/ en-us ÌÇÐÄÊÓƵ internet news portal provides the latest news on science including: ÌÇÐÄÊÓƵics, ÌÇÐÄÊÓƵ, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Colloidal halide perovskite nanocrystals have emerged as strong candidates for light-emitting diodes and solar applications due to their excellent photoluminescent properties. However, instability and lead toxicity limit their widespread adoption. Alloying with tin is seen as a promising strategy to address these issues, enabling broader spectral tunability and improved ambient stability. /news/2025-06-revealing-hidden-enemies-perovskite-materials.html Nanophysics Nanomaterials Fri, 13 Jun 2025 07:45:03 EDT news669019501 A team has developed a powerful new spectroscopic technique that enables real-time tracking of how perovskite nanomaterials change under light. The study is published in the journal Nature Communications. /news/2025-06-capturing-fleeting-perovskite-nanomaterials.html Nanophysics Nanomaterials Thu, 12 Jun 2025 14:44:42 EDT news668958272 Quantum materials exhibit remarkable emergent properties when they are excited by external sources. Functional applications of these properties rely heavily on their tunability in real time. However, these excited states decay rapidly once the excitation is removed, limiting their practical applications. /news/2025-06-quantum-state-lifetimes-laser-triggered.html Optics & Photonics Quantum ÌÇÐÄÊÓƵics Thu, 05 Jun 2025 13:08:01 EDT news668347675 Resonantly tunable quantum cascade lasers (QCLs) are high-performance laser light sources for a wide range of spectroscopy applications in the mid-infrared (MIR) range. Their high brilliance enables minimal measurement times for more precise and efficient characterization processes and can be used, for example, in chemical and pharmaceutical industries, medicine or security technology. Until now, however, the production of QCL modules has been relatively complex and expensive. /news/2025-06-semi-automated-efficient-quantum-cascade.html Condensed Matter Optics & Photonics Tue, 03 Jun 2025 17:00:03 EDT news668188801 In the nanometer range (billionth of a meter), interactions occur between light and matter that do not happen on larger scales. As such, so-called nanophotonic materials have unique optical properties that open up a whole range of technical possibilities. /news/2025-05-ultrathin-resonators-standard-efficient.html Nanophysics Nanomaterials Thu, 29 May 2025 12:09:11 EDT news667739344 Plants mastered the art of harvesting sunlight billions of years ago, using elegant rings of pigments in their leaves. Now, researchers from Osaka Metropolitan University have taken a major step toward mimicking that leafy architecture with human-made molecules that self-assemble into stacked rings where charge and energy can circulate freely—just like in photosynthesis. /news/2025-05-synthetic-molecular-energy.html Analytical Chemistry Materials Science Wed, 28 May 2025 09:58:04 EDT news667645082 All-perovskite tandem solar cells (TSCs) are a class of solar cells comprised of two or more sub-cells that absorb light with different wavelengths, all of which are made of perovskites (i.e., materials with a characteristic crystal structure known to efficiently absorb light). These solar cells have been found to be highly promising energy solutions, as they could convert sunlight into electricity more efficiently than existing silicon-based solar cells. /news/2025-05-crystal-agent-piracetam-scalable-strategy.html Nanomaterials Tue, 27 May 2025 11:30:01 EDT news667562347 Boracycles are important functional scaffolds, finding increasing applications in catalysis, synthesis, materials science, and pharmaceuticals. However, current studies predominantly focus on three-, five-, and six-membered boracycles, leaving four-membered boracycles largely unexplored. /news/2025-05-chemists-approach-air-stable-membered.html Analytical Chemistry Materials Science Mon, 19 May 2025 12:48:03 EDT news666877681 Artificial light, once a luxury, has become central to modern life, with its evolution spanning from fire to LEDs. Now, researchers have developed a new class of efficient light-emitting materials as promising candidates to be applied to lighten the darkness. They demonstrated easily accessible aluminum-based organometallic complexes that have the potential to be applied in optoelectronic devices. /news/2025-05-subtle-ligand-modifications-aluminum-complexes.html Analytical Chemistry Materials Science Fri, 16 May 2025 13:55:04 EDT news666622501 A research team led by Prof. Wang Mingtai at the Hefei Institutes of ÌÇÐÄÊÓƵical Science of the Chinese Academy of Sciences has developed a finely tuned method for growing titanium dioxide nanorod arrays (TiO2-NA) with controllable spacing without changing individual rod size and demonstrated its application in high-performance solar cells. /news/2025-05-finely-tuned-tio-nanorod-arrays.html Nanophysics Nanomaterials Fri, 16 May 2025 12:07:03 EDT