Solar Energy News -- ScienceDaily
Making solar cells is like buttering bread
Thu, 21 Mar 2019 13:03:50 EDT
Formamidinium lead iodide is a very good material for photovoltaic cells, but getting the correct and stable crystal structure is a challenge. The techniques developed so far have produced rather poor results. However, scientists have now cracked it -- using a blade and a dipping solution.
True-meaning wearable displays: Self-powered, washable and wearable
Thu, 21 Mar 2019 10:28:33 EDT
When we think about clothes, they are usually formed with textiles and have to be both wearable and washable for daily use; however, smart clothing has had a problem with its power sources and moisture permeability, which causes the devices to malfunction. This problem has now been overcome by a research team, who developed a textile-based wearable display module technology that is washable and does not require an external power source.
Researchers create hydrogen fuel from seawater
Mon, 18 Mar 2019 15:17:26 EDT
Splitting water into hydrogen and oxygen presents an alternative to fossil fuels, but purified water is a precious resource. A team has now developed a way to harness seawater -- Earth's most abundant source -- for chemical energy.
Solar-powered moisture harvester collects and cleans water from air
Thu, 14 Mar 2019 12:31:49 EDT
A breakthrough by engineers offers new solution through solar-powered technology that absorbs moisture from the air and returns it as clean, usable water. This 'super-sponge' could be used in disaster situations, poverty-stricken areas and developing countries.
Powering devices -- with a desk lamp?
Wed, 13 Mar 2019 10:32:02 EDT
Batteries power most of our devices, and even some cars. But researchers now report in ACS Applied Materials & Interfaces a step toward running electronic devices in homes and offices on the light coming from lamps scattered around the room. The team developed special light harvesters, like those used for solar power, optimized to produce energy from ambient indoor lighting.
Finding the right 'dose' for solar geoengineering
Mon, 11 Mar 2019 12:51:43 EDT
New research finds that if solar geoengineering is used to cut global temperature increases in half, there could be worldwide benefits without exacerbating change in any large geographic area.
New cell-sized micro robots might make incredible journeys
Thu, 07 Mar 2019 16:19:06 EST
Researchers have created tiny functional, remote-powered, walking robots, developing a multistep nanofabrication technique that turns a 4-inch specialized silicon wafer into a million microscopic robots in just weeks. Each one of a robot's four legs is just under 100-atoms-thick, but powered by laser light hitting the robots' solar panels, they propel the tiny robots. The researchers are now working on smart versions of the robots that could potentially make incredible journeys in the human body.
Spectroscopy on individual molecules
Thu, 07 Mar 2019 13:15:01 EST
While spectroscopic measurements are normally averaged over myriad molecules, a new method provides precise information about the interaction of individual molecules with their environment. This will accelerate the identification of efficient molecules for future photovoltaic technologies, for example.
Shifting away from coal is key to cutting greenhouse gas emissions
Thu, 07 Mar 2019 10:32:01 EST
The United States could fulfill its greenhouse gas emission pledge under the Paris Climate Agreement by virtually eliminating coal as an energy source by 2024, according to new research.
Improving solar cell efficiency with a bucket of water
Wed, 06 Mar 2019 12:53:46 EST
Beth Parks has devised an astonishingly simple way to overcome a limitation of solar cells -- a bucket of water. She developed a frame that holds the solar cell with a bucket suspended on either end. By controlling the leak of water from one of the buckets, the solar cell shifts, tracking the arc of the sun throughout the day.
Good news! Europe's electric grid will still work even as the world crumbles
Wed, 06 Mar 2019 11:07:08 EST
Temperatures may climb and seas may rise, but the lights (and, undoubtedly, the air conditioning) will still be on in nations with high capacities for wind and solar energy. New research suggests that these electricity systems should work almost equally well in both historical and future European climates despite changing weather patterns.
Light from an exotic crystal semiconductor could lead to better solar cells
Wed, 06 Mar 2019 08:17:19 EST
Scientists have found a new way to control light emitted by exotic crystal semiconductors, which could lead to more efficient solar cells and other advances in electronics, according to a new study.
Machine learning used to identify high-performing solar materials
Tue, 05 Mar 2019 09:28:37 EST
Thanks to a study that combines the power of supercomputing with data science and experimental methods, researchers have developed a novel 'design to device' approach to identify promising materials for dye-sensitized solar cells (DSSCs).
Chirality yields colossal photocurrent
Mon, 04 Mar 2019 12:16:05 EST
Typically, light is converted to electricity by chemically altering a semiconductor to have a built-in electric field. A team of researchers has developed an alternative means using a unique semi-metal that intrinsically generates direct current through the nonlinear mixing of the waves of light.
Layering titanium oxide's different mineral forms for better solar cells
Thu, 28 Feb 2019 09:36:07 EST
A research team has improved the efficiency of a new type of solar cell with a double layer consisting of pure anatase and brookite, two different mineral forms of titanium oxide. Using water-solute brookite nanoparticles, a brookite layer was fabricated on top of anatase, increasing solar cell efficiency by up to 16.82 percent.
How power-to-gas technology can be green and profitable
Tue, 26 Feb 2019 11:23:15 EST
Hydrogen production based on wind power can already be commercially viable today. Until now, it was generally assumed that this environmentally friendly power-to-gas technology could not be implemented profitably. Economists have now described, based on the market situations in Germany and Texas, how flexible production facilities could make this technology a key component in the transition of the energy system.
Development of nonvolatile spintronics-based 50uW microcontroller unit operating at 200MHz
Thu, 21 Feb 2019 09:50:41 EST
Researchers have announced the development of a nonvolatile microcontroller unit (MCU) which achieves both high performance and ultra-low power by utilizing spintronics-based VLSI design technology.
Lithium-air batteries can store energy for cars, houses and industry
Fri, 15 Feb 2019 13:59:07 EST
Growth in the offer of renewable energy sources will mean increased demand for devices optimal for energy storing.
Chemical data mining boosts search for new organic semiconductors
Thu, 14 Feb 2019 11:55:43 EST
Organic semiconductors are lightweight, flexible and easy to manufacture. But they often fail to meet expectations regarding efficiency and stability. Researchers are now deploying data mining approaches to identify promising organic compounds for the electronics of the future.
High-speed surveillance in solar cells catches recombination red-handed
Thu, 14 Feb 2019 09:34:07 EST
Using synchronized lasers pulses, researchers developed a new method of electrostatic force microscopy that can record movies with frames as fast as 300 nanoseconds. This is fast enough to watch electrons move inside solar cells, which can lead to more efficient solar power devices.