Solar Energy News -- ScienceDaily
Solar Energy Information. Read the latest news and techniques for efficient solar photovoltaic power, new solar energy systems and more.
Perovskite solar cells: Mesoporous interface mitigates the impact of defects
18 Jan 2018 at 8:41am
The nominal cell operating life of perovskite solar cells is strongly influenced by their inner architecture.
Semiconductor breakthrough may be game-changer for organic solar cells
17 Jan 2018 at 10:11am
In an advance that could push cheap, ubiquitous solar power closer to reality, researchers have found a way to coax electrons to travel much further than was previously thought possible in the materials often used for organic solar cells and other organic semiconductors.
Perovskite solar cells: Perfection not required
16 Jan 2018 at 8:11am
Metal-organic perovskite layers for solar cells are frequently fabricated using the spin coating technique on industry-relevant compact substrates. These perovskite layers generally exhibit numerous holes, yet attain astonishingly high levels of efficiency. The reason that these holes do not lead to significant short circuits between the front and back contact has now been discovered.
Magnetic liquids improve energy efficiency of buildings
16 Jan 2018 at 6:36am
Climate protection and the reduction of carbon dioxide emissions have been on top of global development agendas. Accordingly, research and development projects have been conducted on national and international levels, which aim for the improvement of the CO2-footprint in diverse processes. Apart from particularly energy-intensive sectors of the industry, the building sector in particular is among the biggest CO2-emmitters: from residential homes, manufacturing facilities and storage depots to big commercial buildings, about 40 percent of the energy consumption within the EU are due to the heating, cooling, air conditioning and lighting of buildings.
Slow 'hot electrons' could improve solar cell efficiency
16 Jan 2018 at 5:50am
Photons with energy higher than the 'band gap' of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy is lost very fast, as it is converted into heat so it does not contribute to the voltage. Researchers have now found a material in which these hot electrons retain their high energy levels for much longer.
Solar fuels: better efficiency using microwires
15 Jan 2018 at 9:16am
Researchers have made significant efficiency improvements to the technology used to generate solar fuels. This involves the direct conversion of energy from sunlight into a usable fuel (in this case, hydrogen). Using only earth-abundant materials, they developed the most efficient conversion method to date. The trick was to decouple the site where sunlight is captured from the site where the conversion reaction takes place.
Harnessing the power of algae: New, greener fuel cells move step closer to re...
10 Jan 2018 at 8:29am
A new design of algae-powered fuel cells that is five times more efficient than existing plant and algal models, as well as being potentially more cost-effective to produce and practical to use, has been developed.
Sun, wind, and power trading
9 Jan 2018 at 7:28am
The use of renewables like the sun and wind can cause fluctuations in power grids. But what impact do these fluctuations have on security of supply? To answer this question, scientists analyzed different types of fluctuations in several power grids in Europe, Japan, and the USA -- and came to surprising conclusions.
Making solar energy more efficient
5 Jan 2018 at 5:23am
Researchers have demonstrated methods of optimizing the capture of sunlight.
Laser evaporation technology to create new solar materials
3 Jan 2018 at 7:11am
Researchers use lasers to blast solutions containing delicate organic compounds to grow new types of crystals for solar cells, light-emitting diodes and photodetectors.
Tweaking quantum dots powers-up double-pane solar windows
2 Jan 2018 at 10:48am
Researchers are creating double-pane solar windows that generate electricity with greater efficiency and also create shading and insulation. It's all made possible by a new window architecture which utilizes two different layers of low-cost quantum dots tuned to absorb different parts of the solar spectrum. The approach complements existing photovoltaic technology by adding high-efficiency sunlight collectors to existing solar panels or integrating them as semitransparent windows into a building's architecture.
Standardizing perovskite aging measurements
2 Jan 2018 at 7:33am
Scientists have produced a data-driven proposal for standardizing the measurements of perovskite solar cell stability and degradation. The work aims to create consensus in the field and overcome one of the major hurdles on the way to commercializing perovskite photovoltaics.
Alaskan microgrids offer energy resilience and independence
22 Dec 2017 at 6:27am
The electrical grid in the contiguous United States is a behemoth of interconnected systems. If one section fails or is sabotaged, millions of citizens could be without power. Remote villages in Alaska provide an example of how safeguards could build resilience into a larger electrical grid. These communities rely on microgrids -- small, local power stations that operate autonomously.
New technique allows rapid screening for new types of solar cells
20 Dec 2017 at 10:16am
A new method could greatly speed up the development of novel new materials for future photovoltaic cells.
Halogens can increase solar cell performance by 25 per cent
20 Dec 2017 at 6:17am
New research shows that using halogens -- a class of elements that include fluoride, bromine, chlorine and iodine -- in a dye-sensitized solar cell can increase conversion efficiency by 25 per cent. The discovery could set the stage for improved solar cell designs.