Solar Energy News -- ScienceDaily
Scientists develop artificial photosynthesis device for greener ethylene production
Fri, 24 Nov 2017 08:47:55 EST
A newly developed device could reduce the carbon footprint of ethylene production, report scientists.
Watching atoms move in hybrid perovskite crystals reveals clues to improving solar cells
Tue, 21 Nov 2017 13:23:31 EST
The discovery of nanoscale changes deep inside hybrid perovskites could shed light on developing low-cost, high-efficiency solar cells. Using X-ray beams and lasers, a team of researchers discovered how the movement of ions in hybrid perovskites causes certain regions within the material to become better solar cells than other parts.
Artificial photosynthesis gets big boost from new catalyst
Mon, 20 Nov 2017 11:13:24 EST
A new catalyst brings researchers one step closer to artificial photosynthesis -- a system that, just like plants, would use renewable energy to convert carbon dioxide (CO2) into stored chemical energy. By both capturing carbon emissions and storing energy from solar or wind power, the invention provides a one-two punch in the fight against climate change.
Hydrogen cars for the masses one step closer to reality, thanks to invention
Mon, 20 Nov 2017 09:37:18 EST
A new device that can inexpensively and efficiently create and store energy and create hydrogen fuel, and that needs only sunlight to operate, has now been developed by researchers.
Hydrogen fuel from water by harnessing red and near-infrared regions of sunlight
Fri, 17 Nov 2017 10:37:42 EST
Scientists have synthesized a compound that absorbs near-infrared light to produce hydrogen from water. The compound contains three ruthenium atoms connected by an organic molecule. The absorbed light stimulates electrons to 'jump' into orbitals that do not exist in other, similar compounds. This is the first successful use of infrared light to reduce water into hydrogen, which can be used for energy conversion and storage, and other industrial purposes in a future sustainable energy society.
Pine and poplar wood improve sunlight-driven water purification
Wed, 15 Nov 2017 13:09:31 EST
Engineers have found that porous types of wood from trees like poplar and pine can greatly increase the efficiency of water-to-steam conversion under sunlight. The findings could be used in a simple and inexpensive biodegradable device for water purification.
Butterfly wing inspires photovoltaics: Light absorption can be enhanced by up to 200 percent
Tue, 14 Nov 2017 09:19:52 EST
Sunlight reflected by solar cells is lost as unused energy. The wings of the butterfly Pachliopta aristolochiae are drilled by nanostructures (nanoholes) that help absorbing light over a wide spectrum far better than smooth surfaces. Researchers have now succeeded in transferring these nanostructures to solar cells and, thus, enhancing their light absorption rate by up to 200 percent.
How understanding photosynthesis informs solar energy, materials science, nanotechnology and photonics
Mon, 13 Nov 2017 11:11:20 EST
Scientists explore new methods to capitalize on Nature's light-harvesting secrets. Their new study outlines the design of a synthetic system for energy gathering, conversion and transport that may point the way to innovations in solar energy, materials science, nanotechnology and photonics.
Scientists elevate quantum dot solar cell world record
Tue, 31 Oct 2017 12:03:24 EDT
Researchers have established a new world efficiency record for quantum dot solar cells, at 13.4 percent.
New fractal-like concentrating solar power receivers are better at absorbing sunlight
Wed, 25 Oct 2017 12:24:37 EDT
Engineers have developed new fractal-like, concentrating solar power receivers for small- to medium-scale use that are up to 20 percent more effective at absorbing sunlight than current technology.
Among 'green' energy, hydropower is the most dangerous
Wed, 25 Oct 2017 10:31:48 EDT
Many governments are promoting a move away from fossil fuels towards renewable energy sources. However, in a new study, scientists highlight some of the ecological dangers this wave of 'green' energy poses.
Highly stable perovskite solar cells developed
Wed, 25 Oct 2017 10:31:27 EDT
Researchers have developed highly stable perovskite solar cells (PSCs), using edged-selectively fluorine (F) functionalized graphene nano-platelets (EFGnPs). The breakthrough is especially significant since the cells are made out of fluorine, a low-cost alternative to gold.
Air pollution cuts solar energy potential in China
Mon, 23 Oct 2017 18:26:04 EDT
Severe air pollution in northern and eastern China blocks about 20 percent of sunlight from reaching solar panel arrays in winter, according to a new study.
Transparent solar technology represents 'wave of the future'
Mon, 23 Oct 2017 12:35:26 EDT
See-through solar materials that can be applied to windows represent a massive source of untapped energy and could harvest as much power as bigger, bulkier rooftop solar units, scientists report.
Scientists create most powerful micro-scale bio-solar cell yet
Tue, 17 Oct 2017 11:01:28 EDT
Researchers have created a micro-scale biological solar cell that generates a higher power density for longer than any existing cell of its kind.
A new miniature solution for storing renewable energy
Thu, 12 Oct 2017 10:38:10 EDT
In a first for metal-organic frameworks, scientists have demonstrated their metallic conductivity.
Mimicking two natural energy processes with a single catalyst
Wed, 11 Oct 2017 10:07:25 EDT
Researchers take inspiration from natural chemical processes based on hydrogenase and photosystem II, to produce a single metal catalyst with both fuel cell and solar cell functionalities. The combination of these two processes into one system suggests great potential for biologically inspired energy generation technologies.
Solar-powered devices made of wood could help mitigate water scarcity crisis
Tue, 10 Oct 2017 22:45:56 EDT
Energy from the sun and a block of wood smaller than an adult's hand are the only components needed to heat water to its steaming point in these purifying devices.
Solar energy: Prototype shows how tiny photodetectors can double their efficiency
Mon, 09 Oct 2017 12:32:02 EDT
Physicists have developed a photodetector -- a device that converts light into electrons -- by combining two distinct inorganic materials and producing quantum mechanical processes that could revolutionize the way solar energy is collected. The researchers stacked two atomic layers of tungsten diselenide on a single atomic layer of molybdenum diselenide. Such stacking results in properties vastly different from those of the parent layers, allowing for customized electronic engineering at the tiniest possible scale.
New nanomaterial can extract hydrogen fuel from seawater
Wed, 04 Oct 2017 16:20:13 EDT
A new hybrid nanomaterial harvests solar energy and uses it to extract hydrogen from seawater, cheaply and efficiently. Future commercialization could mean a new source of environmentally friendly fuel and less dependence on fossil fuels.