Articles tagged with Optoelectronics
Scientists have achieved control over the atomic structure of perovskites, creating a finely tuned energy sandwich that could transform how solar cells, LEDs, and lasers are made. The new method enables precise control over the thickness of films and interaction between layers, paving the way for scalable and high-performance devices.
Researchers have demonstrated a record-breaking 430 terabits per second (Tb/s) optical transmission using a novel approach that triples the capacity of standard-compliant cutoff-shifted optical fibers. The technology offers high throughput with reduced complexity, while utilizing existing optical fiber infrastructure.
Researchers at the Institute of Advanced Materials aim to develop sustainable, high-performance lead-free memristors for neuromorphic computing. The MemSusPer project seeks to improve perovskite layer properties and test new materials for enhanced electrical conductivity.
The researchers developed a chromatic filtration strategy to narrow the emission spectrum of mechanoluminescent materials, resulting in high spectral resolution and reduced noise. The new technology has significant potential for applications such as wearable sensors and healthcare motion monitoring.
Researchers at Rice University have discovered that light can trigger a physical shift in atomic lattice, creating tunable behavior and properties in transition metal dichalcogenide (TMD) materials. This effect could advance technologies using light instead of electricity, such as faster computer chips and ultrasensitive sensors.
Researchers developed a vertical drawing technique to fabricate intricate micro/nano optical fibers with tailored geometric precision. The approach enables meticulous control over diameter transitions and unlocks new possibilities for manipulating light-matter interactions, including supercontinuum generation.
Researchers develop serial tissue optical clearing methods to image neuro-vasculature of whole organ in mouse, enabling study of larger animal models like pigs and non-human primates. The technique facilitates the study of organ development and disease mechanisms in models closer to humans.
Optical computing harnesses light to accelerate feature extraction in AI applications. The new system, OFE2, achieves a 12.5 GHz operating rate and 250.5 ps latency, outperforming traditional digital processors.
Researchers at Sun Yat-sen University create a new method for fabricating ultra-uniform surface structures with features as small as 46 nanometers. The technique uses a carefully tuned femtosecond laser under water immersion, overcoming the challenge of creating uniform nanostructures smaller than 100 nanometers.
Researchers develop a scalable, eco-friendly method to isolate 10-μm-thick bamboo green frameworks with high transparency and haze levels. The study offers a promising pathway to sustainable light-management layers for next-generation photovoltaics and optoelectronics.
Researchers at Peking University have created a compact WGM microprobe for high-sensitivity ultrasound detection, achieving a remarkable noise-equivalent pressure of 5.4 mPa/√Hz. The device successfully performed photoacoustic imaging on various samples, including biological and synthetic microparticles.
The USC team created the first optical device that follows the emerging framework of optical thermodynamics, introducing a fundamentally new way to route light in nonlinear systems. The device uses simple thermodynamic principles to guide light naturally, without switches or digital addressing.
A new spinel-type sulfide semiconductor, (Zn,Mg)Sc2S4, has been developed by researchers at Science Tokyo. The material can be chemically tuned to switch between n-type and p-type conduction, making it suitable for pn homojunction devices in next-generation LEDs and solar cells.
Scientists at the University of Tsukuba have created a novel method to control Faraday rotation in conductive polymers by modulating polarons through electrochemistry and magnetic fields. This breakthrough has promising applications in magnetic field sensors and optical communication devices.
Scientists developed a custom Kelvin probe force microscopy system to study the chiral-induced spin selectivity effect in chiral halide perovskites. The study reveals nanoscale 'spin maps' that show the strength and spatial uniformity of the CISS effect.
A new study published in Nature Photonics reveals that virtual charges significantly influence the material's response to ultrashort light pulses. The research, conducted by Politecnico di Milano and other institutions, used advanced techniques to isolate the effect of virtual vertical transitions on monocrystalline diamonds.
Rice scientists developed a method to pattern device functions with submicron precision directly into an ultrathin crystal using focused electron beams. The approach created bright blue-light emitting traces that also conduct electricity, potentially enabling compact on-chip wiring and built-in light sources.
Researchers at Chalmers University of Technology have developed new simulation methods using machine learning to understand halide perovskites, a promising material for efficient solar cells. The study provides insights into the structure and behavior of formamidinium lead iodide, helping to address its instability issues.
A team of researchers developed a new manufacturing process using bio-based solvents to reduce the production cost of perovskite solar cells by half and decrease climate impact by over 80%. AI-based reverse engineering technology was used to identify optimal conditions for efficiency and sustainability.