news666616022 Two-dimensional (2D) materials have proved to be a promising platform for studying exotic quasiparticles, such as excitons. Excitons are bound states that emerge when an electron in a material absorbs energy and rises to a higher energy level, leaving a hole (i.e., the absence of an electron) at the site that it used to occupy. /news/2025-05-distinct-exciton-states-2h-stacked.html Condensed Matter Quantum ÌÇÐÄÊÓƵics Fri, 16 May 2025 07:30:01 EDT news666526645 In a recent study that merges supramolecular chemistry and molecular electronics, a research team has demonstrated how supramolecular porphyrin-based cages can enable tunable photoresponsive charge transport (CT) behaviors in solid-state devices. The findings could pave the way for more versatile and controllable molecular components in optoelectronic applications. /news/2025-05-photoresponsive-cages-tunable-supramolecular-electronics.html Nanophysics Nanomaterials Tue, 13 May 2025 09:56:06 EDT news666348962 Infrared optoelectronic functional materials are essential for applications in lasers, photodetectors, and infrared imaging, forming the technological backbone of modern optoelectronics. Traditionally, the development of new infrared materials has relied heavily on trial-and-error experimental methods. However, these approaches can be inefficient within the extensive chemical landscape, as only a limited number of compounds can achieve a balance of several critical properties simultaneously. /news/2025-05-machine-approach-discovery-high-infrared.html Condensed Matter Optics & Photonics Fri, 09 May 2025 12:51:02 EDT news666013861 RIKEN chemists have hit upon a fast and easy way to combine so-called nanobelts of carbon with sulfur-containing functional groups. The work is published in the journal Nature Communications. /news/2025-05-sulfur-capped-carbon-nanobelts-applications.html Nanomaterials Fri, 09 May 2025 09:34:02 EDT news666002041 Chirality—the property of an object that is distinct from its mirror image—has long captivated scientists across biology, chemistry, and physics. The phenomenon is sometimes called "handedness," because it refers to an object possessing a distinct left- or right-handed form. It is a universal quality that is found across various scales of nature, from molecules and amino acids to the famed double-helix of DNA and the spiraling patterns of snail shells. /news/2025-05-physicists-unusual-chiral-quantum-state.html Condensed Matter Quantum ÌÇÐÄÊÓƵics Wed, 07 May 2025 16:46:04 EDT news665855161 The use of light signals to connect electronic components is a key element of today's data communication technologies, because of the speed and efficiency that only optical devices can guarantee. Photonic integrated circuits, which use photons instead of electrons to encode and transmit information, are found in many computing technologies. Most are currently based on silicon—a good solution because it is already used for electronic circuits, but with a limited bandwidth. /news/2025-05-pockels-effect-advance-optoelectronic-technology.html Condensed Matter Optics & Photonics Wed, 07 May 2025 15:20:14 EDT news665850002 Near-infrared photodetectors are used in biomedical sensing and defense and security technologies. For enhanced performance and integrated, compact imaging systems, the photodetectors must be able to detect multiple wavelengths of light at once on a single chip. /news/2025-05-depositing-quantum-dots-corrugated-chips.html Nanophysics Nanomaterials Thu, 01 May 2025 14:15:03 EDT news665327701 Traditionally, magnetic materials have been divided into two main categories: ferromagnets and antiferromagnets. Over the past few years, however, physicists have uncovered the existence of altermagnets, a new type of magnetic material that exhibits features of both antiferromagnets and ferromagnets. /news/2025-04-layered-room-temperature-altermagnet-advanced.html Condensed Matter Fri, 18 Apr 2025 07:50:01 EDT news664105640 As the demand for innovative materials continues to grow—particularly in response to today's technological and environmental challenges—research into nanomaterials is emerging as a strategic field. Among these materials, quantum dots are attracting particular attention due to their unique properties and wide range of applications. A team of researchers from ULiège has recently made a significant contribution by proposing a more sustainable approach to the production of these nanostructures. /news/2025-04-reshaping-quantum-dots-production-sustainable.html Nanophysics Nanomaterials Fri, 11 Apr 2025 13:07:03 EDT news663595621 Researchers from ICMAB are revolutionizing how we manipulate light at the nanoscale using chiral plasmonic structures—nanomaterials designed to interact with polarized light in extraordinary ways. /news/2025-04-chiral-plasmonic-nanostructures-limits-nanoscale.html Nanophysics Nanomaterials Thu, 10 Apr 2025 11:58:03 EDT news663505081 A research team has successfully observed and