Articles tagged with Optoelectronics
Researchers from Tokyo University of Science developed a high-quality crystalline interface using quasi-homo-epitaxial growth, which eliminated mobility issues and enabled spontaneous electron transfer. This breakthrough could lead to highly efficient flexible solar cells and wearable electronic devices.
A novel, simple, and extremely compact terahertz radiation source has been developed at TU Wien, enabling high intensities and small size. The technology uses resonant-tunnelling diodes and can be used in various applications such as material testing, airport security control, radio astronomy, and chemical sensors.
The project aims to decorate DNA sequences with colourful nano-lights to enable faster read/write processes and novel data encoding concepts. By using unique recognition capabilities of single DNA strands, the consortium plans to develop novel nanomaterials, algorithms, and reader devices for efficient data storage.
A new class of faster and more powerful semiconductors is being developed by UMass Lowell scientists to enhance wireless communication and digital imaging. The $1.7M NSF project aims to improve infrared optoelectronic devices, enabling better intracellular imaging, night vision, and quantum and 5G communication.
Mona Jarrahi, a UCLA professor, has been awarded the IET A F Harvey Engineering Research Prize for her pioneering work in utilizing the electromagnetic spectrum. Her research aims to develop a hybrid methodology for designing systems with operation frequencies beyond traditional transistor technologies.
Researchers have created a new liquid crystal compound with ultra-short helix pitch and spiral ordering, making it ideal for fast-switching devices. The material's thermally and chemically stable structure allows for easy customization of pitch lengths.
Scientists at Chalmers University of Technology discovered a way to create a stable resonator using two parallel gold flakes in a salty aqueous solution. The structure can be manipulated and used as a chamber for investigating materials and their behavior, with potential applications in physics, biosensors, and nanorobotics.
Researchers from OIST and Kyushu University have developed a method to generate a glow-in-the-dark light using organic materials. The new method produces emissions that last for over one hour at room temperature, improving performance by tenfold compared to previous work.
On-chip frequency shifters in the gigahertz range enable precise color shifting for high-speed optical communication. This innovation has significant implications for the development of quantum computers and future network infrastructure.
Researchers have demonstrated ultrafast optical circuit switching for datacenters using integrated soliton microcombs, which can handle increasing bursty datacenter applications while reducing overheads. The proposed architecture employs a central comb system to improve power efficiency and reduce complexity.
Colloidal quantum dot technology enables infrared lasing at room temperature, paving the way for low-cost solution-processed and CMOS integrated lasing sources. The breakthrough discovery may facilitate fully integrated silicon photonics, enabling lower power consumption, higher data rates, and multi-spectral 3D imaging capabilities.
Researchers have developed a revolutionary wireless photoelectric implant that can control the activity of spinal neurons, enabling the study of neural function and the development of new treatments for neurological disorders. The breakthrough technology uses pulses of light to stimulate or inhibit specific spinal-cord neurons, potenti...
A team of researchers at Aarhus University aims to develop an optical sensor using terahertz light to decode the direction of tiny magnetic 'tornadoes' called skyrmions. Skyrmions offer a promising candidate for future bits in computer technology, requiring less power and generating less heat than current methods.
Lehigh University will lead a five-year, $25 million research collaboration to develop new semiconductor materials and scalable manufacturing processes for advanced optoelectronic devices. The initiative aims to transform fields like information technology with quantum technologies.
The Center for Integration of Modern Optoelectronic Materials on Demand will develop new semiconductor materials and scalable manufacturing processes for applications in displays, sensors, and quantum communication. The center aims to connect academic research with industrial and governmental needs, educating a diverse STEM workforce.
Berkeley Lab researchers developed a method to increase the efficiency of LED devices by applying mechanical strain to thin semiconductor films. This approach reduces exciton annihilation, allowing for high-performance LEDs even at high brightness levels.
A novel engineered tunneling layer with enhanced impact ionization improves detection capabilities in graphene/insulator/silicon heterostructure photodetectors. The technique achieves a champion responsivity of ~1.03 AW-1 at a reverse bias of -10 V, showing great potential applications in sensing and communications.
Researchers investigated thermally activated delayed fluorescence (TADF) with weak light-matter coupling to improve OLED color purity. Using a Fabry-Pérot cavity, they found that weak coupling enhances emission spectra and increases light extraction efficiency.
Researchers at Aalto University have discovered that fibrous red phosphorous, when electrons are confined in its one-dimensional sub-units, shows large optical responses. The material demonstrates giant anisotropic linear and non-linear optical responses, as well as emission intensity.
