Solving the phase problem in x-ray diffraction
Consider the 'anticrystal'
(Phys.org) —For the last century, the concept of crystals has been a mainstay of solid-state physics. Crystals are paragons of order; crystalline materials are defined by the repeating patterns their constituent ...
'Inverse opal' structure improves thin-film solar cells
(Phys.org) —Researchers have shown how to increase the efficiency of thin-film solar cells, a technology that could bring low-cost solar energy. The approach uses 3-D "photonic crystals" to absorb more ...
Researchers steer light in new directions
A team of researchers led by San Francisco State University's Weining Man is the first to build and demonstrate the ability of two-dimensional disordered photonic band gap material, designed to be a platform ...
Chemical engineers' research may lead to inexpensive, flexible solar cells (w/ Video)
(Phys.org) —Work by a team of chemical engineers at Penn State and Rice University may lead to a new class of inexpensive organic solar cells.
Simulation shows colloids can form into non-crystalline state at below freezing temperatures
Scientists capture crystallization of materials in nanoseconds
(Phys.org) —Lawrence Livermore researchers for the first time have created movies of irreversible reactions that occur too rapidly to capture with conventional microscopy.
Unfrozen mystery: Water reveals a new secret
Using revolutionary new techniques, a team led by Carnegie's Malcolm Guthrie has made a striking discovery about how ice behaves under pressure, changing ideas that date back almost 50 years. Their findings ...
Faster, stronger, lighter: New technique advances carbon-fiber composites
These days, aerospace engineering is all about the light stuff: building airplanes with lighter wings, fuselage and landing gear in an effort to reduce fuel costs.
Manganese dioxide nanorod technology could lead to a better capacitor
(Phys.org) —A new process for growing forests of manganese dioxide nanorods may lead to the next generation of high-performance capacitors.
Thin layer of germanium may replace silicon in semiconductors
(Phys.org) —The same material that formed the first primitive transistors more than 60 years ago can be modified in a new way to advance future electronics, according to a new study.
Simulations reveal formation of some glassy materials like the setting of a bowl of gelatin
Gelatin sets by forming a solid matrix full of random, liquid-filled pores—much like a saturated sponge. It turns out that a similar process also happens in some metallic glasses, substances whose molecular ...
Scientists discover how photon beam can flip the spin polarization of electrons emitted from topological insulator
(Phys.org) —Plain-looking but inherently strange crystalline materials called 3D topological insulators (TIs) are all the rage in materials science. Even at room temperature, a single chunk of TI is a good ...
Study reveals ordinary glass's extraordinary properties
Researchers at the universities of Chicago and Wisconsin-Madison raise the possibility of designing ultrastable glasses at the molecular level via a vapor-deposition process. Ultrastable glasses could find ...