A team of researchers from Osaka University, Osaka Prefecture University, Osaka City University, and The University of Shiga Prefecture have found excitonic radiative decay faster than thermal dephasing at room temperature in zinc oxide (ZnO) thin films. These results, published recently in Physical Review Letters, will greatly reduce the thermal energy loss in optical operations.... PHYS.ORG · 3 months
Thermal unequilibrium of strained black CsPbI3 thin films  Science Magazine · 1 month
The high-temperature all-inorganic CsPbI3 perovskite black phase is metastable relative to its yellow non-perovskite phase, at room temperature. Since only the black phase is optically active, this represents an impediment for the... more
Nylon as a building block for transparent electronic devices?  SCIENCE DAILY · 1 week
Scientists have solved a four decade long challenge of producing very thin nylon films that can be used for instance in electronic memory components. The thin nylon films are several... more
Nylon as a building block for transparent electronic devices?  nanowerk · 1 week
Scientists have solved a four decade long challenge of producing very thin nylon films that can be used for instance in electronic memory components. The thin nylon films are several... more
Nylon as a building block for transparent electronic devices?  PHYS.ORG · 5 days
Scientists at the Max Planck Institute for Polymer Research (MPI-P) led by Dr. Kamal Asadi have solved a four-decade-long challenge of producing very thin nylon films that can be used... more
Experimental observation of a new class of materials: Excitonic insulators  SCIENCE DAILY · 3 weeks
A new study has found evidence of a new phase of matter predicted in the 1960s: the excitonic insulator, which has been keenly pursued by condensed matter physicists... more
Crossover from 2-D metal to 3-D Dirac semimetal in metallic PtTe2 films with local Rashba effect  PHYS.ORG · 4 days
Transition metal dichalcogenides (TMDCs) formed by group 10 metals (e.g. PtSe2, PtTe2) have emerged as important... more
Researchers observe spontaneous occurrence of skyrmions in atomically thin cobalt films  nanowerk · 2 days
Scientists show that individual magnetic skyrmions with a diameter of only a few nanometres can be stabilised in magnetic metal films even without an external magnetic... more
Why does El Niño decay faster than La Niña?  PHYS.ORG · 2 weeks
Warm and cold phases of El Niño-Southern Oscillation (ENSO) exhibit a significant asymmetry in their decay speed. Generally, El Niño tends to turn into a La Niña event in the... more
Experimental observation of a new class of materials: excitonic insulators  nanowerk · 3 weeks
Scientists have found evidence of a new phase of matter predicted in the 1960s: the excitonic insulator. more
A new method for depositing manganese oxide thin-films on planar and complex nanostructured surfaces  nanowerk · 2 weeks
Manganese oxides have numerous applications in batteries, supercapacitors, microelectronics and (electro)catalysis. Researchers describe a cheap and fast method for depositing... more
Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials  Science Magazine · 1 week
Heterogeneous integration of nanomaterials has enabled advanced electronics and photonics applications. However, similar progress has been challenging for thermal applications, in part due to shorter wavelengths of heat carriers (phonons) compared to... more
Excitonic insulators: Experimental observation of a new class of materials  PHYS.ORG · 4 weeks
A University of Wollongong / Monash University collaboration has found evidence of a new phase of matter predicted in the 1960s: the excitonic insulator. more
Giant gate-tunable bandgap renormalization and excitonic effects in a 2-D semiconductor  PHYS.ORG · 1 month
Investigating the remarkable excitonic effects in two-dimensional (2-D) semiconductors and controlling their exciton binding energies can unlock the full potential of 2-D materials for future applications... more
Researchers observe spontaneous occurrence of skyrmions in atomically thin cobalt films  PHYS.ORG · 1 day
Since their experimental discovery, magnetic skyrmions—tiny magnetic knots—have moved into the focus of research. Scientists from Hamburg and Kiel have now been able to show that... more
Atomically thin straintronic devices  nanowerk · 3 days
By studying flexible and transparent photodetectors based on single-layer MoS2 under the application of biaxial strain, researchers have developed atomically thin photodetectors whose characteristics can be controlled by means of an externally applied strain. This strain can be reversibly applied... more
