Researchers at the US’ National Renewable Energy Laboratory have developed a new approach for manufacturing perovskite solar cells that addresses previous problems and yields devices with high efficiency and excellent stability.
, the scientists explain that manufacturing highly stable and efficient perovskites based on a rich mixture of bromine and iodine is considered critical for the creation of tandem solar cells. The two elements, however, tend to separate when exposed to light and heat and thus limit the voltage and stability of a solar cell.“This new growth approach can significantly suppress the phase segregation,” said Kai Zhu, principal investigator on the project and lead author of the new paper.
In the tandem cell, the narrow-bandgap layer is deposited on top of the wide-bandgap layer. The difference in bandgaps allows for more of the solar spectrum to be captured and converted into electricity. The traditional method uses an antisolvent applied to the crystallizing chemicals to create a uniform perovskite film. The new approach relied on what is known as gas quenching, in which a flow of nitrogen was blown onto the chemicals. The result addressed the problem of the bromine and iodine separating, resulting in a perovskite film with improved structural and optoelectronic properties.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
Another Year, Another Record In Denmark's Renewable Energy ProgressThe fresh numbers from 2022 show that Denmark's electricity needs are now covered by 60% renewables. In just 8 years from now, that figure will quadruple.
Leer más »
Revolutionizing Renewable Energy: Using Sunlight To Produce Hydrogen Fuel Out of Thin AirA device that can harvest water from the air and provide hydrogen fuel—entirely powered by solar energy—has been a dream for researchers for decades. Now, EPFL chemical engineer Kevin Sivula and his team have made a significant step towards bringing this vision closer to reality. They have developed
Leer más »
India, UAE close to deal on renewable electricity grid link -Indian ministerIndia and the United Arab Emirates (UAE) are close to a 'major agreement' on a renewable energy interconnection between the two countries, India's Minister of Power and New and Renewable Energy said on Sunday.
Leer más »
India, UAE close to deal on renewable electricity grid link, Indian minister saysIndia and the United Arab Emirates (UAE) are close to a 'major agreement' on a renewable energy interconnection between the two countries, India's Minister of Power and New and Renewable Energy said on Sunday.
Leer más »
Get Gephardt: Provo woman's solar panels are not generating energyChanges in federal funding are fueling a boom in home solar systems, but the KSL Investigators routinely get tips from Utahns worried their panel projects are getting left behind.
Leer más »
EU energy crisis: German solar power boom sees skyrocketing revenueIncreasing demand for home solar power systems in Germany (to replace Russian gas) could see revenues at one German solar firm rise by more than 50 percent this year.
Leer más »