Solar Energy News -- ScienceDaily
New solar sailing technology for NASA
Thu, 19 Jul 2018 16:50:34 EDT
Researchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials could be used to steer reflected or transmitted photons and enable near-Earth, interplanetary and interstellar space travel.
Traveling to the sun: Why won't Parker Solar Probe melt?
Thu, 19 Jul 2018 16:50:26 EDT
This summer, NASA's Parker Solar Probe will launch to travel closer to the Sun, deeper into the solar atmosphere, than any mission before it. Cutting-edge technology and engineering will help it beat the heat.
New battery could store wind and solar electricity affordably and at room temperature
Thu, 19 Jul 2018 16:50:19 EDT
A new type of flow battery that involves a liquid metal more than doubled the maximum voltage of conventional flow batteries and could lead to affordable storage of renewable power.
How to build efficient organic solar cells
Mon, 16 Jul 2018 11:45:43 EDT
Twenty-five researchers from seven research institutes have put their heads together to draw up rules for designing high-efficiency organic solar cells.
How gold nanoparticles could improve solar energy storage
Thu, 12 Jul 2018 11:45:14 EDT
Star-shaped gold nanoparticles, coated with a semiconductor, can produce hydrogen from water over four times more efficiently than other methods - opening the door to improved storage of solar energy and other advances that could boost renewable energy use and combat climate change, according to researchers.
Conductive property of graphene, advancing promise of solar technology
Tue, 10 Jul 2018 10:16:32 EDT
Researchers have connected a graphene layer with two other atomic layers (molybdenum diselenide and tungsten disulfide) thereby extending the lifetime of excited electrons in graphene by several hundred times. The work may speed development of ultrathin and flexible solar cells with high efficiency.
Salt is key ingredient for cheaper and more efficient batteries
Mon, 09 Jul 2018 10:11:21 EDT
A new design of rechargeable battery, created using salt, could lead the way for greener energy. Researchers have designed the novel energy store which allows for greater power while also lasting longer than conventional batteries.
New world record for direct solar water-splitting efficiency
Thu, 05 Jul 2018 11:40:03 EDT
An international team of researchers has now succeeded in raising the efficiency of producing hydrogen from direct solar water-splitting to a record 19 per cent. They did so by combining a tandem solar cell of III-V semiconductors with a catalyst of rhodium nanoparticles and a crystalline titanium dioxide coating.
Bacteria-powered solar cell converts light to energy, even under overcast skies
Thu, 05 Jul 2018 08:42:15 EDT
Researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy. Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright light. This innovation could be a step toward wider adoption of solar power in places like British Columbia and parts of northern Europe where overcast skies are common.
Material could help windows both power your home and control its temperature
Tue, 03 Jul 2018 11:28:39 EDT
Environmentally friendly building trends have boosted the popularity of window coatings that keep heating and cooling costs down by blocking out unneeded parts of sunlight. They have also inspired scientists and engineers to create thin, see-through solar cells to turn windows into miniature electricity generators. Researchers have gone a step further and combined these two functions into one window-compatible material that could double the energy efficiency of an average household.
High performance nitride semiconductor for environmentally friendly photovoltaics
Tue, 03 Jul 2018 11:00:07 EDT
A research team has shown how n-type and p-type copper nitride semiconductors could potentially replace the conventional toxic or rare materials in photovoltaic cells.
The vanishing nuclear industry
Mon, 02 Jul 2018 15:47:36 EDT
Could nuclear power make a significant contribution to decarbonizing the US energy system over the next three or four decades? Probably not.
Breakthrough in perovskite solar cell technology
Fri, 29 Jun 2018 10:25:51 EDT
A new technique has produced the highest performing inverted perovskite solar cell ever recorded.
A milestone on the path towards efficient solar cells: Singlet fission
Wed, 27 Jun 2018 16:03:43 EDT
Generating more electricity from solar cells and conducting further research into so-called singlet fission. Singlet fission could considerably boost the efficiency of solar cells -- and thanks to the latest research it is one step closer to becoming possible.
Major challenge in mass production of low-cost solar cells solved
Thu, 21 Jun 2018 12:18:55 EDT
A team has solved a major fabrication challenge for perovskite cells -- the intriguing potential challengers to silicon-based solar cells. The team reveals a new scalable means of applying the compound PCBM, a critical component, to perovskite cells.
Buildings as power stations work: They generate more energy than they consume, data shows
Wed, 20 Jun 2018 19:37:29 EDT
The UK's first energy-positive classroom generated more than one and a half times the energy it consumed, according to data from its first year of operation, the team has revealed. The findings were announced as the researchers launched the next phase of their research, gathering data and evidence on an office building, constructed using similar methods.
New material for splitting water
Tue, 19 Jun 2018 12:31:22 EDT
Solar energy is clean and abundant, but when the sun isn't shining, you must store the energy in batteries or through a process called photocatalysis. In photocatalytic water splitting, sunlight separates water into hydrogen and oxygen, which can then be recombined in a fuel cell to release energy. Now, a new class of materials -- halide double perovskites -- may have just the right properties to split water.
Solar cells combining silicon with perovskite have achieved record efficiency of 25.2 percent
Mon, 11 Jun 2018 13:35:35 EDT
Researchers have combined silicon- and perovskite-based solar cells. The resulting efficiency of 25.2 percent is a record for this type of tandem cell. Their innovative yet simple manufacturing technique could be directly integrated into existing production lines, and efficiency could eventually rise above 30 percent.
Lead-free, efficient perovskite for photovoltaic cells
Fri, 08 Jun 2018 09:36:51 EDT
A research team has proposed a perovskite material that serves as a potential active material for highly efficient lead-free thin-film photovoltaic devices. This material is expected to lay the foundation to overcome previously known limitations of perovskite including its stability and toxicity issues.
Flexible solar cells: Will they someday power your devices?
Wed, 06 Jun 2018 08:22:55 EDT
Researchers are looking at the challenges of mass producing and commercializing the now-experimental technology.