Articles tagged with Perovskites
Perovskite nanoparticles are capable of emitting different colors depending on the internal halogen element. Researchers at UNIST developed a simple method to replace certain elements via solution process, allowing for the creation of red, blue, and green LEDs with high luminous efficiency.
Swansea University researchers have developed a perovskite solar module six times bigger than the previous largest, with efficiencies of up to 6.3% PCE and 11% PCE at low light levels. The technology uses simple and low-cost printing techniques, paving the way for industrial production.
Scientists at OIST have developed a method to fabricate low-cost high-efficiency perovskite solar cells, boasting an efficiency comparable to crystalline silicon cells. The technique uses a gas-solid reaction-based method to produce uniform panels with improved stability and production costs.
Researchers at Penn State discover unique properties of halide perovskites that enable efficient conversion of sunlight into electricity, guiding the development of next-generation solar cells. The study's findings provide insights into how to improve the performance and stability of these materials.
FAU researchers find that incoming light causes electrons to rotate, influencing current flow and improving the efficiency of perovskite crystals. Heating perovskites to room temperature reveals a link between electron spin and current flow.
Scientists at ITMO University have developed a new material using silicon nanoparticles to improve perovskite solar cells' efficiency. The nanoparticles trap light of various wavelengths near the cell's active layer, maintaining stability and increasing absorption. This breakthrough could lead to more efficient and stable solar cells.
Scientists have identified key defects in perovskite solar cells that limit their efficiency. The most harmful defects are found at the interfaces between the perovskite layer and charge transport layers, leading to recombination of charge carriers and energy losses.
Scientists at the University of Washington have developed a method to improve the performance of perovskite solar cells by surface passivation, which significantly boosts their efficiency. This breakthrough could lead to thinner and more flexible solar cells with higher power conversion efficiency.
Scientists at Lomonosov MSU developed a new method to produce high-quality perovskite films from gamma-butyrolactone, surpassing previous solvents and achieving an efficiency of 23.2% for thin-film solar cells.
Researchers at Tokyo Institute of Technology have developed a ruthenium-based perovskite catalyst that exhibits high performance even at low temperatures and is recyclable. The new catalyst overcomes classic limitations, including the need for additives and high reaction temperatures.
Researchers have developed a family of metal-free ferroelectric perovskites offering non-toxic and mechanically flexible properties for future soft robotic and biomedical devices. One organic compound exhibits ferroelectric traits similar to inorganic BTO, enabling environmentally friendly applications.
The University of Surrey's Advanced Technology Institute has created a new technique to reduce energy loss in perovskite solar cells, increasing voltage and efficiency. The Solution-Process Secondary growth (SSG) method achieved a PCE of 20.9%, the highest certified for inverted cells.
Scientists have developed a new method to grow organic-inorganic hybrid perovskite nanocrystals on metal sulfide nanosheets using a wet-chemical process, enabling scalable production of solution-processible heterostructures. This approach improves light absorption and energy transfer in optoelectronic devices.
A new scalable means of applying an electron transport layer in perovskite cells has been developed, resulting in a 30 percent efficiency gain. This breakthrough could make perovskite solar cells more commercially viable and pave the way for record-breaking p-i-n perovskite solar cells.
Researchers have discovered a new class of materials that can harness sunlight to split water into hydrogen and oxygen. Cs2BiAgCl6 and Cs2BiAgBr6 are promising photocatalytic materials due to their ability to absorb visible light and generate sufficient energy to split water.
Recent improvements in perovskite alternatives are moving tandem devices closer to market with efficiencies similar to commercial silicon modules. Researchers have achieved lab device efficiencies up to 26.4 percent by tinkering with material composition and encapsulating cells in protective coatings.
Research teams have developed an economically competitive solution to create solar cells that combine the benefits of silicon and perovskite materials. The new technology achieves a record efficiency of 25.2% while maintaining compatibility with existing industrial expertise.
Researchers at Rice University and Los Alamos National Laboratory developed a scale to measure exciton binding energy in perovskite quantum wells, enabling the design of efficient optoelectronic devices. This breakthrough could impact solar cells, LEDs, and other technologies.
A KAIST research team has developed a novel perovskite material, Cs2Au2I6, which exhibits high efficiency and stability compared to conventional organic-inorganic hybrid perovskites. The new material is expected to overcome the limitations of previous perovskite materials, including toxicity issues.
