Researchers developed a compact, solid-state laser system that generates 193-nm coherent light — the first 193-nm vortex beam — promising significant advancements in semiconductor lithography and other high-tech applications Deep ultraviolet (DUV) lasers, known for their high photon energy and short wavelengths, are essential in various fields such as semiconductor lithography, high-resolution spectroscopy, precision material processing, and quantum technology. These lasers offer increased coherence and reduced power consumption compared to excimer or gas discharge lasers, enabling the development of more…
Using machine learning workflows developed in-house, the researchers were able to establish that heat conduction is much more intricate than previously thought. Findings offer potential for developing specific materials. Complex materials such as organic semiconductors or the microporous metal-organic frameworks known as MOFs are already being used for numerous applications such as OLED displays, solar cells, gas storage and water extraction. Nevertheless, they still harbour a few secrets. One of these has so far been a detailed understanding of how…
Combining solar energy and farming can be enhanced by smart PV-trackers that adjust solar panel positioning to ensure an optimal balance between light available for photosynthesis and light available for electricity production Agrivoltaic systems, which combine solar power generation with agricultural practices, offer a promising solution to the growing demand for both renewable energy and food production. By integrating solar panels with crops, these systems not only address the land use conflict between agriculture and energy production, but they also…
Researchers have advanced a decades-old challenge in the field of organic semiconductors, opening new possibilities for the future of electronics. The researchers, led by the University of Cambridge and the Eindhoven University of Technology, have created an organic semiconductor that forces electrons to move in a spiral pattern, which could improve the efficiency of OLED displays in television and smartphone screens, or power next-generation computing technologies such as spintronics and quantum computing. The semiconductor they developed emits circularly polarised light—meaning…
Nickel’s role in the future of electric vehicle batteries is clear: It’s more abundant and easier to obtain than widely used cobalt, and its higher energy density means longer driving distances between charges. However, nickel is less stable than other materials with respect to cycle life, thermal stability, and safety. Researchers from The University of Texas at Austin and Argonne National Laboratory aim to change that with a new study that dives deep into nickel-based cathodes, one of the two…
Researchers have manufactured Super-invar Fe64-Ni32-Co4 (wt %) alloy through wire-arc additive manufacturing(WAAM), revealing the association between the micro-structure and the value of the G (the temperature gradient)/R (the solidification rate) during the deposition process, and achieving the coefficient of thermal expansion (CTE) of 0.265×10-6K-1 from 20℃ to 100℃. Published in Advanced manufacturing, the findings provide a reference for the fast fabrication of super-invar alloy components through WAAM, which promotes the applications of super-invar alloy in aerospace. Super-invar alloy, distinguished by…
UChicago Pritzker School of Molecular Engineering research created inorganic and polymer battery electrolytes simultaneously, with potential applications across chemistry Creating battery electrolytes – the component that carries the charged particles back and forth between a battery’s two terminals – has always been a tradeoff. Solid-state inorganic electrolytes move the particles extremely efficiently, but being solid and inorganic means they’re also brittle, hard to work with and difficult to connect seamlessly with the terminals. Polymer electrolytes are a dream to work…
A new seismic study of Singapore could guide urban growth and renewable energy development in the coastal city nation, where 5.6 million residents live within an area of 734 square kilometers. The study, published in Seismological Research Letters, identifies areas with increased risk of ground shaking and a possible reservoir for geothermal energy production, as well as a glimpse at Singapore’s tectonic history. Jiayuan Yao of China University for Geosciences and colleagues analyzed teleseismic data captured by a few permanent…
Using first-principles calculations, a research group led by Prof. WANG Xianlong from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, found that phosphorus doping is an effective way to achieve high-energy polymeric nitrogen with black-phosphorus structure (BP-N) stable at ambient pressure. The research results were published in Matter and Radiation at Extremes. Cubic gauche nitrogen with diamond-like structure and BP-N with black phosphorus structure, represented by polymeric all-nitrogen materials, are a class of high-energy density materials composed…
Aqueous organic flow batteries (AOFBs) hold promise for renewable energy integration and electricity grid storage due to their inherent safety, as well as the availability of naturally abundant and synthetically tunable organic redox-active molecules (ORAMs). However, challenges such as low energy density, poor stability at high concentrations, and high synthesis costs hinder their commercial viability. Developing ORAMs that offer both high energy density and ultra-stable cycling performance is essential for advancing stationary energy storage solutions. Increasing the number of electron…
Quantum dot light-emitting diodes (QLEDs) have made rapid progress in luminescence, efficiency, and stability, making them promising candidates for displays and solid-state lighting applications. However, achieving high-performance QLEDs with high color purity remains a persistent challenge, particularly red QLEDs, thus limiting the popularity of ultra-high definition devices. Recently, Soochow University, in collaboration with Macau University of Science and Technology and other research institutes, reported a facile high-temperature successive ion layer adsorption and reaction (HT-SILAR) strategy for the growth of high-quality,…
A Penn State engineering student refined a century-old math problem into a simpler, more elegant form, making it easier to use and explore. Divya Tyagi’s work expands research in aerodynamics, unlocking new possibilities in wind turbine design that Hermann Glauert, a British aerodynamicist and the original author, did not consider. Tyagi, a graduate student pursuing her master’s degree in aerospace engineering, completed this work as a Penn State undergraduate for her Schreyer Honors College thesis. Her research was published in Wind Energy Science….
Scientists at Penn State have harnessed a unique property called incipient ferroelectricity to create a new type of computer memory that could revolutionize how electronic devices work, such as using much less energy and operating in extreme environments like outer space. They published their work, which focuses on multifunctional two-dimensional field-effect transistors (FETs), in Nature Communications. FETs are advanced electronic devices that use ultra-thin layers of materials to control electrical signals, offering multiple functions like switching, sensing or memory in a…
Curtin University researchers have developed a new technique to make glass water-repellent, a feature that could improve safety in vehicles, reduce cleaning costs for buildings and enhance filtration systems. The research, published in the prestigious journal Advanced Functional Materials, shows how an innovative and non-toxic process using ultrasonic sound waves can alter the surface of glass, making it either hydrophobic (water resistant) or electrically charged. Lead researcher Associate Professor Nadim Darwish, an ARC Future Fellow at Curtin’s School of Molecular…
The ancient peoples of the Philippines and of Island Southeast Asia (ISEA) may have built sophisticated boats and mastered seafaring tens of thousands of years ago—millennia before Magellan, Zheng He, and even the Polynesians. In a new paper coming out in the April 2025 issue of the Journal of Archaeological Science: Reports, Ateneo de Manila University researchers Riczar Fuentes and Alfred Pawlik challenge the widely-held contention that technological progress during the Paleolithic only emerged in Europe and Africa. They point…
Electricity generated using natural underground heat could become cost competitive with power from the grid by 2027 using enhanced geothermal systems, although care is still needed to address earthquake risks, researchers found Historically, access to geothermal energy has hinged on real estate’s famously three most important factors: location, location, and location. Because conventional geothermal power plants require hot, permeable rocks and plenty of underground fluid, use of the technology has been limited mostly to places with recent volcanism, such as Japan,…
Design to withstand hurricanes isn’t enough to protect tall buildings and facade systems against the climate crisis Houston, we have a problem. The ‘Space City’ boasts 50 buildings over 150 meters tall. These were designed to withstand hurricanes, to which Texas is prone. But on May 16th, 2024, a derecho – a wide, long-lived windstorm associated with rapidly moving showers or thunderstorms – managed to cause unexpected damage to many of the tall buildings downtown. The socio-economic impact was significant, due…