Articles tagged with Photovoltaics
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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.
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.
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 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.
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.
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.
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.
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 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.
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.
Researchers created a new type of machine learning model to predict power-conversion efficiency of materials for next-generation organic solar cells. The approach is quick and easy to use, providing important data on chemical fragments that affect performance.
Scientists at KAUST create a perovskite ink suitable for mass production using slot-die coating, improving solar cell efficiency to up to 21.8%. The ink can also be coated onto silicon to produce tandem solar cells capturing even more of the Sun's energy.
Large-area flexible organic photodiodes have surpassed conventional silicon photodiode technology in detecting low levels of light across large areas. The devices offer advantages over silicon, particularly in biomedical imaging and biometric monitoring, with performance comparable to rigid silicon photodiodes.
Researchers at Swansea University developed a new method to detect tiny signatures of 'charge traps' in organic semiconductors, which may improve the performance of solar cells, photodetectors, and OLEDs. The study found that charge traps can generate new charges rather than annihilate them completely.
A team led by Prof. Christoph Brabec has developed a system to increase the efficiency of organic solar cells. By using luminescent acceptor molecules, they achieved an impressive 12.6% efficiency record in a recent study published in Nature Energy.
Scientists have developed transparent photovoltaic devices using thin silicon films, enabling efficient power generation. The devices utilize ultraviolet light and can generate electricity even under low-light conditions.
The new photodetector achieves ultrasensitive detection, stable operation under extreme conditions, and ultrabroad spectrum detection exceeding 10μm.
Scientists have found nanometre-sized areas of varying local density in amorphous silicon thin films. These regions, known as densely ordered domains, contain hardly any hydrogen and can contribute to the stability of the material.
Scientists have discovered that ionization energy is more crucial than electron affinity in determining the efficiency of organic solar cells. This finding allows for precise design rules to be derived, aiming to maximize solar cell efficiency and potentially leading to transparent solar cells with high efficiency.
Researchers developed feasible approaches for durable perovskite photovoltaics by addressing internal instability, chemical degradation, and environmental factors. Compositional engineering and bonding passivation are promising methods to improve device durability.
Researchers from GIST have discovered that doping polycrystalline solar cells with alkali metals improves their efficiency. The optimal dopant thickness determined the path of charge carriers, leading to a record fill factor of 63% and competitive overall performance.
Organic solar cell efficiencies are limited by electron affinity and ionization energy offsets. Researchers discovered that Förster resonance energy transfer competes with electron transfer, hindering charge separation. The team plans to design new materials with enhanced charge generation and reduced energy losses.
Scientists at KAUST create a straightforward method for depositing silicon oxide onto silicon wafers using plasma processing in carbon dioxide gas. This technique resolves the problem of 'dangling bonds' and generates stable oxide films suitable for solar cells.
Researchers at FSU investigated perovskite materials to improve their stability under real-world conditions. They found that adding cesium increases the material's stability and performance under light and elevated temperatures.
Stanford researchers developed a new ultrahigh-res OLED display technology that enables televisions, smartphones, and virtual reality devices to reach resolutions of up to 10,000 pixels per inch. The displays are also brighter and have better color accuracy than existing versions.
Scientists at NREL developed a next-generation thermochromic window that reduces energy consumption and generates electricity. The new technology enables various colors and temperature-driven color changes, increasing design flexibility and control over building aesthetics.
Scientists at the University of Córdoba studied new solar tracking strategies to maximize electric production. They proposed a tracking strategy that uses backtracking to avoid casting shadows among panels, resulting in an annual increase of 2% more energy production.
The University of Surrey has made significant advancements in perovskite tandem solar cells, achieving higher power conversion efficiencies through adjustments to thickness and the development of more effective protective layers. This progress holds promise for accelerating commercialization and promoting a shift towards green energy.
A new solar panel design using checkerboard lines can absorb up to 125% more light, leading to the creation of thinner, lighter, and more flexible panels. This breakthrough could enable a rapid expansion of photovoltaics and greatly reduce carbon footprint.
A new study shows that layering advanced materials atop traditional silicon can produce multilayered solar panels with improved efficiency. The researchers used a precisely controlled fabrication process to create the new panels, which have the potential to convert more sunlight into usable electricity.
