Articles tagged with Perovskites
A research team at Zhejiang University has demonstrated a simple method to overcome the problem of Auger recombination in perovskite lasers, leading to record-setting performance for near-continuous operation. By suppressing this process, researchers were able to sustain carrier densities required for efficient stimulated emission.
Researchers challenge conventional wisdom that grain boundaries in perovskite solar cells are detrimental to performance. Grain boundaries act as 'highways' for charge separation, improving photocurrent and carrier extraction in high-efficiency devices.
Researchers developed a hybrid-interlocked self-assembled monolayer strategy to enhance device stability in perovskite indoor photovoltaics. The optimized devices achieved record indoor power conversion efficiency of 42.01% and projected T90 lifetime approaching 6000 hours.
Scientists at Kyushu University have created a solid oxide fuel cell that operates at a low temperature of 300°C, overcoming a major hurdle in their development. The breakthrough uses scandium to create a 'ScO6 highway' for protons to travel efficiently, enabling the production of affordable hydrogen power.
Metal-halide-perovskite scintillators have made significant advancements in light yield, timing, flexibility, and multi-energy imaging. These innovations enable ultra-low-dose imaging, sub-nanosecond timing, flexible curved platforms, and stacked scintillators with interlayer optical filters.
Researchers developed a new method to activate water-splitting catalysts at an oven temperature of just 300 °C, boosting oxygen evolution efficiency by nearly sixfold. This breakthrough enables large-scale energy storage and conversion using solar and wind power.
Scientists investigated how Pr content impacts perovskite oxide crystal structure and oxygen exchange. Higher Pr content led to disorder phase transition and improved orbital hybridization, accelerating oxygen exchange. The discovery provides guidance for designing high-performance SOEC anodes.
Researchers introduced a novel approach for fabricating high-performance near-infrared perovskite light-emitting diodes (NIR-PeLEDs) using triple-source thermal co-evaporation. This strategy directly forms the black-phase α-FACsPbI3 perovskite, overcoming phase instability and surface roughness issues.
Researchers developed a protective coating called PDAI2 to shield perovskite solar cells from space damage. The coating helps the cells survive in harsh conditions, allowing for longer operation times and improved efficiency.
Researchers used AI to predict key properties of halide perovskites, enabling rapid design and optimization of more efficient solar materials. The findings provide valuable insights into the rational design of halide perovskites with tailored properties.
Researchers developed a silane coupling agent strategy that improves interfacial adhesion and charge extraction in wide-bandgap perovskite solar cells. This approach reduces defects and non-radiative recombination, leading to high efficiency and stability.
Researchers introduce a simple protocol to simultaneously passivate defects at the SnO2/perovskite bottom interface and the perovskite/carbon top interface of hole transport layer-free carbon-electrode perovskite solar cells. The result is a champion device delivering high power conversion efficiency and ambient durability.
Researchers developed a strategy to control high-concentration precursor crystallization, enabling the formation of thick, high-quality perovskite films that minimize photon loss. The optimized bifacial solar cells achieved record-breaking power conversion efficiency and outstanding operational stability.
Researchers investigated pulsed operation of perovskite LEDs to understand the role of mobile ions in maintaining stable light emission. They found a constant transient electroluminescence signal with higher intensity at higher duty cycles, which decreased with increasing duty cycle.
A comprehensive cost-effectiveness analysis of perovskite solar cells offers insights into their potential to outperform crystalline silicon ones. The study highlights the need for improvements in efficiency, yield, and stability, as well as reduced materials and equipment costs.
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.
The NIMS Award 2025 honors Prof. Tsutomu Miyasaka, Prof. Henry J. Snaith, and Prof. Nam-Gyu Park for their pioneering work on perovskite solar cells and the incorporation of a critical element that improved stability and efficiency. The award ceremony will take place at the Tsukuba International Congress Center on November 11.
Researchers successfully encapsulated perovskite quantum dots in a covalent-organic framework, improving the performance of photocoupled CO2 electroreduction. The composite material exhibits high charge separation efficiency and increased RDS energy decrease.
Researchers develop a bulk passivation technique adding TEMPO to perovskite films, boosting efficiency beyond 20% and maintaining performance for several months. The approach is fast, solvent-free, and compatible with roll-to-roll processing, making it promising for large-scale production.
A new process has been developed to extend the lifetime of perovskite solar cells, allowing them to maintain their efficiency for longer periods. The study found that incorporating formamidinium cations into methylammonium-based perovskites increased their durability and stability.
