New AlN film growth method enhances emission of deep ultraviolet LEDs
The combination of a nano-patterned sapphire substrate and a graphene buffer allow researchers to grow higher quality AlN films for higher quality AlGaN-based deep ultraviolet light-emitting diodes.
Hybrid ‘super-semi’ structures exhibit unprecedented Josephson junction quality
Transparent superconductor-semiconductor Josephson junction forms a three-terminal device that can be tuned via gate voltages.
Learning from aspen leaves how to harvest energy from the slightest breeze
A new article reports on an aeroelastic energy harvester inspired by trembling aspen leaves, which are known to quiver in the presence of the slightest breeze.
Modeling microparticle movement
New paper describes the physics behind how micro-particles move within a colloid.
New modeling framework helps tailor designs of micro- and nano-structured stamps
New modeling framework allows rapid comparison of designs for micro- and nano-structured stamps used to mechanically transfer patterns onto devices.
What gives the transparent semiconductor copper iodide its color
Researchers combined optical experiments with density functional theory to define the off-center model that explain the differences in copper iodide crystal photoluminescence and absorption.
A novel wavefront engineering approach for producing new classes of optical components with enhanced functionality
Scientists demonstrated highly efficient transmissive dielectric metasurfaces capable of forming a spatially continuous phase profile for complex wavefront engineering, enabling new classes of ultra-thin, high-performance optical components.
New fabrication technique for quantum dots on silicon CMOS chips
Using a transfer printing method, researchers developed a CMOS-friendly silicon photonic chip that could pave the way for large-scale quantum technology.
How close are we to growing a human heart from stem cells?
According to review, we can now grow tissues analogous to heart muscle in utero using stem cells. The next step is to mimic the conditions that cause tissues to mature as they would in full adults.
Measuring heat across atoms
New paper introduces a novel approach to maximize thermal conductance across gold-gold atomic contacts.
Sustainability monitored through stretchable sensors
Engineered monitors measure the effects of climate change noninvasively — taking shape to fish, skin, and the environment.
Optimizing the transformation of energy in Germany
Using a quantitative model analysis, a new article looks at three core elements affecting a nation’s energy transformation from fossil fuels to renewable energy.