Articles tagged with Perovskites
A new material synthesized by Kaunas University of Technology (KTU) Lithuanian scientists can form a molecular-thick electrode layer, enabling highly efficient perovskite single-junction and tandem solar cells. The material is cheap, scalable, and forms good contact with perovskite material.
Researchers have developed new thermoelectric materials, halide perovskites, which can convert heat into electricity at lower costs. The team improved the materials' properties through partial oxidation and doping techniques, paving the way for their use in sustainable energy applications.
Researchers at the University of Central Florida used machine learning to optimize perovskite solar cell materials, enabling flexible and efficient energy production. The study's findings have the potential to revolutionize energy usage and storage.
Scientists developed flexible and efficient transparent solar cells with colour-neutrality using silicon microwires embedded in a polymer matrix. The devices demonstrate transparency of up to 55% and excellent flexibility, making them promising for future transparent solar cells.
Engineers at Lehigh University have mapped the energy transport mechanism of chalcogenide perovskite, a promising material for solar energy generation. The research demonstrates tunability, essential for its potential applications.
Researchers at Georgia Institute of Technology developed a novel approach to improve perovskite nanocrystal durability by encasing them in a plastic and silica double-layer protection system. The new method enables high-quality, complex architecture perovskites with controlled dimensions and surface chemistry, unlocking potential for v...
Researchers at OIST have characterized the structural defects that prompt ion movement in perovskite materials, which can destabilize the device. The study's findings may inform future engineering approaches to improve perovskite solar cells' performance and stability.
Researchers at Tokyo Tech developed a novel method for low-temperature synthesis of an oxygen-substituted perovskite, which outperforms existing catalysts in producing ammonia. The new material combines Barium amide and Cerium dioxide to form BaCeO3?xNyHz at lower temperatures than traditional methods.
Scientists from NTU and UG have developed a method to identify the best pairs of materials in next-generation perovskite solar cells, which can capture more electricity. The new technique uses extremely fast lasers to observe how an energy barrier forms when perovskite is joined with a material that extracts electrical charges.
Researchers have made a breakthrough in understanding the crystalline structure of hybrid halide perovskites, which could lead to improved stability and efficiency. The study found that ferroelectric effects are possible in these materials, which could increase their efficiency.
A new type of perovskite material eliminates lead and improves stability for next-generation solar cells. These materials have been shown to be as much as 28% efficient compared to current panels capturing only 15-18%. The new organic-inorganic hybrid structure also offers a blueprint for other functional hybrid materials.
Scientists at Cambridge discovered that perovskite materials can be more efficient when their chemical compositions are less ordered, simplifying production processes and lowering costs. This is achieved by creating areas with different compositions that trap energized charge carriers, improving solar cell efficiency.
Rice University scientists have overcome a major hurdle keeping perovskite-based solar cells from achieving mainstream use by engineering defects and retaining efficiency. They replaced lead with indium, resulting in cells that can be made in open air and last for months.
McGill researchers use new instrument to study perovskites, a promising material for solar cells. The discovery reveals that these solids behave like liquids when it comes to electrons' response to light.
Scientists visualize grain structure of perovskite crystals without damaging solar cells, revealing misorientation as primary contributor to strain buildup. The discovery enables researchers to explore strategies to reduce or eliminate non-radiative recombination, a major efficiency-dampening factor in next-gen solar cells.
Researchers at Penn State have successfully increased the efficiency of perovskite solar cells by adding the protein bacteriorhodopsin, boosting it from 14.5% to 17%. This breakthrough could lead to more environmentally friendly and cost-effective bioperovskite solar cell technology.
Researchers found that functionalized carbon nanotubes enhance the interaction between perovskite and CNTs, improving their performance and stability. The study revealed a self-recrystallization process in perovskite at room temperature, which can be accelerated by frequent measurements but degrades stability.
Research uses single-particle microscopy to study electroluminescence process on individual nanocrystals. The study finds that only a small number of nanocrystals actively emit light, leading to low efficiency, and intense fluctuations in electroluminescence intensity
Scientists from NUST MISIS and University of Rome Tor Vergata developed a new approach to design perovskite solar cells using MXene, increasing efficiency by more than 25% compared to original prototypes. The innovative material enhances charge extraction through interfaces.
Researchers found that dislocations negatively impact carrier dynamics, leading to a four-fold increase in electron lifetime when defect densities are reduced. Halide perovskite has improved from 3% to 25% efficiency over the past decade.