Researchers introduce a redox energy barrier management approach to boost tin-lead perovskite solar cell performance. The innovation uses an organometallic complex to protect Sn2+ from oxidation and passivate defects.
Researchers developed a simple, economical and environmentally friendly purification method for mullite-type bismuth ferrite, improving its efficiency in producing green hydrogen. The process uses light and glycerol to eliminate unwanted compounds, resulting in high-purity material suitable for photoelectrochemical reactions.
Researchers from Institute of Science Tokyo developed a novel catalyst that efficiently produces sulfones at low temperatures, achieving high selectivity and reducing precious metal consumption. The new SrMn₁₋xRu_xO₃ catalyst offers significant advantages over conventional systems, making it suitable for various industries.
Researchers developed a technology to produce high-quality p-type transistors using vapor-deposited tin-based perovskites, achieving high mobility and low power consumption. The innovation enables large-area device arrays and reduces manufacturing costs.
A research team at DGIST has developed a world-first perovskite-based betavoltaic cell with stable power output and high energy conversion efficiency by embedding carbon-14-based quantum dots into the electrode and enhancing the perovskite absorber layer's crystallinity. The technology offers a promising next-generation energy solution...
A new study reveals that incorporating CPMAC into perovskite solar cells enhances energy efficiency and stability, reducing defects in the electron transfer layer and improving performance.
Chinese scientists enhance adhesion of top layers to improve flexible tandem solar cells' performance by utilizing an antisolvent-seeding strategy. The new approach resulted in a stable efficiency of 24.6%, one of the highest reported values for flexible thin-film solar cells.
A new publication enables traditional VCSEL to achieve low-threshold, tunable single-mode lasers by combining phase-change perovskite with a vertical cavity structure. The device exhibits a broad tuning range and high spatial coherence, making it suitable for probing superconducting materials.
Researchers observed and identified the water-induced degradation mechanism of perovskite at the atomic scale, proposing strategies to enhance its stability. Coating nanocrystal surfaces with ligands or hydrophobic polymers slows down degradation rates, providing critical insights into the fundamental stability issues of perovskite.
Researchers created solar cells using simulated Moon dust, converting sunlight into energy efficiently and withstanding radiation damage. The new panels produced up to 100 times more energy than traditional solar panels, cutting launch mass by 99.4% and transport costs by 99%.
Researchers at EPFL have developed a method to stabilize wide-bandgap perovskites using lattice strain, reducing energy losses and improving stability. This approach enables the incorporation of rubidium ions into the structure, resulting in increased efficiency and reduced photovoltage loss.
A new method using in situ chlorination post-treatment has been proposed to renovate both deep-state and shallow-state defects in quasi-2D perovskites, significantly enhancing their optoelectronic performance. The resulting deep-blue light-emitting diodes achieved an external quantum efficiency of 6.17%.
Researchers employed scanning ultrafast electron microscopy to study photo-induced surface carrier diffusion in 2D perovskites. They found significantly higher rates compared to bulk materials, with some rates exceeding 20 times the bulk values.
The study discovered a giant deformation potential of 123 eV, leading to exceptionally long polarization response times and enhanced spin lifetimes. Small polaron formation was confirmed through various techniques, including optical Kerr spectroscopy, X-ray diffraction, and phonon dynamics.
Researchers discovered that the spatial arrangement of nearest Br-N atomic pairs is the major factor on organic-inorganic interactions, leading to emission enhancement under high pressure. The study provides valuable guidance for designing materials with targeted optical properties.
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.
Researchers have discovered a way to trap iodine in perovskite solar cells using alumina nanoparticles, enhancing lifespan and stability. The modified solar cells maintained high performance for over two months under extreme conditions.
Researchers are developing in-situ optical analysis technology to improve quality control and scalability of perovskite solar film production. The goal is to enable widespread rooftop installations, estimated to be worth £250bn in the UK alone.
Researchers from the University of Oklahoma have discovered a way to stabilize quantum dots, enabling continuous emission at room temperature. This breakthrough could make quantum computing and communication devices more efficient, cheaper, and appealing.
A novel bifacial linker, potassium benzyl(trifluoro)borate (BnBF3K), has been developed to prevent heterointerfacial delamination in flexible perovskite solar cells. This study significantly enhances device performance and mechanical stability by optimizing adhesion at the SnO2/perovskite interface.