Researchers have developed a facile wet-chemical method to directly grow organic-inorganic hybrid perovskite nanocrystals on dispersible MoS2 nanosheets. This enables the scalable production of solution-processible heterostructures, which exhibit improved light absorption and energy transfer due to their epitaxial interface. The use of...
Scientists from Lobachevsky University study Aurivillius phases for potential non-volatile memory chips. They determine operating temperature ranges and structural features, finding that linear dimensions increase more evenly throughout the material during transition to paraelectric state.
Scientists at OIST have developed stable and efficient perovskite solar cells that could revolutionize the solar industry. The new material is made of inorganic components, making it more heat-stable than previous versions.
Researchers used neutron scattering to study the microscopic structure and optoelectronic properties of hybrid perovskite materials. The study found that hydrogen bonding plays a key role in the material's performance, enabling manufacturers to design solar cells with increased efficiency.
Researchers at NREL have made progress in scaling up perovskite solar cell production, but issues persist, including the non-uniform coating of chemicals and inactive zones between cells. To address these challenges, scientists are exploring various scalable deposition methods.
Researchers relax perovskite crystal to reduce strain and improve power conversion efficiency, achieving 20.5% efficiency with negligible degradation over 1,500 hours of operation.
A joint research program aims to create a stable network of researchers working on perovskite semiconductors. The material has shown potential as a highly efficient and processable solar cell technology, with the goal of improving its defect tolerance.
Researchers at Linköping University have developed high-quality lead-free double perovskite films with long electron-hole diffusion length, a necessary property for efficient solar cells. The power conversion efficiency of these solar cells is still low, but the team has taken a major step towards increasing efficiency in the near future.
Researchers have designed molecular perovskite-based energetic materials with improved explosive performances, including high detonation heat, velocity, and pressure. The new materials also exhibit increased thermal stability and low impact sensitivity, making them suitable for military devices and civil industry.
Researchers at the University of Cambridge have discovered a simple potassium solution that can boost the efficiency of next-generation solar cells by up to 21.5%. The addition of potassium iodide 'heals' defects and immobilises ion movement, making the material more stable and efficient at converting sunlight into electricity.
Researchers have discovered a diamond containing the fourth most abundant mineral in Earth, calcuim silicate perovskite, at the surface. This finding suggests that oceanic crust is recycled into the lower mantle, with potential implications for our understanding of Earth's core.
A new approach to making highly-efficient solar cells has been developed using a novel perovskite material. The researchers achieved a power conversion efficiency of 19.10% and demonstrated air-stability in their device, which could lead to more efficient solar energy applications.
A research group from ITMO University combined a nanoantenna with a light source in a single nanoparticle, generating, enhancing and routing emission. The scientists discovered that the emission can be enhanced if its spectra match with Mie-resonant mode, making them efficient light sources at room temperature.
Researchers at Brown University have developed a new titanium-based material for making lead-free, inorganic perovskite solar cells. The material has favorable properties for solar applications and can be tuned to improve efficiency.
Researchers developed a new molecule, EH44, to replace the unstable spiro-OMeTAD layer in perovskite solar cells. The new design resolves chemical makeup issues and maintains steady efficiency, bringing emerging technology closer to commercial deployment.
Researchers at Aalto University found major deficiencies in ageing tests of perovskite and dye-sensitized solar cells. Most tests lacked common standards, were performed in dark conditions, or reported insufficient data.
Researchers at EPFL have developed a systematic understanding of sequential deposition reaction for metal halide perovskite formation. The study used X-ray diffraction analysis, scanning electron microscopy, and cross-sectional photo-luminescence mapping to investigate the crystallization of lead iodide and perovskite film formation.
Researchers at Berkeley Lab have developed a thermochromic material that works as both transparent and non-transparent, producing electricity when darkened. The material's reversible phase transition enables it to switch between these states without degrading its electronic properties.
Researchers have discovered that mesoporous perovskite solar cells exhibit better output stability than their planar counterparts due to the large surface area of the interface. The mesoporous structure dilutes defects, leading to a more stable power output and increased resilience to defect accumulation.
KAIST researchers have developed a new technique to improve the chemical stability of electrode materials in solid oxide fuel cells. By employing a small amount of metals, they can extend the lifespan of these energy technology devices. This innovation has the potential to improve the long-term performance and durability of fuel cells.
Researchers have discovered a new material that slows down the decay of hot electrons in solar cells, allowing for more energy to be harvested. This could lead to a significant increase in solar cell efficiency, from 33% to 66%, and make a major contribution to providing clean and sustainable energy.
