Articles tagged with Perovskites
Researchers develop molecular bridging strategy to improve interfacial charge transport, defect passivation, and device stability. The use of sulfonate-based molecules like 2-FAS improves substrate wettability, regulates perovskite crystallization, and passivates interfacial defects.
Researchers developed a synergistic additive strategy to improve perovskite photovoltaic production. The additive strategy enabled uniform crystallization, leading to increased efficiency and operational stability. The resulting cells exhibited high power conversion efficiency and long-term stability.
A new theoretical study explains a puzzling infrared signal in perovskite solar materials as a result of carrier-induced photonic resonance, which can mimic molecular events. Measuring dilute nanocrystal solutions may help separate the optical effect from genuine molecular dynamics.
The research team developed a next-generation perovskite semiconductor thin film with reduced defects, enabling high-performance solar cells and LEDs. The films demonstrated the highest quality reported to date, with a charge-carrier lifetime of 295 μs and a surface recombination velocity of 0.3 cm/s.
Researchers developed an instrument to study solar cells under real-world conditions of temperature, light, and humidity. This platform simulates daily exposure and allows for the evaluation of complete devices generating electricity, enabling optimization of emerging solar technologies.
Researchers developed an automated platform to track perovskite film formation in real-time and use machine learning to improve solar cell performance. The platform enabled the identification of optimal conditions for droplet behavior, leading to a power conversion efficiency of 24.4% in a lead-based perovskite solar-cell device.
Researchers have reviewed recent advances in self-assembled monolayers as hole-selective contacts in perovskite solar cells, improving efficiency and stability. Molecular engineering optimizes buried interfaces, charge extraction, and supports high-efficiency single-junction devices and scalable photovoltaic modules.
Researchers developed a high-entropy perovskite to protect iridium nanoparticles, improving the stability of catalysts used in water electrolysis. The new design allowed the catalyst to last over 3,800 hours with minimal loss in performance.
Researchers at the University of Surrey have developed a lower-toxicity way to make perovskite solar modules at scale, using safer solvents and simpler coating steps. The new approach enables continuous, high-throughput production and reduces the need for hazardous solvents and waste treatment.
Researchers at Princeton University have developed a novel combination of chemicals that reduces defects in perovskite solar cells, enabling them to retain energy from sunlight 10 times longer. This breakthrough could translate to a 1% improvement in power generation and pave the way for cheaper and more sustainable energy.
Researchers at the University of California San Diego developed a new method to grow perovskite crystals with fewer defects, leading to higher efficiency and durability in solar cells and LEDs. The temporary melting liquid, called a eutectic, helps to neutralize electronic defects and produce larger, more uniform crystals.
Researchers developed a Prussian blue-based strategy to regulate crystallization and ion migration in perovskite solar cells, achieving high power conversion efficiencies. The strategy controlled crystallization and suppressed ion migration, promoting preferential crystal growth and alleviating tensile lattice strain.
Researchers at the University of Wisconsin–Madison have designed a new tin-based perovskite with built-in protection against air and moisture, addressing one of the biggest challenges facing tin-based perovskite solar cells. The new material achieved 16.2% efficiency and remained stable during extended testing.
A new additive, 2-aminobenzothiazole, enhances the efficiency and longevity of tin perovskite solar cells by regulating crystallization, reducing trap formation, and inhibiting tin oxidation. This study shows a substantial increase in solar cell performance and improved device stability.
Researchers have developed a novel all-inorganic perovskite single crystal that bridges the gap between solution-processable materials and high-performance radiation detection. The material achieves exceptional metrics in X-ray detection, including a record-high detection sensitivity and a large resistivity.
Researchers at Kaunas University of Technology have created a more stable interface between the different layers of perovskite solar cells, improving their efficiency and operational lifetime. The new concept enables large-area modules to be coated with a uniform layer, allowing for practical application testing.
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 ...
The study isolated the effect of dielectric screening on excitonic properties in 2D perovskites. The research team found that changes in organic spacer length lead to a substantial rise in exciton binding energy.
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 develop novel approach to fabricate large-scale single-crystal heterojunction arrays with precise control over pixel size, arrangement angle, and crystal orientation. The method enables exceptional quality, self-powered photodetector arrays with remarkable metrics, and high-performance optoelectronic applications.
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 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 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 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.
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.
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.
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.
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.
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.
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.