A new nanostructure acts like a wire and switch that can control the flow of quantum quasiparticles called excitons at room temperature. The transistor-like switch developed by University of Michigan engineers could speed up information transfer or enable circuits that run on excitons instead of electricity.
Researchers at The University of Osaka have created an eco-friendly organic liquid that phosphoresces at room temperature, overcoming issues with molecular aggregation and stability. This discovery offers potential applications in electronic displays, particularly for wearable devices.
The new Harvard device can turn purely digital electronic inputs into analog optical signals at high speeds, addressing the bottleneck of computing and data interconnects. It has the potential to enable advances in microwave photonics and emerging optical computing approaches.
Scientists developed a novel synthesis method that enables precise control of emission properties in perovskite quantum dots. The approach results in enhanced stability, efficiency, and tailored emission across the Rec.2020 red spectrum. This breakthrough paves the way for high-performance pure-red light-emitting diodes.
Researchers are combining machine learning algorithms with neuromorphic hardware to build brain-like devices that can learn from data and adapt in real-time. These devices have the potential to revolutionize industries such as manufacturing by enabling machines to sense their environment, adapt to new tasks, and make decisions without ...
Researchers have discovered a phenothiazine-based self-assembled monolayer that reduces losses in tin perovskite solar cells, achieving an efficiency of 8.2%. This breakthrough paves the way for further improvements to pure tin perovskite tandem solar cells.
Researchers at the University of Minnesota have discovered a way to manipulate charge flow in ultrathin metallic films using light. This breakthrough could lead to energy-efficient optical sensors, detectors, and quantum information devices.
Scientists have developed organic molecules that can detect and manipulate electron spins using light, opening pathways for quantum sensing and molecular-based quantum information technology. The molecules' optical properties are linked to their electron's spin state, allowing for controlled interaction between the two spin radical units.
Researchers create metasurfaces to control photons and entangle them for quantum computing and sensing. The discovery could lead to miniaturized optical setups with improved stability, robustness, and cost-effectiveness.
Professor Kanatzidis has been awarded the 2025 Albert Einstein World Award of Science for his groundbreaking contributions to shaping the field of solar photovoltaic materials. His work has led to the development of high-performance, low-cost, and durable photovoltaic semiconductors.
Researchers created BP/ReS2 heterojunctions using LPE and ME methods, enhancing stability and nonlinear optical properties of 2D materials. The results indicate significant application potential in all-solid-state pulsed lasers operating in the 2 μm band.
This innovative approach enables direct growth of lead-based materials on silicon circuits, eliminating pre-synthesized materials and assembly steps. High-performance devices, such as image sensors and displays, are achieved through low-temperature processes and advanced encapsulation techniques.
Researchers from Université Laval designed an ultra-fast and greener optical chip that can transfer massive amounts of data at speeds of 1,000 gigabits per second while reducing energy consumption. This innovation uses the phase of light to add a new dimension to the signal, reaching unprecedented performance levels.
Researchers at Harvard and TU Wien have developed a new type of tunable semiconductor laser with smooth, reliable, and wide-range wavelength tuning in a simple chip-sized design. This innovation could replace many types of tunable lasers with a smaller, more cost-effective package.
Researchers from Institute of Science Tokyo have developed (Al,Ga,Sc)N thin films with record-high scandium levels, enabling efficient data storage and reducing power consumption. The films also show promise for noise filters and optical computing applications.
Researchers have designed a thermal management scheme to efficiently cool high heat flux switch chips in co-packaged optics (CPO), addressing signal crosstalk and temperature homogeneity issues. The solution can be applied to CPOs with data rates of up to 51.2 Tbit/s, releasing the performance potential of this technology.
Researchers discovered a deeper understanding of the energy back transfer (EBT) mechanism in upconversion luminescent materials. The study found that high power densities induce a transition from green to yellow luminescence, while maintaining bright green luminescence within a measured range.
Researchers discovered the spin configuration of excited states in a typical zero-dimensional metal halide material, challenging traditional views on dual-peak emission. The study reveals that the low-energy peak includes both bright and dark states, while the high-energy peak is from a pure bright state.
A research team has developed a monolithically integrated programmable all-optical signal processing chip with filtering, regeneration, and logic operation functions. The chip harnesses the advantages of silicon photonics to deliver high-speed performance, advanced modulation formats, and wavelength transparency. The technology paves t...
The University of Ottawa's SUNLAB has developed a simulation model for multi-junction photonic power converters, which enable the conversion of laser light into electrical power with higher efficiencies and voltages. This technology could lead to more reliable telecommunication networks, reduce costs by enhancing systems performance, a...