Physicists have established a fundamental limitation of light confinement in nano-scale systems, with a critical dimension threshold of around 250nm. This discovery has implications for various fields such as material science and quantum technologies.
The NTU team created flexible UV light sensors that are 25 times more responsive and 330 times more sensitive than existing sensors. These sensors can be used in wearable devices to monitor personal UV exposure and reduce the risk of skin cancer.
Researchers have developed a self-powered, UV photodetector using coordination nanosheets that demonstrate exceptional photocurrent stability under air exposure. The device, composed of an iron ion bonded to a benzene hexathiol molecule, retains over 94% of its photocurrent after 60 days.
Scientists from Rensselaer Polytechnic Institute have successfully created a novel optoelectronic phenomenon in MoS2 by breaking its inversion symmetry using strain gradients. This breakthrough demonstrates the potential for remote thermal sensing and opens up new possibilities for designing high-efficiency optoelectronics.
Researchers have introduced a new anionic organoborane compound, borafluorene, which is a system of three carbon rings joined at the edges with a boron atom. The team used carbenes to stabilize the elusive anions and demonstrated their potential as chemical building blocks.
The 2Exciting Network aims to train 15 Early Stage Researchers in scientific and soft skills, focusing on 2D semiconductors and optoelectronics. The network brings together academic groups and companies to develop innovative optoelectronic devices for telecommunications and next-generation technology applications.
Researchers used advanced spectroscopy and electronic transport techniques to determine charge accumulation and dynamics in resonant-tunneling diodes. The study aims to develop novel RTDs with optimized charge distribution to enhance photodetection efficiency or minimize optical losses.
Researchers at Skoltech have proposed a photonic device using liquid crystals in optical resonators to study their optical properties. The device can simulate electronic devices using photons, potentially increasing processing speed and reducing energy consumption.
Researchers used machine learning to identify different areas of interest on 2D materials, such as doping, strain, and electronic disorder. This automation could significantly accelerate the application of these materials in next-generation energy-efficient computing and smart-phones.
A team of scientists has developed a protective coating made from ultrathin gallium oxide to shield 2D materials from damage. This innovation enables the use of extremely thin materials in electronics, promising lower energy consumption and increased efficiency.
Researchers have created microfabricated elastic diamonds that can stretch up to 10% without losing their shape. This controlled elasticity changes the diamond's electronic properties, including a reduced bandgap, making it suitable for advanced electronics and quantum information technologies.
Researchers from RUDN University developed a universal approach to synthesizing thienoindolizine derivatives using two- and three-component thienopyridine reactions. This method allows for the formation of compounds with different functional groups, expanding their potential applications in pharmaceutics and optoelectronics.
Researchers developed silicon-polymer hybrid modulators that can transmit 200 gigabits of data per second at up to 110 °C, enabling fast and reliable optical data interconnections in harsh environments. This breakthrough could help reduce datacenter cooling costs by nearly 40%.
Researchers developed a low-cost, flexible optoelectronic cell that can detect light intensity and perceive color. The device uses bandgap-gradient perovskites to sense spectral content with high resolution.
Researchers discovered a two-layer buckled honeycomb structure of blue phosphorene with extremely stable metallic properties, promising applications in nano- and optoelectronics.
Researchers have developed a new method for creating multicolor single-mode microlasers capable of emitting over the full visible spectrum. The lasers are achieved through heterogeneously coupled cavities constructed with three spherical microcavities and distinct gain media.
Researchers have developed a novel powder method for efficiently evaluating electro-optic coefficients, enabling the discovery of promising new crystals. The approach uses second harmonic generation, infrared reflectance spectrum, and Raman spectroscopy to predict electro-optic coefficient magnitude.
Black phosphorus has potential for emerging devices, including medical imaging and environment monitoring, thanks to its versatility and manipulation as a 2D material. The material's ability to tune electron energy levels makes it suitable for electro-optic modulation, which is essential for faster computing and data communication.
Researchers propose a novel vdW heterostructure for MIR light-emission applications using BP and TMDC materials. The BP-WSe2 heterostructure shows a type-I band alignment, enhancing MIR photoluminescence by ~200%. In contrast, the BP-MoS2 heterostructure forms a type-II band alignment, enabling efficient MIR electroluminescence.
Researchers propose orbital engineering to overcome efficiency limitations in high-Al-content AlGaN quantum wells. By inclining the quantum well plane, they modify energy variations induced by orbital coupling, enhancing quantum confinement and radiative transition rates.
A team of scientists has developed a new parametric oscillator in the optoelectronic domain with unique phase-controlled operation, enabling stable and tuneable multimode oscillation. This allows for applications in microwave signal generation, oscillator-based computation, and radio-frequency phase-stable transfer.
