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Perovskite solar cells made of peppermint oil and walnut aroma food additives, preventing lead leakage

Researchers developed a new material technology to create high-efficiency perovskite solar cells using eco-friendly organic materials dissolved in peppermint oil or walnut aroma. The new polymers overcame the instability issue of conventional perovskite solar cells, maintaining 88% efficiency after 30 days.

SourcePohang University of Science & Technology (POSTECH)·JournalAdvanced Energy Materials·DateFeb 26, 2020

Russian scientists propose a technology reducing the cost of high-efficiency solar cells

Researchers from ITMO University have proposed a technology for manufacturing high-efficiency solar cells based on A3B5 semiconductors integrated on a silicon substrate, which may increase the efficiency of existing photovoltaic converters by 1.5 times. The new technology could lead to more effective and affordable solar energy solutions.

SourceITMO University·JournalSolar Energy Materials and Solar Cells·DateFeb 7, 2020

A consensus statement establishes the protocols to assess and report stability of perovskite photovoltaic devices

A new consensus statement has been established to assess and report the stability of perovskite photovoltaic devices. The agreement aims to improve reproducibility in studies by providing a set of testing procedures specific to this technology, including light-dark-cycling and intrinsic stability testing.

In breakthrough method of creating solar material, NREL scientists prove the impossible really isn't

Researchers at NREL successfully integrated aluminum into their HVPE reactor and demonstrated the growth of semiconductors aluminum indium phosphide (AlInP) and aluminum gallium indium phosphide (AlGaInP). This breakthrough could lead to cheaper solar cells with comparable efficiency to MOVPE-grown ones.

SourceDOE/National Renewable Energy Laboratory·JournalACS Applied Energy Materials·DateDec 17, 2019

Punching holes in opaque solar cells turns them transparent

Researchers in Korea have developed a strategy to transform opaque solar cells into transparent ones, allowing for more efficient energy harvesting. The transparent solar cells have a high-power conversion efficiency of 12.2 percent and long-term stability, making them ideal for turning windows into solar panels.

SourceCell Press·JournalJoule·DateDec 11, 2019

Daylight damage-saving time

A research team at Kanazawa University investigated the molecular mechanisms behind organic solar cell damage from sunlight. They found that UV light causes fragile molecules to degrade, leading to reduced efficiency. This study may lead to the development of more robust and efficient solar cells.

SourceKanazawa University·JournalOrganic Electronics·DateDec 2, 2019

2D materials boost carrier multiplication

Researchers at the Institute for Basic Science discovered a carrier multiplication process in 2D semiconductors that could improve the efficiency of solar cells. The phenomenon is more efficient in 2D materials than in bulk semiconductors and has the potential to increase the maximum power conversion efficiency up to 46%

SourceInstitute for Basic Science·JournalNature Communications·DateDec 2, 2019

Ternary acceptor and donor materials increase photon harvesting in organic solar cells

Researchers have developed ternary organic solar cells with non-fullerene electron acceptors or polymer donors, improving spectral response and photon-harvesting capabilities. The addition of these third components enhances energy and charge transfer, leading to increased efficiency and potentially semi-transparent solar cells.

SourceAmerican Institute of Physics·JournalApplied Physics Reviews·DateNov 26, 2019

New material points toward highly efficient solar cells

A new type of perovskite material eliminates lead and improves stability for next-generation solar cells. These materials have been shown to be as much as 28% efficient compared to current panels capturing only 15-18%. The new organic-inorganic hybrid structure also offers a blueprint for other functional hybrid materials.

SourcePurdue University·JournalNature Chemistry·DateNov 12, 2019

Perovskite solar cells get an upgrade

Rice University scientists have overcome a major hurdle keeping perovskite-based solar cells from achieving mainstream use by engineering defects and retaining efficiency. They replaced lead with indium, resulting in cells that can be made in open air and last for months.

SourceRice University·JournalAdvanced Materials·DateNov 5, 2019

Can solar technology kill cancer cells?

Researchers at Michigan State University have developed a new approach to detect and attack cancer cells using light-activated fluorescent dyes. The breakthrough utilizes technology traditionally reserved for solar power, offering promising results in breast, lung, and skin cancer cell lines and mouse models.

SourceMichigan State University·JournalScientific Reports·DateOct 25, 2019

Biological material boosts solar cell performance

Researchers at Penn State have successfully increased the efficiency of perovskite solar cells by adding the protein bacteriorhodopsin, boosting it from 14.5% to 17%. This breakthrough could lead to more environmentally friendly and cost-effective bioperovskite solar cell technology.

SourcePenn State·JournalACS Applied Materials & Interfaces·DateOct 22, 2019

Energy flow in the nano range

Researchers at the University of Würzburg have developed two new spectroscopic methods to study energy transport on the nanoscale. By deciphering the behavior of double-walled nanotubes, they aim to improve artificial light-harvesting antennas and photovoltaics.

SourceUniversity of Würzburg·JournalNature Communications·DateOct 18, 2019

DGIST achieves the highest efficiency of flexible CZTSSe thin-film solar cell

The DGIST research team has developed a flexible CZTSSe thin-film solar cell with an unprecedented efficiency of 11.4%, breaking the previous record. This achievement enables mass production using eco-friendly materials, making it easier to commercialize and apply in various fields like wearables, buildings, and automobiles.

Welcome indoors, solar cells

Researchers at Linköping University have developed organic solar cells that can harness indoor light to produce electricity. The cells achieve high energy efficiency, with some variants converting up to 26.1% of ambient light into electricity.

SourceLinköping University·JournalNature Energy·DateSep 16, 2019

Device generates light from the cold night sky

Researchers develop a low-cost thermoelectric generator that harnesses temperature differences to produce renewable electricity at night, when solar power is not available. The device can generate up to 25 milliwatts of energy per square meter and has the potential to be scaled for practical use.

SourceCell Press·JournalJoule·DateSep 12, 2019

Flexible solar cells a step closer to reality

Researchers at the University of Warwick have discovered that organic solar cells only need 1% of their surface area to be electrically conductive, opening up possibilities for composite materials and improved device performance. This breakthrough could enable flexible solar cells to become a commercial reality sooner.

SourceUniversity of Warwick·JournalAdvanced Functional Materials·DateSep 11, 2019