Researchers have optimized transport layers in PSCs and PeLEDs using self-assembled molecules, enhancing efficiency and stability. SAMs regulate interfacial properties, including charge transport and wettability, to achieve superior interface-modification capabilities.
Researchers at Tokyo University of Science developed a self-powered artificial synapse capable of distinguishing colors with remarkable precision. The device generates electricity via solar energy conversion, making it suitable for edge computing applications.
A new world record has been set for petabit-class transmission over a distance of 1,808 km using a 19-core optical fiber with low loss across multiple wavelength bands. The demonstration marks a major step forward in developing scalable, high-capacity networks and addressing the world's growing demand for data.
Researchers have developed a new bluish-green emitting phosphor using silica nanoparticles, achieving a 48% increase in emission intensity compared to traditional methods. The phosphor exhibits significant thermal stability, making it suitable for high-power LEDs and paving the way for brighter, more energy-efficient LED lights.
University of Missouri scientists have developed an ice lithography technique that etches small patterns onto fragile biological surfaces without damaging them. The method uses frozen ethanol to protect the surface and apply precise patterns.
Researchers developed a synergistic post-treatment modification technique to enhance the efficiency of thermally evaporated blue PeLEDs. The approach resulted in highly stable films with low defect density, achieving a maximum external quantum efficiency of 6.09% and brightness exceeding 1325 cd/m².
Researchers at U of A create a transistor that operates at speeds over 1,000 times faster than modern computer chips. The breakthrough uses quantum effects to manipulate electrons in graphene, enabling ultrafast processing for applications in space research, chemistry, and healthcare.
Researchers have developed a dual serrated structure that reduces reflection losses in all-perovskite tandem solar cells, leading to a 18.34% increase in efficiency. The design features a 'photon maze' effect, trapping light within the cell and making it easier for photons to enter but difficult for them to exit.
Researchers have developed a fiber-based dendritic structure that utilizes adaptive plasticity and Hebbian learning to create a self-sustaining optoelectronic platform. This system demonstrates potential for ultra-fast temperature stabilization with real-time operation at high signaling and sampling rates.
Researchers at Pohang University of Science & Technology (POSTECH) have developed an achromatic metagrating that handles all colors in a single glass layer, eliminating the need for multiple layers. This breakthrough enables vivid full-color images using a 500-µm-thick single-layer waveguide.
Scientists have developed a new microscope that accurately measures directional heat flow in materials. This advancement can lead to better designs for electronic devices and energy systems, with potential applications in faster computers, more efficient solar panels, and batteries.
Researchers develop new method to simulate Pockels effect, a key phenomenon in optoelectronics, using Density Functional Theory and finite differences. The approach enables accurate modeling of barium titanate's behavior, paving the way for more efficient devices.
Researchers have developed a single-layer antireflective coating using polycrystalline silicon nanostructures that sharply reduces sunlight reflection across a wide range of wavelengths and angles. The coating achieves unprecedented results for a single-layer design, setting a new standard for solar cells.
Researchers at the University of Michigan have discovered a mechanism that holds new ferroelectric semiconductors together, enabling high power transistors and sensors. The team found an atomic-scale break in the material that creates a conductive pathway, allowing for adjustable superhighways for electricity.
Researchers have developed an on-chip twisted moiré photonic crystal sensor that can simultaneously measure wavelength, polarization, and perform hyperspectral imaging. The device uses MEMS technology to control the twist and distance between layers in real time.
Researchers found that terahertz (THz) radiation affects not only cell membranes and organelles but also the aqueous environment, changing water molecule vibrations and cellular metabolism.
Novel strategies utilizing Bound States in the Continuum (BIC) significantly improved Q-factor values, with records of up to 92,091. A breakthrough electrically pumped BIC laser was successfully demonstrated with a Q-factor of 11,776.
Researchers developed a technique that allows clear visualization of blood vessels beneath tissues without invasive procedures, overcoming limitations of traditional technologies. This achievement has significant implications for neurosurgery, transplantation, and vascular pathology diagnostics.
Scientists at POSTECH and University of Montpellier successfully synthesized wafer-scale hexagonal boron nitride (hBN) with an AA-stacking configuration using metal-organic chemical vapor deposition (MOCVD). This achievement introduces a novel route for precise stacking control in van der Waals materials.
Researchers have developed a photonic-chip-based amplifier that achieves ultra-broadband signal amplification in an unprecedentedly compact form. The new amplifier uses optical nonlinearity to boost weak signals while keeping noise low, making it highly adaptable to various applications beyond telecommunications.
Perovskite LEDs have shown great potential for commercialization due to their lower costs and environmental impact. However, longevity remains a significant issue that needs to reach around 10,000 hours for a positive environmental impact.