Researchers from Osaka University and collaborators uncover quasiparticle interactions in CNTs using terahertz radiation. They identify two key mechanisms explaining data, shedding light on ultrafast electrical conduction and advancing optoelectronic devices.
Scientists from Skoltech developed a novel method to fine-tune the optoelectrical properties of single-walled carbon nanotubes by applying an aerosolized dopant solution. The new approach enables uniform, controllable and easily reproducible aerosol doping, breaking new ground for flexible and transparent electronics.
A new surface tension-controlled crystallization method has been developed to prepare large 2D perovskite single crystals, achieving exceptional device performance. The crystals exhibit anisotropy-dependent optoelectronic properties, with high responsivity and external quantum efficiency.
Theoretical and experimental investigations confirm the Marcus hopping model for electronic transport in organic films. The study verifies the 'inverted Marcus regime' where higher voltage generates lower current, improving understanding of organic devices.
Researchers at Lobachevsky University have synthesized a hexagonal modification of silicon with enhanced optical properties, which can be used in optoelectronic integrated circuits. The material was created using ion implantation and exhibits an associated emission band in the infrared region.
Researchers studied electronic structures of van der Waals heterostructures under applied vertical electric field, revealing Coulomb interaction's impact on bandedges. This nonlinear variation is attributed to interlayer charge transfer, essential for nanoelectronic device applications.
Blue phosphorus has been successfully mapped and measured by a team from HZB around Evangelos Golias, revealing a unique honeycomb structure and large semiconducting band gap of seven times larger than black phosphorus. The material's properties are influenced by the substrate, making it an essential parameter for optoelectronic applic...
Researchers at NIST developed a filtering method to reduce interference in electro-optic lasers, allowing for ultrafast pulses that arrive 100 times faster. This technology could enable real-time hyperspectral imaging and other applications.
Researchers have successfully fabricated tiny on-chip lithium niobate modulators with ultra-high data transmission speeds and lower energy consumption. The breakthrough technology has the potential to revolutionize the optoelectronic industry by enabling high-speed, low-power, and cost-effective communication networks.
Researchers have created new 'switches' that respond to light using combined light-sensitive molecules with layers of graphene and other 2D materials. This technology could lead to programmable applications in smart electronics, sensors, and flexible devices.
Researchers created a tiny electro-optic modulator that translates electrical signals into light at speeds 10s of times faster than current technologies. The device uses plasmonics and has the potential to integrate photonics and electronics on a single chip, revolutionizing information technology.
Researchers at Oregon State University have designed the world's smallest electro-optic modulator, which could lead to major reductions in energy consumption for data centers and supercomputers. The device is roughly the size of a bacterium and can be 100 times more energy efficient than previous devices.
Researchers detected graphene's out-of-plane heat transfer in van der Waals heterostructures, with implications for ultra-fast photodetectors and optoelectronic device design. The phenomenon relies on hot electrons and hyperbolic phonons in the hBN layer.
Researchers propose using titanium nitride to replace gold and silver in optoelectronic devices, offering improved anti-corrosion and thermal stability properties. The material has shown significant Q-factor improvement in plasmon resonance, enabling the preservation of energy and wave oscillations.
Researchers developed a cost-effective optical manipulation platform to assemble electronic components using optoelectronic tweezers. The technique allows parallel micromanipulation of particles and can be used to create safer and faster-charging mobile device batteries.
INRS professors François Légaré and Federico Rosei have been elected OSA Fellows for their groundbreaking work in ultrafast molecular imaging and photonic materials development. The distinction reflects their leadership, publication record, and significant impact on optics and photonics research.
An international research team developed inkjet printing techniques for scalable mass fabrication of black phosphorous-based photonic and optoelectronic devices. The novel technique enables the production of functional devices with excellent print quality and uniformity.
The special section aims to facilitate consumer-driven advancements in wearable virtual system applications, including automotive, industrial, and military vision systems. Papers describe various approaches and technologies to address challenges such as latency, acuity, field-of-view, fashion, and donning/doffing.
Researchers at FAU have successfully assembled and tested conductors and networks made of individual molecules. The 'Lego bricks' can fabricate the smallest nanostructures under precision-controlled conditions, opening up possibilities for optoelectronic applications.
Researchers at the University of Exeter have developed a pioneering technique to engineer computer chips more easily and cheaper than conventional methods. The breakthrough could revolutionize the production of optoelectronic materials, enabling advancements in renewable energy, security, and defence technologies.