Researchers have made significant advancements in perovskite solar cells by tuning the halide-cation mixture, delaying the collapse of the sol-gel structure and promoting the formation of the desirable α-phase. This leads to improved solar cell performance and stability.
The team discovered a new strategy to design highly efficient perovskite-based LEDs by leveraging the quantum confinement effect, which allows for superior mobility of electrons and holes. This results in attractive light-emission properties, enabling record-setting performance in terms of brightness and power efficiency.
Researchers developed a new approach to optimize highly efficient perovskite LEDs by exploring the performance of an amorphous zinc-silica-oxide system layered with perovskite crystals. The resulting devices showed improved efficiency, brightness, and light out-coupling efficiency, particularly in green diodes.
Hybrid organic-inorganic perovskites, used in optoelectronic devices, have improved efficiency after solution-treating with benzylamine. The treatment creates a two-dimensional material that restructures the material and reduces defect states.
Scientists at Kyushu University created micrometer-thick OLEDs using a hybrid perovskite approach, overcoming manufacturing constraints and color distortion issues. The devices exhibit improved efficiencies and lifetimes, paving the way for low-cost, reliable, and uniform fabrication of OLED-based displays.
A study by KU Leuven researchers has successfully stabilized perovskites, a promising type of semiconductor material for harnessing solar energy. By binding the crystals to a glass substrate and heating them to high temperatures, the black perovskite state is achieved, enabling efficient sunlight absorption and electricity generation.
A new class of lead-free double perovskites has been developed, showcasing broad emission across the entire visible spectrum and achieving a record-high photoluminescence quantum efficiency (PLQE) of 70.3%. The material's stability and potential for efficient warm white-light emission make it promising for LED applications.
The researchers have developed a method to fabricate high-quality perovskite light emitters and consequently high-efficiency perovskite LEDs. By introducing a metal oxide, ZnO, they achieve precise control over the crystallization process, leading to near-infrared LEDs with a quantum efficiency of 19.6%.
Researchers discovered 2D perovskite materials with metal-like conductive edges and insulating cores, improving optoelectronic performance. The findings boost the potential of these materials for innovative solar cells and nanoelectronics.
Researchers at KAUST have developed a synthetic approach to generate homogeneous and defect-free crystals that could fast-track the commercialization of perovskite solar cells. The new single-crystal films exhibit lower defect density and higher charge-carrier diffusion lengths, leading to high-quality solar cells with a maximum power-...
Researchers developed colorful perovskite solar cells by depositing a uniform perovskite thin layer into arrayed nanobowls acting as a structured electron transport layer. The cells exhibited high-efficiency photovoltaic performance with up to 16.94% efficiency, overcoming previous color limitations.
Researchers at University of Surrey have developed a tin-based perovskite solar cell with 50% less lead, improving efficiency and reducing toxicity. The technology allows for affordable, flexible, and thin solar panels using low-cost materials.
Research into phosphorene nanosheets has improved the potential of perovskite solar cells by increasing their electricity production efficiency by 2-3%. This breakthrough is significant as it could lead to more efficient and potentially cheaper solar cells, paving the way for a more sustainable future.
Researchers successfully simulated real-world conditions to assess perovskite solar cell performance. The study found that temperature and irradiance variations have a minimal impact on efficiency, with slight decreases during the day but recoveries at night.
Researchers discovered that adding cesium and rubidium to the synthesis process makes the resulting solar cell more chemically homogeneous and facilitates its formation. This understanding will illuminate future work in developing more efficient halide perovskite solar cells.
Researchers at UCI unveil a new process for producing oxide perovskite crystals in exquisitely flexible, free-standing layers. The discovery creates a new class of two-dimensional materials with remarkable electronic properties, including high-temperature superconductivity.
Researchers at the University of Toronto have discovered a way to combine perovskite crystals and quantum dots to create a stable hybrid material that can increase the efficiency of solar cells. The resulting material remains stable under ambient conditions for six months, significantly longer than similar materials without stabilization.
Researchers developed a computational approach to design new hybrid halide semiconductors, discovering 13 new material candidates for solar cells and 23 for LEDs. The study used large-scale quantum mechanics calculations to identify novel materials with excellent optoelectronic properties.
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.
Researchers discovered that adding fluoride to perovskite leaves a protective layer, increasing its stability and solar cells' efficiency. The study achieved an efficiency of 21.3%, exceeding previous records by up to 24%.
Researchers developed stable inorganic perovskite semiconductors at moderate temperatures, enabling integration into thin-film solar cells. The optimized CsPbI3 layers showed an initial efficiency of over 12% and stable performance for over 1200 hours.
