Articles tagged with Perovskites
A new perovskite detector film has been developed to improve X-ray imaging at lower doses, reducing image noise and preserving fine structural details. The detector's internal uniformity helps suppress noise, making it possible to capture clear images at ultralow doses.
The research team developed a novel X-type quasi-two-dimensional perovskite emitter that enables thermodynamically controlled crystal growth and precise crystallization control in vacuum deposition. This enabled the creation of highly uniform, high-efficiency, and high-color purity PeLEDs.
Researchers developed a coordination-regulated strategy to stabilize wide-bandgap perovskites, achieving an efficiency of 22.21% and retaining over 91% of performance after 2000 hours. The optimized cells were integrated with CIGS bottom cells to deliver an overall efficiency of 29.71%.
Researchers develop a new strategy for producing negative thermal expansion (NTE) materials, enabling safer and more efficient synthesis. The approach combines reverse coprecipitation with oxidation in a single step, eliminating the need for harsh chemicals and reducing environmental impact.
A research team at Pohang University of Science & Technology has developed a next-generation semiconductor with enhanced performance and stability. The breakthrough solution, called 'Volatile Surface Reconstruction,' converts unreacted tin ions into a volatile compound that volatilizes, while creating a self-protective layer to shield ...
Researchers aim to develop reliable power generation in harsh environments, including space and underwater settings, using perovskite solar cells. Advances in material composition and device engineering can overcome instability issues, enabling long-term reliability and performance.
Researchers develop a new strategy to control electronic and magnetic properties of oxide thin films through nanoparticle exsolution, resulting in giant insulator-to-metal transition and room-temperature superparamagnetism
Researchers developed a buried interface engineering strategy to directly tame lattice strain at its origin, improving perovskite stability and power conversion efficiency. The innovative design promotes a low-strain lattice framework through optimized molecular modification, chemical passivation, and robust Lewis acid-base interactions.
Researchers developed a solution to improve the mechanical stability of perovskite/silicon tandem cells, achieving a record-breaking power conversion efficiency of 30.04%. The uniform submicron pyramids on ultrathin silicon wafers significantly improved device performance and flexibility.
Direct-type perovskite detectors have surpassed commercial alternatives in sensitivity and detection limits, but scaling up for large-area flat-panel X-ray imaging remains a challenge. The review discusses scalable material fabrication, backplane integration, and imaging performance optimization to enable widespread adoption of high-qu...
Researchers introduce a photoisomeric additive that anchors mobile ions and stabilizes the material during UV exposure, improving device performance. The study shows improved film quality, reduced degradation, and enhanced power conversion efficiency.
Researchers optimize blue perovskite LEDs by introducing ordered dipolar PVDF, improving carrier transport and recombination. The breakthrough results in world-record device performance, exceeding 43.9 lm W−1 peak power efficiency.
A deep learning model combines knowledge from different catalyst families to identify a top-performing green hydrogen catalyst. The AI correctly predicted the activity ranking of 12 tested catalysts within a previously unexplored material family.
Researchers have developed a new passivation strategy to improve the efficiency and operational stability of perovskite/silicon tandem solar cells. The method uses polystyrene nanospheres as a template to deposit an insulating layer, suppressing electrical leakage and achieving high power conversion efficiencies.
Researchers used advanced modelling to identify key losses in perovskite/CIGS tandems, proposing a three-step optimization strategy to reach theoretical potential. The study also considered real-world operating conditions and found the devices maintain high efficiency under diffuse light and varying temperatures.
Researchers developed an additive design strategy to control crystallization in all-perovskite tandem solar cells, achieving a certified power conversion efficiency of 30.3%. The strategy promotes homogeneous nucleation and uniform crystal growth, improving film uniformity and reducing defects.
Researchers at Rice University have developed a method to make perovskite-based photovoltaics more durable by adding two key ingredients, skipping the yellow phase and degrading slower. The films retain 98% of their initial efficiency even after 1,200 hours of exposure.
Researchers at Rice University have engineered a new multiferroic material that exhibits orders of magnitude higher performance at room temperature than its parent material. The new material shows a 10-fold increase in magnetization and a 100-fold increase in magnetoelectric coupling, making it promising for low-energy computing.
Researchers have developed a perovskite diode that can convert sunlight to electricity and emit light with high efficiency, resolving the challenge of doing both. The device achieves a world-record 26.7% efficiency in converting sunlight to electricity and 31% efficiency in emitting light.
