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Search results for “Solar Energy”

1,000+ results for "Solar Energy"

Changing the color of light

The University of Delaware research team aims to improve solar cells and medical imaging by changing the color of low-energy light into higher-energy colors. Their novel approach could lead to a significant boost in solar energy harvesting, with predicted efficiencies of up to 30%.

Perovskite solar technology shows quick energy returns

A new study by Northwestern University and the U.S. Department of Energy's Argonne National Laboratory found that perovskite solar modules have a significantly shorter energy payback time than existing options, with some models returning energy investment in just two to three months. The researchers also analyzed the environmental impa...

SourceNorthwestern University·JournalEnergy & Environmental Science·DateJul 20, 2015

Researchers develop new approach that combines biomass conversion, solar energy conversion

Scientists at the University of Wisconsin-Madison developed a novel approach to combine biomass conversion and solar energy conversion, enabling more efficient hydrogen production and creating a valuable byproduct. This breakthrough could significantly increase the efficiency and utility of solar-fuel-producing photoelectrochemical cells.

SourceUniversity of Wisconsin-Madison·JournalNature Chemistry·DateMar 10, 2015

Supersonic electrons could produce future solar fuel

Researchers at Lund University successfully tracked supersonic electrons through a light-converting molecule, finding that the conversion of light to chemical energy happens rapidly without energy loss as heat. The study provides insights into constructing molecules for artificial photosynthesis, paving the way for solar fuel production.

SourceLund University·JournalNature Communications·DateMar 2, 2015

High efficiency concentrating solar cells move to the rooftop

Researchers developed a microscale solar concentration technology that enables ultra-high efficiency solar cells to be used on rooftops. The system consists of miniaturized photovoltaic cells, 3D-printed lens arrays and a moveable focusing mechanism, reducing size, weight and cost while increasing power generation.

SourcePenn State·JournalNature Communications·DateFeb 5, 2015

Demystifying nanocrystal solar cells

Researchers at ETH Zurich developed a physical model explaining electron transport in nanocrystal solar cells, which could lead to improved efficiency. The model reveals that nanocrystal size can be controlled to optimize absorption of sunlight, enabling the creation of flexible and thin solar cells with higher performance.

SourceETH Zurich·JournalNature Communications·DateJan 28, 2015

Sun's activity influences natural climate change

Researchers have reconstructed solar activity at the end of the last ice age, showing a persistent link between solar activity and Greenland climate. The study suggests that reduced solar activity could lead to colder winters in Northern Europe, while warmer winters are seen in Greenland with greater snowfall.

SourceLund University·JournalNature Geoscience·DateAug 18, 2014

Self-cooling solar cells boost power, last longer

Researchers have developed a self-cooling method for solar cells using silica glass to reduce overheating, improving efficiency and lifespan. The design enhances infrared 'window' through Earth's atmosphere to redirect excess heat away from the solar cell.

SourceOptica·JournalOptica·DateJul 22, 2014

Has solar activity influence on the Earth's global warming?

A recent study reveals significant resonance cycles between solar activity and Earth's surface temperature, providing a possible explanation for recent global warming. The research uses wavelet analysis and cross-correlation methods to investigate the periodicities of solar activity and its correlations with the Earth's temperature dur...

SourceScience China Press·JournalChinese Science Bulletin·DateJun 4, 2014