Scientists have discovered that caffeine can improve the performance and thermal stability of perovskite solar cells, increasing their efficiency from 17% to over 20%. The unique molecular structure of caffeine allows it to interact with perovskite precursors, giving this technology an edge on the market.
Researchers improved mixed tin-lead perovskite solar cells using guanidiinium thocyanate, enhancing carrier lifetimes and optoelectronic properties. This led to all-perovskite tandem solar cells achieving efficiencies of up to 25% with over 88% efficiency maintained after 100 hours of continuous operation.
A collaboration of researchers from ICIQ and ICMAB-CSIC investigated the impact of changing Hole Transport Materials in perovskite solar cells. They found that the surfaces and interfaces created in the solar cell stack have a crucial role in functional device performances.
Researchers have made significant strides in improving the stability of perovskite solar cells to match their high efficiency. Surface terminal groups and alternative electrodes are promising strategies for enhancing long-term stability and reducing degradation mechanisms.
Researchers from EPFL have solved the puzzle of negative capacitance in perovskite solar cells by identifying a slow modification of current passing through contact, regulated by mobile ionic charge. This discovery sheds light on interaction between photovoltaic effect and ionic conductivity.
Scientists have created high-performance perovskite light-emitting diodes by rational molecular passivation, achieving a record-high 21.6% external quantum efficiency. The discovery overcomes defects in perovskites, allowing for efficient emission of near-infrared light.
Researchers at Waseda University have finally cracked the code on magnetism-driven negative thermal expansion (NTE), a phenomenon that can make materials less heat-sensitive. The study reveals that antiferromagnets with competing direct and indirect exchange paths are potential candidates for exhibiting NTE.
Researchers found that perovskite solar cells are stable up to 300 Gy of γ-radiation but suffer a rapid drop in efficiency with further increases in dose. The study aims to find more stable materials, which could make perovskite solar cells suitable for use in space
University of Groningen scientists have successfully produced high-quality solar cells using a novel 'doctor-blade' technique. The technique enables the production of large-scale, stable and efficient perovskite solar cells with improved photoluminescence and stability.
Researchers at North Carolina State University have developed a microfluidic system that can synthesize perovskite quantum dots across the entire spectrum of visible light. The system drastically reduces manufacturing costs and allows for real-time process monitoring to ensure quality control, enabling mass production of high-quality QDs.
Researchers have created a new method to synthesize miniature light sources using optically active halide perovskites. The process produces millions of nanolasers in a few minutes and offers good control over synthesis, making it suitable for industrial adaptation.
Researchers tested large-area perovskite solar cells in near space at an altitude of 35 km, demonstrating their ability to retain power conversion efficiency despite extreme conditions. The study found that a device based on FA0.81MA0.10Cs0.04PbI2.55Br0.40 retained 95.19% of its initial efficiency.
Researchers at Rutgers University have developed a new way to control the light emitted by hybrid crystal semiconductors, which could lead to more efficient solar cells and other electronic devices. By adjusting voltage applied to an electrode, they can increase the intensity of light emitted up to 100 times.
A team of researchers from Kanazawa University has made a breakthrough in improving the efficiency of metal halide perovskite-type solar cells by layering different mineral forms of titanium oxide. The new approach, which combines anatase and brookite layers, enhances electron transport and reduces recombination, leading to increased s...
A team of engineers found that certain defects in lead-halide perovskite semiconductors can improve their performance, increasing efficiency and stability. The discoveries could pave the way for the development of more efficient and environmentally friendly solar cells and LEDs.
Researchers at CityU developed an efficient fabrication method to create smooth perovskite films with enhanced performance and stability. This led to the production of highly efficient and stable green LEDs with a record operational lifetime.
A team of Florida State University physicists has discovered a way to stabilize the color of light emitted from halide perovskites, a promising class of materials for optoelectronic technologies. The research, published in Nature Communications, uses a unique nanostructure to turn unstable materials into stable ones.
Perovskite-based solar cells have shown promise in recent years due to their simplicity, flexibility, and energy efficiency approaching those of traditional silicon-based cells. Researchers at Georgia Tech, UC San Diego, and MIT have reported new findings that could lead to devices with improved performance and longer lifetimes.
Researchers have discovered a 'sweet spot' where adding certain additives enhances perovskite solar cell performance, but beyond that point, further additions degrade it. The findings provide clues for improving the material's efficiency and longevity, which currently lags behind conventional silicon cells.