 2019 - 7:45am
For the first time, researchers have observed a break in a single quantum system. The observation--and how they made the observation--has potential implications for physics beyond the standard underst...

Quantum information gets a boost from thin-film breakthrough: Method opens new path to all-optical quantum computers, other technologies

Nanotech-Now - June 6, 2019 - 7:45am
Efforts to create reliable light-based quantum computing, quantum key distribution for cybersecurity, and other technologies got a boost from a new study demonstrating an innovative method for creatin...

Russian scientists investigate new materials for Li-ion batteries of miniature sensors: Researchers are developing new materials for solid-state thin-film Li-ion batteries for micro and nanodevices

Nanotech-Now - June 6, 2019 - 7:45am
Researchers of Peter the Great St.Petersburg Polytechnic University (SPbPU) are developing new materials for solid-state thin-film Li-ion batteries for micro and nanodevices. The first stage of the pr...

Secure metropolitan quantum networks move a step closer

Nanotech-Now - June 6, 2019 - 7:45am
Successful new field tests of a continuous-variable quantum key distribution (CV-QKD) system over commercial fiber networks could pave the way to its use in metropolitan areas.

Beyond 1 and 0: Engineers boost potential for creating successor to shrinking transistors

Nanotech-Now - June 6, 2019 - 7:45am
Computers and similar electronic devices have gotten faster and smaller over the decades as computer-chip makers have learned how to shrink individual transistors, the tiny electrical switches that co...

NIST physicists 'teleport' logic operation between separated ions

Nanotech-Now - June 6, 2019 - 7:45am
Physicists at the National Institute of Standards and Technology (NIST) have teleported a computer circuit instruction known as a quantum logic operation between two separated ions (electrically charg...

Laser technique could unlock use of tough material for next-generation electronics: Researchers make graphene tunable, opening up its band gap to a record 2.1 electronvolts

Nanotech-Now - June 4, 2019 - 7:45am
ABSTRACT Asymmetric 3D Elastic-Plastic Strain-Modulated Electron Energy Structure in Monolayer Graphene by Laser Shocking Maithilee Motlag1, Prashant Kumar1, Kevin Y. Hu1, Shengyu Jin1, Ji Li1,...

ACS selects Naomi Halas to represent Americas at ChinaNano: Rice U. pioneer wins 2019 ACS Nano Lectureship Award for the Americas

Nanotech-Now - June 4, 2019 - 7:45am
Rice University nanoscientist Naomi Halas has been chosen by the American Chemical Society to represent the Americas as the winner of a coveted 2019 ACS Nano Lectureship Award.

Chemists build a better cancer-killing drill: Rice U.-designed molecular motors get an upgrade for activation with near-infrared light

Nanotech-Now - June 2, 2019 - 7:45am
An international team of scientists is getting closer to perfecting molecule-sized motors that drill through the surface of cancer cells, killing them in an instant.

Building next gen smart materials with the power of sound

Nanotech-Now - June 2, 2019 - 7:45am
Researchers have used sound waves to precisely manipulate atoms and molecules, accelerating the sustainable production of breakthrough smart materials.

Data science helps engineers discover new materials for solar cells and LEDs

Nanotech-Now - May 31, 2019 - 7:45am
Engineers at the University of California San Diego have developed a high-throughput computational method to design new materials for next generation solar cells and LEDs. Their approach generated 13...

Quantum rebar: Quantum dots enhance stability of solar-harvesting perovskite crystals: Researchers demonstrate that perovskite crystals and quantum dots working together can increase stability of solar materials

Nanotech-Now - May 31, 2019 - 7:45am
University of Toronto Engineering researchers have combined two emerging technologies for next-generation solar power -- and discovered that each one helps stabilize the other. The resulting hybrid ma...

Big energy savings for tiny machines

Nanotech-Now - May 31, 2019 - 7:45am
Inside all of us are trillions of tiny molecular nanomachines that perform a variety of tasks necessary to keep us alive.

Light and nanotechnology combined to prevent biofilms on medical implants

Nanotech-Now - May 31, 2019 - 7:45am
Invented approximately 50 years ago, surgical medical meshes have become key elements in the recovery procedures of damaged-tissue surgeries, the most frequent being hernia repair. When implanted with...