Articles by Lisa Zyga
Phys.org / Perovskite solar cells become even more promising with cheaper materials
(Phys.org) —Due to their rapid improvements in a short amount of time, perovskite solar cells have become one of today's most promising up-and-coming photovoltaic technologies. Currently, the record efficiency for a perovskite ...
Phys.org / Scientists grow ultrahigh-purity carbon nanotubes
(Phys.org) —Single-walled carbon nanotubes (SWCNTs) are being widely studied for their potential applications in many areas; for example, as electrode materials for energy storage, as transparent conductive films, and as ...
Phys.org / Defects in 2D semiconductors could lead to multi-colored light-emitting devices
When scientists remove individual atoms in a semiconductor material, the resulting vacancies become point defects. Contrary to what their name implies, these defects can have beneficial effects on the semiconductor's properties ...
Phys.org / Is mathematics an effective way to describe the world?
Mathematics has been called the language of the universe. Scientists and engineers often speak of the elegance of mathematics when describing physical reality, citing examples such as π, E=mc2, and even something as simple ...
Phys.org / What does a city's appearance say about itself?
Just as we are quick to judge people by their appearances, we can also get a good feel for a city from its appearance. With a quick glance, we subconsciously notice the cleanliness of the neighborhoods, the beauty of the ...
Phys.org / Tests find Rossi's E-Cat has an energy density at least 10 times higher than any conventional energy source
(Phys.org) —In the ongoing saga of Andrea Rossi's energy catalyzer (E-Cat) that promises clean, cheap power for the world, the latest events continue to bring as many questions as answers. Several scientists have performed ...
Phys.org / Scientists enhance light emission in 2D semiconductors by a factor of 100
(Phys.org) —The mention of a two-dimensional material with excellent electrical and optical properties may first bring to mind graphene. However, this description also fits another class of materials called transition metal ...
Phys.org / Physicists propose measure of macroscopicity; Schrodinger's cat scores a 57
(Phys.org) —The size of an object can be measured in many ways, such as by its mass, volume, or even the number of atoms it contains. And when it comes to quantum physics, "macroscopic" objects are considered to be larger ...
Phys.org / Phase transition may explain how brain neurons encode information
(Phys.org) —While scientists know that information is represented in the brain by the electrical activity of neurons, the details of this representation, called "neural coding," remain mysterious. How exactly do pulses of ...
Phys.org / Junior Robotics online exhibit showcases kids' robots
(Phys.org) —As robotics has become an increasingly popular way to get kids and teens involved in the field of engineering, the robotics projects that the kids are doing have become more creative and sophisticated. A new online ...
Phys.org / Controlling nanoclusters with surface defects could lead to construction of nanodevices (w/ Video)
(Phys.org)—In nanoscience, the ultimate goal is to design better materials and devices by controlling the positions of the atoms, molecules, and molecular clusters on a substrate with exact precision. In a new study, researchers ...
Phys.org / Quantum strategies fail to improve capacity of quantum optical communication channels
(Phys.org)—Quantum techniques have been demonstrated to offer improvements in areas such as computing, cryptography, and information processing, among others. But in a new study, researchers from IBM have proven that no quantum ...
Phys.org / You don't exist in an infinite number of places, say scientists
(Phys.org)—If you've read about how modern cosmology may imply that, in an infinite universe, the existence of planets and the life forms that live on them must be repeated an infinite number of times, you may have been just ...
Phys.org / Synergistic effect discovered in layered quantum dot solar cells
(Phys.org)—Scientists have discovered that a solar cell consisting of two or three layers of quantum dots, with each layer tuned to a different part of the solar spectrum, has an efficiency that is 40-60% higher than the ...
Phys.org / Answer to energy transfer debate could impact areas from photovoltaics to quantum information
(Phys.org)—The transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics ...