Researchers developed a new spectroscopy method, 'omnidirectional photoluminescence (ODPL) spectroscopy,' to test materials for electric cars and solar cells. The technique can detect defects and impurities at low temperatures.
Researchers at Oak Ridge National Laboratory and the University of Tennessee discovered a way to slow phonons, waves that transport heat, in photovoltaic materials. This discovery holds promise for improving novel hot-carrier solar cells, which convert sunlight to electricity more efficiently than conventional solar cells by harnessing...
Researchers at EPFL have developed a novel deposition method that enables the creation of highly efficient and stable black-phase FAPbI3 perovskite solar cells. The new method, which uses vapor-assisted deposition, overcomes the stability issues associated with traditional methods, resulting in power-conversion efficiencies of over 23%.
Researchers estimate that adding floating solar panels to existing hydropower stations could generate up to 10,600 terawatt-hours of power annually. This would account for about 35% of global electricity consumption in 2018.
Researchers have developed a new type of solar cell that can reflect 99% of the energy it can't convert into electricity, allowing for more efficient use of waste heat from exhaust pipes and chimneys. This technology has the potential to make renewable energy storage cheaper by ten-fold compared to traditional battery-based systems.
Researchers from City University of Hong Kong have developed a novel method to tackle instability and potential environmental impact in perovskite solar cells, achieving high power conversion efficiency while minimizing lead leakage. The team's innovative use of 2D metal-organic frameworks enhances device performance and stability.
A team of researchers suggests using two thin films of different materials to create affordable and efficient solar cells. The proposed configuration achieves a 34% efficiency rate, surpassing the efficiency of individual components.
Scientists investigate how perovskite/silicon tandem solar cells perform in sunny and hot environments, finding that the perovskite bandgap gets larger as the device heats up, allowing more stable compositions to be used.
Researchers at Skoltech have developed a simple and efficient method to convert silicon wafers into nanoparticles in an aqueous solution, providing a new source of sustainable materials. The process enables controlling particle sizes and has implications for optics, photonics, medicine, and other fields.
Scientists from DGIST have developed a novel betavoltaic cell with dye-sensitized electrons, achieving high radiation-to-current conversion efficiency. This innovation offers promising opportunities for small, durable, and efficient nuclear batteries.
Dye-sensitised solar cells can perform more consistently in low-light conditions thanks to improved understanding of electrolyte additives. Researchers have found that certain molecules, such as 4-tert-butylpyridine and 1-methyl-benzimidazole, are crucial to suppressing recombination losses and maximizing efficiency.
Researchers develop a strategy to improve the photovoltaic performance of quasi-bilayer organic solar cells by dispersing donor components into the acceptor-dominant phase, achieving a champion PCE of 15.4%. The incorporation of donors improves charge transport balance and suppresses bimolecular recombination.
Researchers at King Abdullah University of Science & Technology developed ultrathin organic solar cells using inkjet printing, achieving a power conversion efficiency of 4.73 percent and paving the way for flexible, lightweight energy harvesting in various applications.
Researchers at Tohoku University have successfully grown large single crystals of tin monosulfide (SnS), a promising material for next-generation solar cells. The achievement marks a significant step towards developing SnS solar cells with high conversion efficiency and could accelerate their practical application.
A CU student collaborated with three research teams to study perovskite nanocrystals, which have numerous applications. The team discovered a phase transition that affects the material's optical properties and has relevance to applications already in use.
Researchers developed a semitransparent photovoltaic cell with high power conversion efficiency and visible transparency, opening possibilities for power-generating windows and solar energy applications. The study showcases the potential of organic photovoltaics in serving as color-neutral, transparent power sources.
Researchers at University of Michigan develop transparent organic solar cells with 8.1% efficiency and 43.3% transparency, ideal for buildings with glass facades. The new material balances sunlight absorption, voltage, current, resistance, and color-neutral transparency.
Computational experiments on semiconducting polymers show that adding small molecules enhances performance and stability; predicting improved solar cell materials for extreme operational stress-strain conditions. Researchers at Lehigh University used Frontera, the world's fastest academic supercomputer, to demonstrate this finding.
Researchers have observed a significant increase in the photothermoelectric effect in silicon nanoribbons, benefiting from optimization processes and multiphysics modeling. This breakthrough has potential applications for improving photoelectric conversion efficiency by harnessing hot carrier energy.