A research team at POSTECH developed a synthesis method that precisely controls the size and shape of perovskite nanocrystals using liquid crystalline antisolvents. The method produces uniformly sized particles without additional purification processes, accelerating commercialization of optoelectronic devices.
Thermal stress is the key factor in degrading metal-halide perovskites used in solar cells. Researchers propose increasing crystalline quality and using buffer layers to improve stability.
Researchers from Indian Institute of Technology developed bifacial perovskite solar cells with a novel NiO/Ag/NiO transparent electrode, achieving high efficiency, durability, and infrared transparency. The cells demonstrated impressive power conversion efficiencies and high bifaciality factors.
Researchers at NC State University have developed a new technique to tune the optical properties of quantum dots using light, reducing energy consumption and environmental impact. This method allows for precise control over the bandgap, enabling the creation of high-quality perovskite quantum dots for optoelectronic devices.
Researchers at the University of Sheffield have developed a new type of back-contact solar cell design using perovskite material and tiny grooves in plastic film. The technology enables scalable, low-cost manufacturing and avoids expensive rare earth metals, making it sustainable and affordable.
Scientists at Linköping University have created a sustainable recycling process for perovskite solar cells, allowing all parts to be reused without hazardous solvents. The recycled cell retains the same efficiency as the original, paving the way for efficient energy harvesting and reduced e-waste.
Researchers used neutrons to study the magnetic structure of layered perovskites, resolving a long-standing mystery. The study reveals a spiral magnetic structure, which is essential for understanding the material's promising magnetic and electric properties.
Teams from HZB and Humboldt University Berlin have developed a new tandem solar cell combining CIGS with perovskite, achieving a world record efficiency of 24.6%. This breakthrough could lead to higher efficiencies of over 30%, making CIGS-perovskite tandem cells a promising technology for sustainable energy solutions.
A recent study by Ritsumeikan University researchers analyzed the durability of flexible perovskite solar cells under damp heat conditions. The findings revealed that high humidity leads to degradation, while a high-quality barrier film retained most power conversion efficiency, making it crucial for long-term stability.
Researchers have developed a perovskite X-ray detector that uses cascade engineering to reduce dark current, enabling high-quality medical images at ultra-low doses. The device achieved a detection limit of 100 nGy·s−1, a significant improvement over previous limits.
A new study reveals that gamma-ray exposure can passivate some defects while activating others, leading to improved recombination dynamics. The concentration of dominant 0.5 eV defects decreases with increasing dose, while the diffusion coefficient increases by orders of magnitude.
Researchers are exploring halide perovskites, a material that converts sunlight into energy efficiently. The team created distinct properties using ultra-cool methods, enabling mass production of solar cells.
Researchers have developed a novel method to overcome challenges in manufacturing thin-film perovskites suitable for micro-LED displays. The technique enables seamless integration into ultrahigh-resolution micro-LEDs with pixels less than 5 μm, achieving remarkable results including electroluminescence efficiency and brightness.
Researchers demonstrated the existence of an Exciton-Polaron in a quasi-one-dimensional hybrid perovskitoid, showcasing its potential for optoelectronic applications. The study reveals that the one-dimensional lattice is soft and susceptible to reorganization, enabling tunable frameworks for new quantum technologies.
Researchers designed a self-assembled material to address energy level mismatches and degradation at Sn-Pb perovskite interfaces, resulting in high-efficiency devices with enhanced stability. The strategy achieved a PCE of 23.45% and improved shelf storage stability.
Researchers have combined two emerging solar cell technologies, perovskite and organic solar cells, to create a tandem solar cell that achieves a record level of 25.7% efficiency while minimizing carbon footprint. The new combination overcomes previous limitations by utilizing novel materials and passivation layers.
Researchers from Institute of Science Tokyo successfully developed a multi-element perovskite catalyst that selectively oxidizes light alkanes to alcohols with high yield and selectivity. The breakthrough catalyst operates under mild conditions and exhibits excellent stability and reusability.
Rice scientists develop new nanomaterial that kills bacteria in biofluids under visible light, with minimal degradation and low lead leaching. The findings suggest potential applications in water treatment and therapeutics.
Researchers developed a new amidinium-based coating that extends the life of perovskite solar cells, tripling their T90 lifetime and doubling their stability. The coated cells achieved a record-breaking 26% efficiency and withstood harsh conditions for up to 1,100 hours.
Researchers at the University of Surrey have developed a strategy to improve both the performance and stability of perovskite-based solar cells. By introducing an iodine-reducing agent, they increased the efficiency and extended the lifespan of the devices.