Articles tagged with Photovoltaics
A team of researchers from Aarhus University and international experts found that solar photovoltaic technology has been drastically underestimated in the IPCC's climate-neutral energy production scenarios. The study suggests a more significant role for solar cells in achieving a fossil-free future.
The study reveals that fundamental processes during perovskite film formation strongly impact reproducibility, and optimizing the antisolvent step can significantly widen the processibility window of perovskite photovoltaic devices.
Researchers use time-resolved serial femtosecond crystallography to capture dynamic changes in chloride ion-pumping rhodopsin, an atomic 'pump' driven by sunlight. The study reveals the mechanisms of energy conversion and has implications for designing light-sensitive molecular pumps.
Researchers will explore decision-making processes for adopting solar energy systems and electric vehicles, as well as improve the efficiency and manufacturing process for solar panels. The studies aim to identify non-technological barriers to clean-energy adoption and evaluate the effectiveness of low-cost interventions and incentives.
Researchers have developed a new dye called MS5 that significantly enhances the efficiency of dye-sensitized solar cells (DSSCs), which are already being manufactured on a large scale. The new dye produces an open-circuit voltage of 1.24 Volts and achieves a power conversion efficiency of 13.5%, surpassing previous records in the field.
A new fabrication method for stable perovskite solar cells has been developed, enabling easy production, low cost and high performance. The sulfolane-additive process extends the processing window, forming highly crystalline layers over a large area with extended operational lifetimes.
Researchers suggest covering California's public water delivery canals with solar panels to reduce evaporation and increase renewable energy production. The study found that cable-supported installations showed a 20-50% higher net present value, indicating greater financial return on investment.
Researchers found no significant difference in plant growth or health when grown under different light filters, making see-through solar panels a feasible option for greenhouses. This technology could enable energy-neutral farming and reduce greenhouse emissions.
Researchers used conductive atomic force microscopy to detect tiny channels for dark currents in solar cell surfaces, revealing the loss mechanism at the interface of silicon heterojunction solar cells. The study showed that these channels are caused by disorder in the a-Si:H layer and lead to trap-assisted quantum mechanical tunnelling.
Researchers at POSTECH have developed an on-demand drug delivery system that utilizes organic photovoltaic cells and upconversion nanoparticles to convert near-infrared light into visible light, allowing for controlled drug release in medical devices.
The research team used laser spectroscopy to define the physics of trapped carriers in organic metal halide perovskite films. By analyzing the photocurrent, they identified defects that reduce efficiency, ultimately leading to increased performance and lower costs for solar cells and other devices.
Scientists from KIT's Institute of Microstructure Technology and Light Technology Institute have developed a new model to calculate photoluminescence quantum efficiency of perovskite films. The results reveal that the actual efficiency is significantly lower than previously estimated, with an estimated 78% compared to predicted 90%. Th...
Researchers at Tufts University created light-activated composite devices that execute precise movements and form complex shapes without wires or energy. The technology enables self-aligning solar cells, soft robots and other smart systems responsive to illumination.
Researchers at the University of Surrey have developed a new analysis of 2D perovskites, which could improve the stability of next-generation solar cells and LEDs. By combining lead with tin, they were able to reduce toxic lead quantities and tune key properties, leading to enhanced performance in photovoltaics and light-emitting diodes.
Researchers at KAUST have developed a new solar cell material combination that surpasses the performance of traditional silicon-based panels. By optimizing perovskite materials and device architecture, they achieved efficiencies beyond commercial silicon solar cells.
Scientists at Linköping University discover where unexplained energy losses occur during singlet fission, a phenomenon that can increase solar cell efficiency. The breakthrough could lead to higher efficiency rates, from 33% to over 40%, making solar cells more sustainable.
Researchers from Tohoku University created a tin monosulfide solar cell with attractive performance levels, overcoming manufacturing complexities. The p-n homojunction design achieved comparable open circuit voltage as previously reported heterojunction devices.
Lowering solar panel operating temperature by a few degrees can significantly increase electricity generation over lifetime, KAUST researchers show. They developed a metric to compare LCOE gains from reducing module temperature vs. improving efficiency, finding that cooling can achieve similar gains as PCE improvements.
The study provides important findings for the solar industry by analyzing solar cell processes at an ultra-fast scale. The researchers used time-resolved X-ray photoemission spectroscopy to identify a previously unobserved channel for charge separation, revealing new insights into quantum efficiency and optimization possibilities.
Osaka University researchers employed machine learning to design new polymers for photovoltaic devices, virtually screening over 200,000 candidate materials. They found promising properties consistent with predictions, leading to potential breakthroughs in functional material discovery.
