Breakthrough in ultra-fast data processing at nanoscale

20.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

A research team from the National University of Singapore has recently invented a novel "converter" that can harness the speed and small size of plasmons for high frequency data processing and transmission in nanoelectronics.

Team clarifies valley polarization for electronic and optoelectronic technologies

19.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

An interdisciplinary team of scientists at the U.S. Naval Research Laboratory (NRL) has uncovered a direct link between sample quality and the degree of valley polarization in monolayer transition metal dichalcogenides (TMDs). In contrast with graphene, many monolayer TMDs are semiconductors and show promise for future applications in electronic and optoelectronic technologies.

Art advancing science at the nanoscale

18.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

Like many other scientists, Don Ingber, M.D., Ph.D., the Founding Director of the Wyss Institute, is concerned that non-scientists have become skeptical and even fearful of his field at a time when technology can offer solutions to many of the world's greatest problems. "I feel that there's a huge disconnect between science and the public because it's depicted as rote memorization in schools, when by definition, if you can memorize it, it's not science," says Ingber, who is also the Judah Folkman Professor of Vascular Biology at Harvard Medical School and the Vascular Biology Program at Boston Children's Hospital, and Professor of Bioengineering at the Harvard Paulson School of Engineering and Applied Sciences (SEAS). "Science is the pursuit of the unknown. We have a responsibility to reach out to the public and convey that excitement of exploration and discovery, and fortunately, the film industry is already great at doing that."

Chemical treatment improves quantum dot lasers

16.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research at Los Alamos National Laboratory's Nanotech Team, the ~nanometer-sized dots are being doctored, or "doped," with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.

Vibrating nanoparticles interact: Placing nanodisks in groups can change their vibrational frequencies

16.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

Like a tuning fork struck with a mallet, tiny gold nanodisks can be made to vibrate at resonant frequencies when struck by light. In new research, Rice University researchers showed they can selectively alter those vibrational frequencies by gathering different-sized nanodisks into groups.

Team reconstructs nanoscale virus features from correlations of scattered X-rays

12.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

As part of an international research team, Jeff Donatelli, Peter Zwart and Kanupriya Pande of the Center for Advanced Mathematics for Energy Research Applications (CAMERA) at Lawrence Berkeley National Laboratory (Berkeley Lab) contributed key algorithms which helped achieve a goal first proposed more than 40 years ago - using angular correlations of X-ray snapshots from non-crystalline molecules to determine the 3D structure of important biological objects. This technique has the potential to allow scientists to shed light on biological structure and dynamics that were previously impossible to observe with traditional X-ray methods.

Researchers discuss the future impact of today’s nanotech research

11.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

World-renowned nanoscientists and chemists Chad Mirkin, the Director of the International Institute for Nanotechnology (IIN) at Northwestern University, and Teri Odom, the IIN's Associate Director, sit down to discuss the golden age of miniaturization and how the "science of small things" is fostering major advances.

Researchers discuss the future impact of today’s nanotech research

11.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

World-renowned nanoscientists and chemists Chad Mirkin, the Director of the International Institute for Nanotechnology (IIN) at Northwestern University, and Teri Odom, the IIN's Associate Director, sit down to discuss the golden age of miniaturization and how the "science of small things" is fostering major advances.

Researchers image perfectly smooth side-surfaces of 3-D silicon crystals with a scanning tunneling microscope

10.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

A research collaboration between Osaka University and the Nara Institute of Science and Technology for the first time used scanning tunneling microscopy (STM) to create images of atomically flat side-surfaces of 3-D silicon crystals. This work helps semiconductor manufacturers continue to innovate while producing smaller, faster, and more energy-efficient computer chips for computers and smartphones.

Prototype shows how tiny photodetectors can double their efficiency

09.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

Physicists at the University of California, Riverside have developed a photodetector - a device that senses light - by combining two distinct inorganic materials and producing quantum mechanical processes that could revolutionize the way solar energy is collected.

A way to cause graphene to self-fold into 3-D shapes

09.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

(Phys.org)—A team of researchers with Johns Hopkins University and MIT has found a way to cause flat sheets of graphene to self-fold into 3-D geometric shapes. In their paper published on the open access site Science Advances, the group explains how they prepared the sheets and then used heat to cause them to fold.

Researchers observe exotic quantum particle in bilayer graphene

06.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

October 5, 2017—A team led by Cory Dean, assistant professor of physics at Columbia University, and James Hone, Wang Fong-Jen Professor of Mechanical Engineering at Columbia Engineering, has definitively observed an intensely studied anomaly in condensed matter physics—the even-denominator fractional quantum Hall (FQH) state—via transport measurement in bilayer graphene. The study is published online today in Science.

New ultralight silver nanowire aerogel is boon for energy and electronics industries

06.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

A new ultralight silver nanowire aerogel could be a boost to the energy and electronics industries.

Tungsten offers nano-interconnects a path of least resistance

04.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

As microchips become ever smaller and therefore faster, the shrinking size of their copper interconnects leads to increased electrical resistivity at the nanoscale. Finding a solution to this impending technical bottleneck is a major problem for the semiconductor industry.

Confined within tiny carbon nanotubes, extremely cold water molecules line up in a highly ordered chain

03.10. 2017 Nanotechnology News - Nanoscience, Nanotechnolgy, Nanotech News

Single-walled carbon nanotubes act like tiny straws that are so narrow that water confined within cannot freeze into its normal crystal-like structure. In particular, in very thin nanotubes, water molecules align in a single-file manner. At room temperature, each molecule remains orientated in a random direction, creating a disordered chain. For the first time, scientists observed that at a cool 150 K, these molecules go through a quasiphase transition. In this transition, the molecules orient themselves in a highly structured, classically hydrogen-bonded arrangement.