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27 Current news of Lehigh University
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Scientists fabricate a new class of crystalline solid
A 'subtle' laser heating technique causes atoms to assemble into a rotating lattice
04-Nov-2016
Scientists at Lehigh University, in collaboration with Lawrence Berkeley National Laboratory, have demonstrated the fabrication of what they call a new class of crystalline solid by using a laser heating technique that induces atoms to organize into a rotating lattice without affecting the ...
Making lasers cool again
02-Nov-2016
Once the preferred weapon of B-movie madmen and space-fiction heroes alike, the laser -- a device that generates an intense beam of coherent electromagnetic radiation by stimulating the emission of photons from excited atoms or molecules -- has grown a bit domesticated of late. These days, it has ...
The unexpected hardness of gallium nitride
31-Oct-2016
Gallium nitride (GaN) has emerged as one of the most important and widely used semiconducting materials. Its optoelectronic and mechanical properties make it ideal for a variety of applications, including light-emitting diodes (LEDs), high-temperature transistors, sensors and biocompatible ...
Lehigh engineer discovers a high-speed nano-avalanche
24-Aug-2016
Charles McLaren, a doctoral student in materials science and engineering at Lehigh University , arrived last fall for his semester of research at the University of Marburg in Germany with his language skills significantly lagging behind his scientific prowess. "It was my first trip to Germany, ...
First single-enzyme method to produce quantum dots revealed
11-May-2016
Quantum dots (QDs) are semiconducting nanocrystals prized for their optical and electronic properties. The brilliant, pure colors produced by QDs when stimulated with ultraviolet light are ideal for use in flat screen displays, medical imaging devices, solar panels and LEDs. One obstacle to mass ...
Uncovering oxygen's role in enhancing red LEDs
14-Jan-2016
In the fabrication of solid state lighting devices, scientists are learning, oxygen plays a two-edged role. While oxygen can impede the effectiveness of gallium nitride (GaN), an enabling material for LEDs, small amounts of oxygen in some cases are needed to enhance the devices' optical ...
Forming glass shapes: Lowering the 'softening temperature' via electric field
05-Nov-2015
On a serendipitous occasion, while attending a conference and listening to Rishi Raj, a professor of mechanical engineering at the University of Colorado Boulder, speak about the remarkable effect of moderate electrical fields on lowering the sintering temperature of certain ceramic powders, ...
Physicists map the strain in graphene
01-Oct-2015
An international group of scientists is reporting a breakthrough in the effort to characterize the properties of graphene noninvasively while acquiring information about its response to structural strain. Using Raman spectroscopy and statistical analysis, the group succeeded in taking nanoscale ...
Nanocatalyst is a gas
Rice U. formula could make fuel production better, greener
22-Sep-2010
A nanoparticle-based catalyst developed at Rice University may give that tiger in your tank a little more roar. A new paper in the Journal of the American Chemical Society details a process by Rice Professor Michael Wong and his colleagues that should help oil refineries make the process of ...
Lehigh University professor receives Astellas Award for arsenic groundwater remediation efforts
15-Dec-2009
Arup K. SenGupta, Ph.D., a professor of civil, environmental and chemical engineering at Lehigh University in Bethlehem, Pa., has been chosen to receive a 2009 Astellas USA Foundation Award. The award, administered by the American Chemical Society, is given to individuals who have made ...