A novel type of organic light-harvesting supramolecule based on DNA is synthesized to improve the quantum efficiency of electron-hole pair production. The supramolecule's 3D structure persists in both liquid and solid phases, outperforming traditional electron donors and acceptors.
The Helmholtz-Zentrum Berlin team has developed a scalable method for coating larger surfaces using slot-die coating. They found that the optimal amount of dimethyl sulfoxide (DMSO) in the material ink is critical for crystal growth, with too little or too much reducing performance.
The University of Toledo will develop flexible solar cell sheets to harness solar energy in space and transmit power wirelessly to Earth. The five-year project aims to create large, efficient solar arrays that could generate up to 800 megawatts of electrical power.
Researchers have designed windows with a conjugated polymer layer that absorbs light and guides it to solar cells, generating electricity. The panels are more efficient at converting ambient LED light than direct sunlight.
An international team of researchers has developed foldable solar cells using single-walled carbon nanotube films, exceeding expectations with exceptional resistance to bending and high power conversion efficiency. The breakthrough paves the way for next-generation solar panels that can be integrated into everyday appliances.
Researchers found that grid-tied solar photovoltaic (PV) owners are undercompensated in most of the U.S., as the value of solar eclipses net metering and two-tiered rates. This study provides a generalized model to evaluate the economics of grid-tied PV systems, showing substantial future regulatory reform is needed.
Researchers have developed a framework to predict the performance of next-generation hybrid photovoltaic-thermal (PVT) solar collectors. The study reveals that the relative value of thermal energy to electricity significantly influences efficiency limits, optimal PV cell material, and spectral-splitting filter design.
Researchers at UCLA have discovered a new molecular component in perovskites that can enhance their electronic performance. The study, published in Science, shows that properly designed organic molecules can contribute to the materials' electronic properties, leading to improved efficiency in solar cells and LEDs.
Researchers created a new solar cell design using 3D nanocomposites, increasing efficiency by a factor of five. The unique architecture helps overcome material limitations, enabling easier manufacturing and improved durability.
Machine-learning algorithms are trained on large datasets to predict the performance of organic solar cells, identifying key parameters such as electronic gap and charge transport balance. This study demonstrates a new approach to predicting material efficiency, paving the way for further analytical models and more complex system under...
Researchers from Universitat Rovira i Virgili and Institute of Materials Science of Barcelona have combined experimental data with algorithms to enable an unprecedented predicting capability of the performance of organic solar cells. The study uses a new experimental method to generate large datasets, which are then used to train machi...
Researchers created perovskite solar modules with improved stability and efficiency using a new fabrication technique that reduced defects. The modules showed high efficiencies for over 1000 hours, overcoming obstacles in scalability.
Researchers at RUDN University have synthesized and described new dibenzophenazine-based discotic liquid crystals with promising properties for industrial electronics. The crystals can withstand temperatures up to 330? and show potential in organic optoelectronic devices and solar panels.
Researchers have found a novel solution to stabilize the unstable black phase of a lead halide perovskite, which has potential for being cheaper and easier to manufacture than current silicon solar cells. The stable material remains resistant to deterioration and efficient at room temperature.
Scientists have developed a novel, doped-free hole-transporting layer for perovskite solar cells, achieving 21% power conversion efficiency and improved durability in humid air. The new material outperforms reference materials and protects the perovskite organic cell from degradation.
Physicists at Washington University discovered a method to add electrical charge to graphene devices by layering alpha-RuCl3 flakes. This process allows for 'permanent' charge transfers without external electric fields, enabling control over the flow of electrical current.
Researchers found that adding capsaicin to perovskite solar cells increases electron density and reduces nonradiative recombination, leading to more efficient and stable devices. The addition also promotes charge transport and suppresses heat losses.
Researchers at NC State University developed a framework to predict organic solar cell stability using elastic modulus and glass transition temperature. The most stable cells contain highly rigid materials with low miscibility, resulting in reduced diffusion and increased stability.
A new study from Incheon National University reveals a fully transparent solar cell that can absorb UV light while transmitting most visible light. The cell's performance is encouraging, with a power conversion efficiency of 2.1% and high responsiveness in low light conditions.
Organic solar cells have improved efficiency by up to 18.3% with the use of diquat, a molecular dopant created through electrochemical reduction. This breakthrough increases optical absorption and charge lifetime, paving the way for more efficient energy conversion.