Greener, faster and cheaper way to make patterned metals for solar cells and electronics  nanowerk · 2 weeks
Researchers have developed a way to make patterned films of silver and copper (the two most conductive metals) using cheap... more
Neural networks will help manufacture carbon nanotubes  PHYS.ORG · 2 weeks
Thin films made of carbon nanotubes hold a lot of promise for advanced optoelectronics, energy and medicine, however with their manufacturing process subject to close supervision and stringent standardization requirements, they are unlikely to... more
ATLAS delivers new direct measurement of the top-quark decay width with improved precision  PHYS.ORG · 2 weeks
As the heaviest known particle, the top quark plays a key role in studies of fundamental interactions. Due to its short lifetime,... more
Rapid coral death and decay, not just bleaching, as marine heatwaves intensify  PHYS.ORG · 2 weeks
When ocean temperatures rise, corals are put at risk of a phenomenon known as bleaching, in which corals expel the algae living in their... more
Pathways and challenges for efficient solar-thermal desalination  Science Magazine · 4 weeks
Solar-thermal desalination (STD) is a potentially low-cost, sustainable approach for providing high-quality fresh water in the absence of water and energy infrastructures. Despite recent efforts to advance STD by improving heat-absorbing materials and system... more
Solution-processed transparent ferroelectric nylon thin films  Science Magazine · 1 week
Ferroelectricity, a bistable ordering of electrical dipoles in a material, is widely used in sensors, actuators, nonlinear optics, and data storage. Traditional ferroelectrics are ceramic based. Ferroelectric polymers are inexpensive lead-free materials that offer unique features... more
Assessing the strengths of solar thermal desalination  nanowerk · 1 week
Researchers propose an elegant theoretical framework to help others in the field better understand how various technological innovations can enhance solar thermal desalination (STD) performance. The framework is summed up in a straightforward equation... more
High temperature thermal shocks increase stability of single-atom catalysts  nanowerk · 2 weeks
A research team developed a high temperature shockwave catalysis method - reaching up to 3000K, which is half the temperature of the sun - intended to 'anchor' single atoms onto... more
Simulated chemical vapor deposition from a tungsten carbonitride precursor  PHYS.ORG · 2 weeks
Thin films play a key role in the production of electronics. They can be grown directly on a substrate surface through the chemical vapor deposition (CVD) process, which involves a... more
Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials  PHYS.ORG · 2 days
Heterogeneous nanomaterials can now facilitate advanced electronics and photonics applications, but such progress is challenging for thermal applications due to the comparatively shorter wavelengths of heat carriers (known as phonons). In a... more
Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts  Science Magazine · 3 weeks
We show that converting the surfaces of lead halide perovskite to water-insoluble lead (II) oxysalt through reaction with sulfate or phosphate ions can effectively... more
The Ice Is Melting Even Faster Than They Thought  LIVE SCIENCE · 4 weeks
A new study shows that the ice at the bottoms of submerged glaciers could be melting 100 times faster than anyone thought. more
Hydrophobic nanostructured wood membrane for thermally efficient distillation  PHYS.ORG · 2 weeks
During water desalination, membrane distillation (MD) is challenged by the inefficiency of water thermal separation from dissolved solutes, due to its dependence on membrane porosity and thermal conductivity. For instance, existing petroleum-derived... more
Low voltage LEDs with stacked atomically thin semiconductors  nanowerk · 3 weeks
When atomically thin semiconductors are combined together in a Lego style, they emit light at a lower voltage potentially leading to low energy consumption devices. more
Photothermally and magnetically controlled reconfiguration of polymer composites for soft robotics  Science Magazine · 3 weeks
New materials are advancing the field of soft robotics. Composite films of magnetic iron microparticles dispersed in a shape memory polymer matrix are demonstrated for reconfigurable,... more
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