Researchers developed a new gas-solid reaction method to fabricate high-quality perovskite films, achieving faster response times and improved stability in photodetectors. The non-solvent approach provides full coverage of the film and eliminates damage from organic solvents.
Researchers at Helmholtz-Zentrum Berlin discover why perovskite solar cells function despite numerous holes. The thin layer built up in the film prevents short circuits by recombination barrier and electron transport layer separation.
Researchers at Duke University have developed a method to create hybrid thin-film materials that can absorb and emit light efficiently. The technique, called Resonant Infrared Matrix-Assisted Pulsed Laser Evaporation, allows for the creation of delicate organic-inorganic crystals with improved scalability and durability.
Researchers propose a standardized measurement method for perovskite solar cell stability, addressing the lack of comparable data across laboratories and companies. The study investigates environmental factors affecting perovskite degradation, revealing specific behaviors that distort experimental results.
Distinguished Professor Sang Il Seok at UNIST received the 2017 Korea Scientists Award for his outstanding contributions to energy sector through manufacturing high-efficient halide perovskite solar cells. His research has been recognized worldwide and cited over 5,000 times in prestigious scientific journals.
Scientists at EPFL Valais Wallis discovered that guanidinium can improve perovskite stability, delivering an average power conversion efficiency of 19.2% and stabilizing performance for 1000 hours under continuous light illumination. This breakthrough could lead to the development of more efficient and stable perovskite solar cells.
Researchers at The University of Tokyo's Institute of Industrial Science have developed a semi-transparent solar cell that absorbs red and blue light while letting green through. The new material, based on perovskite, is able to retain an impressive power conversion efficiency of around 10% despite being made much thinner.
A team of researchers has demonstrated a simple approach for coupling solution-synthesized cesium lead tribromide (CsPbBr3) perovskite nanocrystals to silicon nitride photonic cavities, enhancing room temperature light emission by an order of magnitude.
A team of researchers has discovered that ions in hybrid perovskite crystals migrate and create regions with reduced efficiency, degrading the material's performance. Limiting this ion migration could lead to improved high-efficiency solar cells with low costs.
Scientists have successfully created the first continuous-wave lasing in an organic-inorganic lead halide perovskite semiconductor, which could be a crucial step towards developing electrically driven devices. By adjusting the material's temperature, they avoided a phenomenon known as lasing death and achieved over an hour of lasing.
Researchers have developed a stacked color sensor using perovskites, which improves colour recognition and light sensitivity. This allows for more accurate image capture and enables the creation of smaller pixel sizes, potentially leading to higher spatial resolution in various analysis technologies.
Researchers have developed a method to produce high-quality perovskite photovoltaics using mechanochemistry, resulting in improved efficiency and reduced structural defects. The production process involves grinding powders to create homogeneous perovskites with fewer defects, which improves the cell's performance.
University of Utah researchers create a new component for ultra-high-speed communications and computing using perovskite, a mineral discovered in Russia. The technology uses the terahertz spectrum to transmit data a thousand times faster than current systems.
Inorganic-organic halide perovskites have distinctive advantages for high efficiency solar cells, with recent breakthroughs in developing efficient hole transport material free PSCs. Significant ion transport has been found to redistribute doping and defects, affecting photoelectric behavior and stability.
Researchers at Osaka University have developed a new method to model the structure of perovskite oxide interfaces using a Bayesian probability-based computer program. This approach provides fast and accurate results, allowing for easier analysis of complex structural data.
Researchers at UNIST have developed highly stable perovskite solar cells using fluorine-functionalized graphene nano-platelets, overcoming the material's notorious instability. This breakthrough could lead to next-generation solar cells with high efficiencies and low costs.
Scientists discovered that treating a complex oxide crystal with heat or chemicals creates catalysts with dissimilar behaviors, leading to distinct products. The findings could provide a route to selective conversion of biomass into value-added chemicals.
A team of researchers at KAUST discovered the origin of strong photoluminescence in Cs4PbBr6, a perovskite material. Heating the crystal to 180°C irreversibly destroys its photoluminescence, but creates CsPbBr3 nanocrystals that act as traps for excitons, leading to efficient re-emission of light.
Researchers develop a quantum perovskite material that exhibits adaptive response to repeated proton insertion and removal, resembling brain's desensitization. This property enables effective programming of the material like a computer.
Researchers from MSU found that changing the ratio of components in light-absorbing perovskite layers influences film structure and solar cell efficiency. By studying intermediate compounds formed during crystallization, they discovered a key factor affecting perovskite crystal shape and solar cell performance.