identified the water-induced degradation mechanism of perovskite, which is a next-generation optoelectronic material, in real time at the atomic scale. Published in Matter, this study presents key strategies for enhancing the stability of perovskite materials and is expected to accelerate their commercialization. The team was led by Professor Jiwoong Yang of the Department of Energy Science & Engineering at DGIST. /news/2025-04-atomic-scale-mechanism-perovskite-degradation.html Nanomaterials Wed, 09 Apr 2025 14:46:03 EDT news663428761 The frequency regime lying in the shortwave infrared (SWIR) has very unique properties that make it ideal for several applications, such as being less affected by atmospheric scattering as well as being "eye-safe." These include Light Detection and Ranging (LIDAR), a method for determining ranges and distances using lasers, space localization and mapping, adverse weather imaging for surveillance and automotive safety, environmental monitoring, and many others. /news/2025-04-infrared-heavy-metal-free-quantum.html Optics & Photonics Quantum ÌÇÐÄÊÓƵics Thu, 03 Apr 2025 15:51:02 EDT news662914251 Researchers at The University of Manchester's National Graphene Institute have introduced a new class of reconfigurable intelligent surfaces capable of dynamically shaping terahertz (THz) and millimeter (mm) waves. Detailed in a paper published in Nature Communications, this breakthrough overcomes long-standing technological barriers and could pave the way for next-generation 6G wireless technologies and non-invasive imaging systems. /news/2025-03-graphene-based-programmable-surfaces-advance.html Optics & Photonics Thu, 27 Mar 2025 11:00:45 EDT news662292041 One of the simplest and most beautiful naturally occurring patterns can be observed when light is shined through a pair of slightly misaligned periodic structures. This phenomenon, known as the moiré effect, is not only pretty to look at, but also has important consequences for the properties of materials. /news/2025-03-physics-art-patterns.html Nanophysics Nanomaterials Thu, 27 Mar 2025 08:00:01 EDT news662198402 A moiré pattern appears when you stack and rotate two copies of an image with regularly repeating shapes, turning simple patterns of squares or triangles into a groovy wave pattern that moves across the combined image in an optical delight. /news/2025-03-moir-eye-phasons-enable-interlayer.html Nanophysics Mon, 24 Mar 2025 13:03:04 EDT news662040182 Researchers from Pohang University of Science and Technology (POSTECH) and the University of Montpellier have successfully synthesized wafer-scale hexagonal boron nitride (hBN) exhibiting an AA-stacking configuration, a crystal structure previously considered unattainable. /news/2025-03-stacking-constraints-hexagonal-boron-nitride.html Nanophysics Nanomaterials Thu, 20 Mar 2025 13:20:03 EDT news661695601 Scientists at the Institute of Organic Chemistry, University of Vienna, have unveiled an innovative approach for synthesizing azaparacyclophanes (APCs), a class of highly advanced ring-shaped molecular structures with immense potential in material science. /news/2025-03-molecular-efficiency-flexibility-displays-solar.html Analytical Chemistry Materials Science Tue, 18 Mar 2025 10:18:04 EDT news661511881 When light interacts with metallic nanostructures, it instantaneously generates plasmonic hot carriers, which serve as key intermediates for converting optical energy into high-value energy sources such as electricity and chemical energy. Among these, hot holes play a crucial role in enhancing photoelectrochemical reactions. However, they thermally dissipate within picoseconds (trillionths of a second), making practical applications challenging. /news/2025-03-advancing-electricity-energy-conversion-method.html Nanophysics Nanomaterials Mon, 17 Mar 2025 17:40:10 EDT news661451995 A group of Carnegie Mellon University researchers recently devised a method allowing them to create large amounts of a material required to make two-dimensional (2D) semiconductors with record high performance. Their paper, published in ACS Applied Materials & Interfaces in late December 2024, could lead to more efficient and tunable photodetectors, paving the way for the next generation of light-sensing and multifunctional optoelectronic devices. /news/2025-03-tellurium-boosts-2d-semiconductor-faster.html Nanophysics Nanomaterials Mon, 17 Mar 2025 14:37:03 EDT news661441021 Amplified spontaneous emission is a physical phenomenon that entails the amplification of the light spontaneously emitted by excited particles, due to photons of the same frequency triggering further emissions. This phenomenon is central to the functioning of various optoelectronic technologies, including lasers and optical amplifiers (i.e., devices designed to boost the intensity of light). /news/2025-03-amplified-spontaneous-emission-electron-hole.html Condensed Matter Plasma ÌÇÐÄÊÓƵics Mon, 17 Mar 2025 09:00:02 EDT news661175634