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New performance record for eco-friendly nanocrystal solar cells

ICFO researchers have reported on a post-deposition in situ passivation strategy that improves surface passivation, yielding nanocrystal ink films with enhanced optoelectronic properties. This approach has led to the development of ultrathin solar cells with higher power conversion efficiency than their multi-step deposition counterparts.

SourceICFO-The Institute of Photonic Sciences·JournalEnergy & Environmental Science·DateOct 24, 2024

Streamlining solar cell structure and fabrication for more affordable energy

Researchers at City University of Hong Kong have developed a new fabrication technique for perovskite solar cells, achieving power conversion efficiencies over 25% and 95% efficiency after 2,000 hours. This simplification makes industrial production more cost-effective and paves the way for more reliable and efficient solar cells.

A new method combining spatiotemporal decomposition and machine learning for the prediction of sunspot numbers and magnetic synoptic maps

Researchers develop a new method combining machine learning, mode decomposition, and harmonic reconstruction to predict solar activity levels. The study reveals complex short-period disturbances in the photospheric magnetic field around the solar maximum and predicts sunspot numbers for Solar Cycle 25.

SourceScience China Press·JournalScience China Earth Sciences·DateSep 26, 2024

Groundbreaking achievement: NSF Daniel K. Inouye solar telescope produces its first magnetic field maps of the sun’s corona

The NSF Daniel K. Inouye Solar Telescope successfully produced its first detailed maps of the Sun's coronal magnetic fields, a breakthrough in solar physics. This achievement enhances our understanding of space weather and its impact on Earth's technology-dependent society, which is crucial for safeguarding infrastructure.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalScience Advances·TypeObservational study·DateSep 11, 2024

DGIST identifies what causes electron-hole separation in thin-film solar cells to increase solar cell efficiency

A team of researchers characterized electron-hole separation in kesterite thin-film solar cells using scanning probe microscopy. They found that defects at the crystal interface cause electron-hole recombination losses, but suggested creating a light-absorbing layer with higher energy levels to improve efficiency.

Climate change will increase value of residential rooftop solar panels across US, study shows

A new study led by the University of Michigan predicts that climate change will increase the financial benefits of residential rooftop solar panels in the US, with households potentially saving hundreds of dollars annually. The study found that increased cooling demand due to warmer temperatures and rising air conditioning needs will d...

SourceUniversity of Michigan·JournalNature Climate Change·DateApr 19, 2024

New four-terminal tandem organic solar cell achieves 16,94% power conversion efficiency

Researchers at ICFO have fabricated a new four-terminal tandem organic solar cell with a high power conversion efficiency of 16.94%, achieving a significant improvement over previous records for four-terminal tandem devices. The device features an ultrathin transparent silver electrode, enabling efficient light transmission and operation.

Long-period oscillations control the Sun’s differential rotation

Researchers have discovered that high-latitude long-period oscillations play a crucial role in limiting the Sun's pole-to-equator differential rotation. The temperature difference between the poles and equator is found to be less than seven degrees, controlling the angular momentum balance in the Sun.

SourceMax Planck Institute for Solar System Research·JournalScience Advances·TypeComputational simulation/modeling·DateMar 27, 2024

Reimagining the future of solar energy

Scientists at the University of Cambridge discovered that making solar cells super-efficient is harder than thought, but found alternative ways to improve energy capture. They proposed flexible, semi-transparent panels that can fold up and be integrated into various settings.

SourceUniversity of Cambridge·JournalJoule·DateMar 18, 2024

NUS researchers invent new triple-junction tandem solar cells with world-record efficiency

The National University of Singapore (NUS) team engineered a new cyanate-integrated perovskite solar cell that achieves a certified world-record power conversion efficiency of 27.1%, surpassing other multi-junction solar cells. The triple-junction perovskite/Si tandem solar cell remains stable and efficient even after extended testing.

University of Paderborn researchers use Hawk supercomputer and lean into imperfection to improve solar cell efficiency

A team led by Prof. Wolf Gero Schmidt used Hawk supercomputer to study how strategic impurities in solar cells can improve performance. They discovered that certain defects can improve exciton transfer, leading to more energy captured. This breakthrough could lead to more efficient and climate-friendly energy production.

SourceGauss Centre for Supercomputing·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateFeb 27, 2024

KIER’s success in the development of the world's top-level semi-transparent perovskite solar cells

Researchers tackled metal oxide layer degradation in semi-transparent perovskite solar cells, discovering lithium ions diffuse into the buffer layer, degrading its characteristics. Optimizing oxidation time led to a stable device with impressive efficiency and retention of over 99% initial efficiency.

SourceNational Research Council of Science & Technology·JournalAdvanced Energy Materials·DateFeb 21, 2024

Risks and opportunities of solar-powered groundwater irrigation

The rapid transition to solar-powered groundwater irrigation in low-and-middle-income countries has led to over 500,000 solar pumps installed in South Asia and Sub-Saharan Africa. However, the benefits of this transition are complex and may come with risks, including increased groundwater extraction and potential depletion of aquifers.

KAUST scientists unveil blueprint for affordable solar cells to power Saudi Arabia and beyond

Researchers at KAUST Solar Center have developed a roadmap for commercializing perovskite/silicon tandem solar cells, which combine efficient light absorption and long-term stability. The technology has the potential to meet Saudi Arabia's solar targets and exceed $10 billion in market value within a decade.

A KAIST research team develops high-performance stretchable solar cells​

A KAIST research team developed a new conductive polymer material that achieved both high electrical performance and elasticity, introducing the world’s highest-performing stretchable organic solar cell. The team built a device that can be stretched up to 40% during operation, demonstrating its applicability for wearable devices.

Wood materials make for reliable organic solar cells

Scientists at Linköping University have created stable and environmentally friendly organic solar cells by incorporating untreated kraft lignin into the electron transport layer. This innovation improves the overall efficiency and reliability of organic solar cells, paving the way for a more sustainable future.

SourceLinköping University·JournalAdvanced Materials·DateDec 6, 2023

New database shines spotlight on decades of solar mirror research

A new database containing thousands of solar mirror samples offers valuable insights into degradation trends over decades. The Solar Mirror Materials Database (SMMD) provides natural and accelerated exposure data for accelerating test development, design optimization, and manufacturing guidance.

SourceDOE/National Renewable Energy Laboratory·JournalJournal of Solar Energy Engineering·TypeData/statistical analysis·DateOct 31, 2023

How robots can help find the solar energy of the future

Researchers at Osaka University use a robotic system to automate key experimental processes, accelerating the search for new materials. They evaluate 576 thin-film semiconductor samples using photoabsorption spectroscopy, optical microscopy, and time-resolved microwave conductivity analyses.

SourceOsaka University·JournalJACS Au·TypeExperimental study·DateOct 30, 2023