Articles tagged with Perovskites
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 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.
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.
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.
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.
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 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.
Researchers have developed a new method to deposit CuSCN layers on perovskite films, resulting in stabilized power-conversion efficiencies exceeding 20%. The introduction of a thin spacer layer of reduced graphene oxide allows the cells to achieve excellent operational stability, retaining over 95% of their initial efficiency.
Scientists at KAUST and Oxford University have created a method to produce centimeter-scale, highly pure perovskite crystals by exploiting surface tension. This technique enables the growth of large-area perovskites without being limited to specific metal cations.
Perovskite solar cells could generate electricity more efficiently by harnessing the kinetic energy of electrons moving at high speeds. The study found that electrons retain their highest levels of energy for up to 10 quadrillionths of a second, limiting the time frame for extraction.
Glycol ethers added to thin film manufacturing boost perovskite crystal structure and efficiency, increasing solar cell performance.
Scientists have made a breakthrough in producing ultra-pure green light for high-resolution displays, exceeding 97-99% of the Rec.2020 standard. The new technology uses simple room-temperature processes and inexpensive materials, paving the way for low-cost industrial production.
Defects in perovskites can be permanently healed with light and humidity, accelerating the development of cheap and high-performance solar cells. The process involves exposure to light, oxygen, and controlled humidity levels, which create a protective shell that locks in improvements.
Stanford University scientists have created a compound solar cell with perovskite microcells encapsulated in hexagonal scaffolds, inspired by the insect compound eye. The design increases fracture resistance without compromising efficiency, and the cells withstand extreme temperatures and humidity.
Researchers have successfully grown single crystalline films of perovskite CH3NH3PbI3 on electron-collecting substrates, exhibiting excellent photovoltaic properties. The resulting devices achieve high efficiency rates, closing the gap with traditional silicon-based solar cells and offering a promising solution for renewable energy.
Scientists at King Abdullah University of Science & Technology (KAUST) have discovered a crystalline material that changes shape in response to light, showcasing its potential applications in novel optoelectronic devices
Researchers at OIST have improved the stability of perovskite solar cells by inserting a thin polymer layer, extending their lifespan four-fold. They have also developed a new method to manufacture perovskite LEDs using chemical vapor deposition, which could lead to lower-cost and more efficient lighting solutions.
Scientists at KAUST have discovered that two-dimensional layers of perovskite material can achieve higher purity levels than their three-dimensional counterparts. This breakthrough could lead to more efficient and cost-effective solar cells.
Researchers used a powerful electron camera to study the motion of atoms in perovskite materials, discovering that light causes unusual deformations that could enhance their efficiency. These findings provide clues for making better solar cells.
Researchers at UNIST have achieved a new world record efficiency performance of 22.1% in small cells and 19.7 percent in 1-square-centimeter cells using perovskite solar cells. The breakthrough is made possible by careful control of growth conditions to fix defects that reduce photoelectric efficiency.
A team of researchers from the University of Cambridge and the US has demonstrated a non-toxic alternative to lead for use in next-generation solar cells, using bismuth oxyiodide. The material shows comparable performance to current silicon-based solar cells, with efficiencies up to 22%.
Researchers developed a meniscus-assisted solution printing (MASP) technique to fabricate high-efficiency perovskite solar cells with large crystals. The process boosts power conversion efficiencies by controlling crystal size and orientation, resulting in stable and efficient solar cells.
Researchers at Berkeley Lab have discovered a new type of semiconductor that can emit multiple bright colors from a single nanowire, challenging traditional quantum dot displays. The 'soft' semiconductors use ionic bonds instead of covalent bonds, making them easier to reconfigure and produce.
Scientists have developed an ultra-stable perovskite solar cell with a constant efficiency of 11.2% for more than 10,000 hours, resolving stability issues and paving the way for commercialization. The 2D/3D hybrid perovskite design efficiently absorbs light across the visible spectrum and transports electrical charges.
Researchers at University of Utah have discovered that organic-inorganic hybrid perovskites possess contradictory properties necessary to make spintronic devices work, enabling exponentially more data processing and overcoming size limitations in traditional electronics.
Researchers have found a new compound that can be used to create highly efficient perovskite solar cells, with efficiency rates of over 22% compared to traditional silicon-based cells. The discovery was made using a spin coating technique and has the potential to revolutionize the field of photovoltaics.
Researchers developed a new perovskite material that overcomes water sensitivity, creating stable and efficient solar cells with a ten percent efficiency rate. The material's ability to self-organize in an edge-standing structure increases electron circulation, improving energy conversion.
New research reveals the mechanism behind perovskite solar cell breakdown in air, which causes significant degradation and reduces their efficiency. By understanding this process at an atomic scale, scientists have proposed possible solutions to engineer defects out of the material.
Scientists have discovered a new class of materials with mixed valence states in lead perovskites, exhibiting charge ordering and high thermopower. The study reveals the key to stabilizing these unusual valence states through tuning the energy levels of Pb 6s and TM 3d orbitals.
EPFL scientists have found that light plays a crucial role in controlling the morphology of perovskite crystals, leading to improved photovoltaic performance. The study reveals that the presence of light accelerates the formation of perovskites and enhances crystal growth.
