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Solar Energy News

World's smallest optical implantable biodevice

Science Daily - Solar Energy - Thu, 04/26/2018 - 03:20
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.
Categories: Solar Energy

Balancing nuclear and renewable energy

Science Daily - Solar Energy - Thu, 04/26/2018 - 03:20
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.
Categories: Solar Energy

Neutrons provide insights into increased performance for hybrid perovskite solar cells

Science Daily - Solar Energy - Mon, 04/23/2018 - 23:50
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.
Categories: Solar Energy

Organic solar cells reach record efficiency, benchmark for commercialization

Science Daily - Solar Energy - Mon, 04/23/2018 - 22:08
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.
Categories: Solar Energy

Squeezing more power out of solar cells

Science Daily - Solar Energy - Fri, 04/20/2018 - 01:14
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.
Categories: Solar Energy

Energy conversion: Optical 'overtones' for solar cells

Science Daily - Solar Energy - Fri, 04/20/2018 - 00:00
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.
Categories: Solar Energy

Nanoscale coating enables solar cells to absorb 20 percent more sunlight

Science Daily - Solar Energy - Sat, 04/14/2018 - 00:36
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.
Categories: Solar Energy

Diamond-based circuits can take the heat for advanced applications

Science Daily - Solar Energy - Tue, 04/10/2018 - 22:09
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.
Categories: Solar Energy

High efficiency solar power conversion allowed by a novel composite material

Science Daily - Solar Energy - Tue, 04/10/2018 - 01:47
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.
Categories: Solar Energy

Light 'relaxes' crystal to boost solar cell efficiency

Science Daily - Solar Energy - Fri, 04/06/2018 - 02:55
Scientists have discovered a novel phenomenon: Light-induced lattice expansion in perovskite materials that cures bulk and interface defects, which leads to an enhancement of the optoelectronic properties.
Categories: Solar Energy

Double perovskites in environmentally friendly solar cells

Science Daily - Solar Energy - Thu, 04/05/2018 - 20:58
A further step has been taken along the road to manufacturing solar cells from lead-free perovskites. High quality films based on double perovskites, which show promising photovoltaic properties, have been developed.
Categories: Solar Energy

Banking on sunshine: World added far more solar than fossil fuel power generating capacity in 2017

Science Daily - Solar Energy - Thu, 04/05/2018 - 20:32
Solar energy dominated global investment in new power generation like never before in 2017.
Categories: Solar Energy

Kesterite solar cells: Germanium promises better opto-electronic properties than tin

Science Daily - Solar Energy - Fri, 03/30/2018 - 01:09
Specific changes in the composition of kesterite-type semiconductors make it possible to improve their suitability as absorber layers in solar cells. As a team has shown, this is particularly true for kesterites in which tin was replaced by germanium. The scientists examined the samples using neutron diffraction at BER II and other methods.
Categories: Solar Energy

How holes get trapped in nanoparticles made of zinc oxide

Science Daily - Solar Energy - Wed, 03/28/2018 - 23:01
Scientists have published a new study that identifies the process by which holes get trapped in nanoparticles made of zinc oxide, a material of potential interest for solar applications because it absorbs ultraviolet light.
Categories: Solar Energy

Photosynthesis uses vibrations as 'traffic signals'

Science Daily - Solar Energy - Wed, 03/28/2018 - 22:59
Researchers have discovered a new role for protein vibrations in controlling the transformation of sunshine into useful energy. The study illuminates a mechanism that could help design better solar materials.
Categories: Solar Energy

20-year-old assumptions in solar cell production refuted

Science Daily - Solar Energy - Fri, 03/23/2018 - 21:48
Researchers have investigated the manufacturing process of solar cells. The researchers proved that assumptions on chemical processes that were commonplace among researchers and producers for the past 20 years are, in fact, inaccurate.
Categories: Solar Energy

Potassium gives perovskite-based solar cells an efficiency boost

Science Daily - Solar Energy - Thu, 03/22/2018 - 01:10
A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity.
Categories: Solar Energy

Monocrystalline silicon thin film for cost-cutting solar cells with 10-times faster growth rate fabricated

Science Daily - Solar Energy - Fri, 03/16/2018 - 21:06
Researchers have successfully produced high-quality thin film monocrystalline silicon with a reduced crystal defect density down to the silicon wafer level at a growth rate that is more than 10 times higher than before. In principle, this method can improve the raw material yield to nearly 100%.
Categories: Solar Energy

Research gets closer to producing revolutionary battery to power renewable energy industry

Science Daily - Solar Energy - Wed, 03/14/2018 - 23:02
New research verges on development of a commercial hydrogen-bromine flow battery, an advanced industrial-scale battery design engineers have strived to develop since the 1960s.
Categories: Solar Energy

Chemists use abundant, low-cost and non-toxic elements to synthesize semiconductors

Science Daily - Solar Energy - Wed, 03/14/2018 - 23:02
Chemists have synthesized a new material for semiconductors. The chemists think the material will work well in solar cells, but without the toxicity, scarcity or costs of other semiconductors.
Categories: Solar Energy

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