A new study by Oregon State University researchers finds that co-developing land for solar photovoltaic power and agriculture could reduce US carbon emissions by 330,000 tons annually and create over 100,000 jobs. The proposed agrivoltaic systems would produce 20% of US electricity generation while minimizing crop yield impact.
Researchers from Incheon National University propose a novel solution in the form of antiperovskite oxides, which exhibit spontaneous electric polarization and ideal band gaps for efficient sunlight absorption. This discovery opens up endless possibilities for diverse applications, including wearable devices like smartwatches.
Researchers at HPSTAR have discovered a universal relationship between regulating off-centering distortion and maximizing photoluminescence in halide perovskites. By applying high pressure, they achieved optimal PL performance, ten-fold enhancement, and new paths to high-performance optoelectronic materials.
Scientists in Australia develop a process to calculate perfect quantum dot size and density for peak solar performance, enabling photochemical upconversion. The research uses lead sulfide quantum dots and shows promise for improving solar panel efficiency without compatibility issues with silicon technology.
A new study highlights the importance of coordinated policy reforms in supporting renewable electricity across EU member states. Without coordination, investors may shift their focus to subsidized technologies or countries with available subsidies, increasing the overall costs of expanding renewable energy generation in Europe. Strengt...
Researchers at Helmholtz-Zentrum Berlin have developed a perovskite/silicon tandem solar cell achieving a record 29.15% efficiency, surpassing previous records. The new value has been certified and is at the top of the entire Emerging PV category in the NREL chart.
A RIT professor is leading a research project to develop low-cost, high-efficiency solar cells using a reusable substrate process. The goal is to reduce the cost of these efficient solar cells, which can power devices like smartphones, drones, and cars.
Researchers at Hiroshima University created a blended solar cell by adding a compound that absorbs long wavelengths of light, increasing the device's efficiency by 1.5 times. The team discovered that distributing the material is key to further improved power generation efficiency.
Researchers at EPFL have developed a perovskite material that can detect gamma rays with high efficiency, meeting the requirements for simple, reliable, and cheap detectors. The material, made of methylammonium lead tribromide crystals, shows high clarity and can be grown from abundant and low-cost raw materials.
A new system developed by Arizona State University researchers measures solar panel performance in outdoor settings, enabling real-time measurements and detailed diagnostics. The goal is to increase efficiency and lifespans of photovoltaic systems, supporting the development of universally effective solar cells and systems.
The study uncovered essential properties of ions in metal halide perovskites, which have a negative effect on the efficiency and stability of perovskite solar cells. The researchers found that all ionic defects meet the Meyer-Neldel rule, revealing fundamental information about ion hopping processes in perovskites.
TalTech's new generation monograin layer solar cells have been developed with a focus on reducing the ecological footprint and increasing efficiency. The Cu2CdGe(SxSe1?x)4 semiconductor material shows promising results, with a power conversion efficiency of 6.4%.
Researchers develop rapid-spray plasma processing technology to produce stable and efficient perovskite solar cells at record-breaking speeds. The new method enables mass production of perovskite modules with high power conversion efficiency and low costs, potentially transforming the solar industry.
Researchers at POSTECH developed organic spacer molecular additive to improve perovskite solar cells' photoelectric efficiency and stability. The new material reduces internal defects and increases moisture resistance, achieving 21.3% efficiency and maintaining over 80% of initial performance under humid conditions.
Scientists have created a set of design guidelines to enhance the efficiency of molecular materials in solar cells. By understanding how particles travel through devices, researchers discovered that maximizing exciton diffusion length can improve organic solar cell performance.
Researchers developed a stable oxide scaffold for perovskite solar cells, allowing for easy removal and replacement of the material while maintaining performance. The new design achieved around 11.08% power conversion efficiency upon perovskite replacement.
Researchers have observed a one-way street for electrons in a nanomaterial, where conical intersections channel energy in a certain direction with high probability. This phenomenon has implications for the development of more efficient organic solar cell devices and potentially artificial eyes from nanostructures.
The team used fluorescent pH-sensor foils to visualize changes in local pH during electrolysis, observing a clockwise motion of the electrolyte and fluctuations in density due to electrochemical reactions. They developed a multiphysics model to simulate natural convection in electrochemical cells with various electrolytes.
Researchers from Imperial College London and their colleagues have discovered new green materials that can convert indoor light into energy, potentially powering smart devices without toxic chemicals. The materials, inspired by perovskites, show promise for commercial applications and could enable battery-free wearables and IoT devices.
A new study from Incheon National University develops an eco-friendly buffer for solar panels, increasing efficiency and sustainability. The ZTO buffer uses naturally abundant materials, reducing toxicity and costs.