Scientists at NREL developed a new perovskite ink with a long processing window, allowing for the production of high-efficiency solar cells. The ink was tested using blade-coating and produced indistinguishable film morphology and device performance.
Researchers have developed a new method to produce inorganic-organic hybrid perovskite solar cells (PSCs) with a high efficiency of 21.2% and excellent photostability, surpassing conventional limits.
Researchers have confirmed that doping spiro-OMeTAD with LiTFSI prevents holes from getting trapped, allowing them to move freely and generate electrical current. This process was observed using electron spin resonance spectroscopy and demonstrated a two-order-of-magnitude increase in the number of electron spins.
Researchers from Aalto University have developed a nanotube film that can replace traditional materials in perovskite solar cells, improving their stability and lifetime. The new material has conductivity as high as possible and can be made transparent and thin, making it suitable for use as the front contact of the cell.
Researchers have developed layered 2D hybrid perovskites with nanometer thickness, improving optoelectronic performance for efficient devices. The discovery of layer-edge-states at the edges of perovskite layers enables uninhibited charge transport and enhances photovoltaic and light-emitting properties.
Researchers at the University of Toronto have developed a new chemical reaction that enables the growth of an electron-selective layer made of nanoparticles in solution, directly on top of the electrode. This breakthrough reduces the manufacturing temperature and improves efficiency, paving the way for low-cost, printable solar panels.
Researchers discover a mineral with the right properties to harness energy from multiple sources simultaneously. The material, KBNNO, can generate electricity from heat, pressure, and even movement, paving the way for more sustainable wearable technology.
Scientists from NREL found that surface recombination significantly affects the performance of polycrystalline perovskite solar cells. The study suggests that improving surface properties could lead to more efficient devices, with potential applications in photodetectors and light-emitting diodes.
Researchers at Princeton University have developed a technique to create ultra-fine grained films using self-assembling nanoparticles, leading to more efficient and stable perovskite-based LEDs. This advancement brings perovskite technologies closer to commercialization and could speed the adoption of lower-cost and environmentally fri...
Researchers at Case Western Reserve University have directly measured the diffusion length of perovskite solar films, showing that electrons can travel long distances without deteriorating. The findings suggest that solar cells could be made thicker without harming their efficiency, potentially leading to better solar panels.
Researchers used bright X-rays to observe the one-step solution-coating process of perovskite material, identifying a crucial intermediate solid state. This discovery highlights the importance of solvent-solute interactions in halide perovskites, which significantly impacts film formation behavior and solar cell performance.
A new study has found that iodide-based perovskites produce a gaseous form of iodine during operation, causing further degradation of the material. The researchers suggest that developing new materials with reduced iodine concentrations or reinforced structures could help address this issue.
Researchers at Eindhoven University of Technology developed a new type of solar cell using perovskite material. The addition of a thin layer of aluminum oxide improved the stability of the cell against humidity and increased its yield by 3%.
Researchers at the University of New South Wales achieved a 12.1% efficiency rating for a 16 cm2 perovskite solar cell, making it the largest single certified with the highest energy conversion efficiency. The team has also demonstrated an 18% efficiency rating on smaller cells and plans to extend durability.
EPFL scientists developed a new perovskite material with rapid and reversible magnetic properties, enabling high-density data storage systems. The material's unique photovoltaic properties allow for easy manipulation of its magnetic order via light illumination.
Researchers at Australian National University have developed a new way to fabricate high-efficiency semi-transparent perovskite solar cells, which can improve the performance of conventional silicon solar cells. The new fabrication method could increase power output by up to 25% and achieve efficiencies of up to 30%.
Scientists have developed a new design for solar cells made from perovskite, achieving an average steady-state efficiency of 18.4%. The innovative tandem solar cell combines two types of perovskite into one photovoltaic cell, absorbing nearly the entire spectrum of visible light and outperforming traditional silicon-based solar cells.
Researchers from Stanford and Oxford have created a novel perovskite solar cell design that converts sunlight into electricity with an efficiency of 20.3 percent, rivaling silicon solar cells on the market today.
Researchers at NREL discovered a method to stabilize an all-inorganic perovskite material at room temperature, increasing its stability and efficiency. The new solar cells convert sunlight into electricity with 10.77 percent efficiency, surpassing other reported all-inorganic perovskite solar cells.
Scientists have made a significant advance toward more practical, environmentally friendly solar cells using inexpensive halide perovskite materials. The new cells have a power conversion efficiency of 15 percent and contain 60% less lead than traditional cells, representing a major step towards sustainable energy solutions.
Scientists at Oxford University have developed a non-toxic solvent system that can be used to manufacture perovskite solar cells, overcoming a major barrier to their commercialization. The clean solvent quickly crystallizes perovskite films at room temperature, making it suitable for coating large solar panels.
Researchers at OIST have made significant breakthroughs in perovskite solar cells, improving efficiency, stability, and scalability. New post-annealing treatments and manufacturing methods have increased conversion efficiency to 18.4%, while discovering new decomposition products has led to the development of more stable materials.
Researchers have discovered a phenomenon where certain oxides oscillate when exposed to water vapor, generating oxygen gas and exhibiting flexibility unlike expected. The exact frequency of the oscillations can be precisely tuned, which could have practical applications in battery materials and water-splitting devices.