Researchers develop a novel surface polarization strategy that pushes device efficiency beyond 26% while dramatically enhancing operational stability. This approach utilizes intrinsic surface defects as anchoring sites for dipolar molecules, transforming flaws into functional advantages for interfacial engineering.
Researchers develop a breakthrough molecular design strategy to push PTAA-based PSCs beyond 26% efficiency by addressing carrier transport challenges at 2D/3D heterojunctions. The design enhances hole extraction through π-conjugation extension of triphenylamine-based semiconducting ligands.
Researchers developed a method that improves perovskite solar cell performance by triggering molecular interactions at the interface between two films, resulting in more efficient and durable material. The technique achieved a power conversion efficiency of 25.61%, surpassing previous records.
Researchers developed a novel spatial-confinement strategy to stabilize high-efficiency perovskite solar cells. The new design creates a 'molecular lock' at the interface, improving durability and thermal cycle stability.
Researchers developed a language-model-guided robotic system for perovskite solar cell research, accelerating device fabrication and characterization. The system achieved a record-breaking power conversion efficiency of 27.0% and generated over 578 million tokens for recipe optimization.
Rice University scientists have created a new type of two-dimensional semiconductor that exhibits no distortions, allowing for efficient energy transfer. The material's performance is an order of magnitude better than previously reported perovskites, making it suitable for applications such as solar cells and tandem devices.
Researchers developed a perovskite-type ceramic catalyst that maximizes ethanol-to-hydrogen conversion through exsolution of nickel nanoparticles. The study demonstrated the importance of calcination temperature in controlling catalyst performance.
Researchers developed an innovative colloidal chemistry strategy to enhance the performance of all-perovskite tandem solar cells, achieving a power conversion efficiency of 29.76%. The unified carboxylate-based modulator system regulates nucleation dynamics, suppressing phase segregation and promoting uniform crystal growth.
TUM researchers have identified the microscopic causes of instability in perovskite solar cells and developed a strategy to prevent degradation through temperature swings. They discovered that a 'burn-in' phase triggers early loss of relative performance, but using special organic molecules as spacers can stabilize the material.
This study introduces a breakthrough approach to regulate mixed-valence states in perovskite electrodes for VRFB, offering valuable insights into high-performance metal-based electrocatalysts. The findings highlight the importance of interdisciplinary research in materials science and electrochemistry.
Researchers at UCLA have developed a strategy to improve the efficiency of electrical current entering perovskite semiconductors, enabling faster and lower-power devices. By creating a thin, locally modified region under the metal contact, they enabled electrons to pass through the barrier using quantum mechanical tunneling.
Scientists at Linköping University successfully created quantum bits using perovskite materials, overcoming previous theoretical limitations. The breakthrough enables the creation of more affordable quantum computers with improved scalability.
A novel strategy to regulate the buried interface through multifunctional molecular bridges enables efficient defect passivation and improved energy-level alignment. This results in improved efficiency and long-term stability of perovskite solar cells.
A new optimization method for solar cells reduces voltage drops in transport layers, enabling efficient charge separation even with high extraction barriers. Researchers achieved a 24.6% efficiency by optimizing TL thickness and carrier mobility.
A new strategy for improving inverted perovskite solar cells has been developed using a crystal-solvate pre-seeding method, enabling precise regulation of the bottom interface and paving the way for high-efficiency large-area photovoltaic modules.
A team of researchers successfully enhanced the stability and performance of perovskite solar cells by introducing light-switchable molecules into grain boundaries. The new material design increases operational stability and lifespan while maintaining competitive performance.
A team of scientists and industry experts investigated the challenges of developing new solar cells, including copper indium gallium diselenide and perovskite. They recommend focusing on material resilience, stability, and sustainability to ensure long-term success.
Professor Tae-Woo Lee's research team has developed a 'Cold-injection' method to synthesize high-quality perovskite nanocrystals at room temperature, overcoming safety risks and production costs. The technology achieved near-unity photoluminescence quantum yield in a large-scale synthesis of 20 liters.
University of Oklahoma researchers created new hybrid materials that emit light quickly when exposed to radiation. The materials combine the strengths of both organic and inorganic components, resulting in a five-fold increase in light emission efficiency compared to organic molecules alone.
Researchers at ISTA discover perovskites' unique photovoltaic properties rely on structural defects, enabling long-range charge transport. This finding accelerates the transition of next-gen perovskite solar cells to real-world applications.
