Solar Energy News -- ScienceDaily
Can we get 100 percent of our energy from renewable sources?
Thu, 17 May 2018 11:38:12 EDT
Some researchers doubted the feasibility of many of the recent scenarios for high shares of renewable energy. Now scientists have hit back with their response to the points raised. They demonstrate that there are no roadblocks on the way to a 100 percent renewable future.
New research could improve efficiency and luminance of TV and smartphone displays
Wed, 16 May 2018 12:36:58 EDT
Your TV and smartphone could be more efficient and luminescent thanks to new research.
The first wireless flying robotic insect takes off
Tue, 15 May 2018 14:25:16 EDT
Engineers have created RoboFly, the first wireless flying robotic insect. RoboFly is slightly heavier than a toothpick and is powered by a laser beam.
Symmetry is essential for power network synchronization
Tue, 08 May 2018 09:49:58 EDT
Scientists have clarified the fundamental principles for achieving the synchronization of power generator groups in power networks, which is essential for the stable supply of electric power. Based on this principle, the team developed a method for constructing an aggregated model of a power network that can efficiently analyze and control the behavior of generator groups (including rotor phase angles and connection point voltages) with complex connection to a power grid.
Novel approach for photosynthetic production of carbon neutral biofuel from green algae
Thu, 03 May 2018 14:27:27 EDT
Reducing carbon emissions in order to prevent climate change requires developing new technologies for sustainable and renewable biofuel production. Molecular hydrogen is regarded as one of the most promising energy carriers due to its high energy density and clean, carbon-free use. A research group has discovered an efficient way for transforming solar energy into the chemical energy of biohydrogen through the photosynthesis of green algae that function as cell factories.
Engineers upgrade ancient, sun-powered tech to purify water with near-perfect efficiency
Thu, 03 May 2018 14:26:39 EDT
The idea of using energy from the sun to evaporate and purify water is ancient. The Greek philosopher Aristotle reportedly described such a process more than 2,000 years ago. Now, researchers are bringing this technology into the modern age, using it to sanitize water at what they report to be record-breaking rates.
Harvesting clean hydrogen fuel through artificial photosynthesis
Thu, 03 May 2018 14:26:32 EDT
A new, stable artificial photosynthesis device doubles the efficiency of harnessing sunlight to break apart both fresh and salt water, generating hydrogen that can then be used in fuel cells.
Engineers invent smart microchip that can self-start and operate when battery runs out
Thu, 03 May 2018 10:17:39 EDT
BATLESS, a smart microchip, can self-start and continue to operate even when the battery runs out of energy. This novel technology could enable smaller and cheaper Internet of Things (IoT) devices.
How to assess new solar technologies
Mon, 30 Apr 2018 13:18:17 EDT
Researchers find that combining two types of solar cells into one, called tandem photovoltaic cells, can provide more efficient home solar installations.
Bright future for solar cell technology
Fri, 27 Apr 2018 10:02:50 EDT
New all-inorganic perovskite solar cells tackle three key challenges in solar cell technology: efficiency, stability, and cost.
New ray of hope for solar fuel
Fri, 27 Apr 2018 10:02:40 EDT
The quest to develop the 'Holy Grail' of affordable, viable and environmentally-friendly fuels using sunlight has taken an exciting new twist.
World's smallest optical implantable biodevice
Wed, 25 Apr 2018 16:20:34 EDT
Researchers have built a new optical device no bigger than the edge of a coin. The device includes a photovoltaic cell that is powered by infrared light and emits blue light. Using infrared light allows the device to be implanted several centimeters deep into the body, while the emission of blue light can be used for optogenetic control of brain patterns.
Balancing nuclear and renewable energy
Wed, 25 Apr 2018 16:20:20 EDT
Researchers explore the benefits of adjusting the output of nuclear power plants according to the changing supply of renewable energy such as wind and solar power.
Neutrons provide insights into increased performance for hybrid perovskite solar cells
Mon, 23 Apr 2018 12:50:44 EDT
Neutron scattering has revealed, in real time, the fundamental mechanisms behind the conversion of sunlight into energy in hybrid perovskite materials. A better understanding of this behavior will enable manufacturers to design solar cells with significantly increased efficiency.
Organic solar cells reach record efficiency, benchmark for commercialization
Mon, 23 Apr 2018 11:08:13 EDT
In an advance that makes a more flexible, inexpensive type of solar cell commercially viable, researchers have demonstrated organic solar cells that can achieve 15 percent efficiency.
Squeezing more power out of solar cells
Thu, 19 Apr 2018 14:14:09 EDT
Physicists have published new research that could literally squeeze more power out of solar cells by physically deforming each of the crystals in the semiconductors used by photovoltaic cells.
Energy conversion: Optical 'overtones' for solar cells
Thu, 19 Apr 2018 13:00:51 EDT
Scientists have found a new effect regarding the optical excitation of charge carriers in a solar semiconductor. It could facilitate the utilization of infrared light, which is normally lost in solar devices.
Nanoscale coating enables solar cells to absorb 20 percent more sunlight
Fri, 13 Apr 2018 13:36:42 EDT
Trapping light with an optical version of a whispering gallery, researchers have developed a nanoscale coating for solar cells that enables them to absorb about 20 percent more sunlight than uncoated devices.
Diamond-based circuits can take the heat for advanced applications
Tue, 10 Apr 2018 11:09:09 EDT
When power generators transfer electricity, they lose almost 10 percent of the generated power. To address this, scientists are researching new diamond semiconductor circuits to make power conversion systems more efficient. Researchers have now successfully fabricated a key circuit in power conversion systems using hydrogenated diamond. These circuits can be used in diamond-based electronic devices that are smaller, lighter and more efficient than silicon-based devices.
High efficiency solar power conversion allowed by a novel composite material
Mon, 09 Apr 2018 14:47:28 EDT
A composite thin film made of two different inorganic oxide materials significantly improves the performance of solar cells. Researchers have developed this material which combines two crystal phases comprising the atomic elements bismuth, manganese, and oxygen. The combination of phases optimizes this material's ability to absorb solar radiation and transform it into electricity. The results are highly promising for the development of future solar technologies, and also potentially useful in other optoelectronic devices.