A new study led by University of Liverpool scientists used advanced electron microscopy techniques to analyze olivine crystals. The research found that a significant proportion of the crystals showed evidence of 'b' dislocation slip, challenging previous understanding and improving our understanding of Earth's mantle deformation.
A new method has been developed to engineer thin two-dimensional perovskite phases at the buried interface of three-dimensional perovskite solar cells, boosting device performance and operational stability. This technique improves crystallization quality and reduces defect concentrations by over 90 percent.
Researchers developed a scalable, eco-friendly method to produce chiral perovskite nanocrystal/ethyl cellulose ink with exceptional stability and processability. The new ink enables the fabrication of flexible, high-performance circularly polarized luminescent films and patterns.
A new additive, ammonia borane, is found to enhance perovskite solar cells by lifting certified efficiency to 25.98%. This improvement is achieved through a simplified coating process, cutting steps by 30% and enabling immediate upgrades for gigawatt-scale production lines.
A new study introduces a semi-transparent, color-tunable solar cell designed for flexible surfaces and windows. The 3D-printed pillar structure allows for precise control over light transmission and appearance, enabling better integration of solar technology into building façades and curved surfaces.
Researchers developed a gas-phase method to grow compact capping layers on halide perovskite single crystals, resulting in ultra-sensitive X-ray detectors with record-breaking performance. The new detectors boast improved signal stability, faster response times and lower dark currents.
Researchers developed a 3D electrical imaging technique to study defect passivation in perovskite films. The study found that bulk and surface passivation strategies improved charge transport, with filmstreated with both showing the most uniform conductive pathways.
The new vapour-deposition method delivers unprecedented durability in perovskite–silicon tandem solar cells, achieving over 30% power-conversion efficiency and operating stability exceeding 2,000 hours. This breakthrough paves the way for real-world deployment of tandem solar modules.
Researchers have developed flexible perovskite solar modules with power conversion efficiency (PCE) over 20% using acid-treated carbon nanotubes as window electrodes. These modules exhibit improved stability, bendability, and scalability, making them a promising solution for sustainable energy systems.
Researchers at the University of Surrey have developed a new method to produce flexible perovskite solar cells using single-walled carbon nanotubes (SWCNTs), achieving high power conversion efficiency and stability.
Researchers at NUS developed a new heat-resistant material to strengthen the weakest link in perovskite-silicon tandem solar cells. The cross-linked molecular layer improved durability and efficiency over 1,200 hours of continuous operation.
Researchers have developed two novel fullerene derivatives to stabilize inverted perovskite solar cells, achieving higher efficiency and stability. The new electron transport layers show improved performance and operational stability under continuous light exposure.
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.
A new self-buffered molecular migration strategy enables record efficiencies in ambient-air crystallization of perovskite films without humidity control. This innovation unlocks wider processing windows and improves stability for next-generation photovoltaic manufacturing.
The Hong Kong Polytechnic University (PolyU) has achieved a breakthrough in perovskite/silicon tandem solar cells, focusing on improving efficiency, stability and scalability. The team aims to raise the energy conversion efficiency from 34% to 40%, while promoting industry-academia-research collaboration.
Metal halide perovskites have higher X-ray sensitivities than semiconductors. However, nonlinear current responses arise under DC and irradiation, limiting device reliability. A novel AC bias capacitance readout strategy overcomes this challenge.
Researchers develop high-performance metal halide perovskite heterojunction photocatalysts to boost efficiency and transition to real-world solar-to-chemical technologies. The innovative designs and features of MHP-based heterojunctions are crucial for overcoming stability and charge recombination issues in solar-driven redox reactions.
Researchers have developed a halide perovskite volatile unipolar nanomemristor that achieves energy-efficient switching with minimal power consumption. The device uses a monocrystal nanocube with chemical composition CsPbBr3, placed between chemically inert contacts, to enable fast computation and readable memory states.
Scientists have developed a novel 'double molecular bridge' strategy to enhance charge transport in perovskite solar cells, leading to improved efficiency and reduced nonradiative losses. This breakthrough confirms the importance of interfaces in perovskite photovoltaics and opens up new avenues for interface engineering.
Researchers at the University of Cambridge have discovered ultrafast quantum light in halide perovskites, which can be harnessed for future photonic technologies. The findings suggest a practical and affordable route to explore ultrafast quantum technology.
Researchers developed a method to control crystal growth and orientation, leading to higher efficiency (25.85%) and improved stability under humid and thermal conditions. The in-situ reaction promotes directional growth, larger crystal sizes, and suppressed defect states.