Renewable Energy News

Fri, 13 Apr 2018 17:36:42 UTC

Nanoscale coating enables solar cells to absorb 20 percent more sunlight

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. … read more
Wed, 11 Apr 2018 10:02:04 UTC

Innovations Spur Era of Rapidly Declining Solar Costs

In the midst of the dramatic headlines that have accompanied the solar energy sector in recent months, it’s easy to forget about the remarkable progress that the sector has enjoyed in this decade alone. Much of this growth can be attributed to the array of industry-specific innovations that have put substantial downward pressure on solar […]

The post Innovations Spur Era of Rapidly Declining Solar Costs appeared first on Solar Tribune.

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Tue, 10 Apr 2018 15:09:09 UTC

Diamond-based circuits can take the heat for advanced applications

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. … read more
Tue, 10 Apr 2018 12:42:30 UTC

Silent marine robots record sounds underwater

Silent marine robots that record sounds underwater are allowing researchers to listen to the oceans as never before. While pilot whales make whistles, buzzes and clicks, pods of hunting dolphins create high-pitched echolocation clicks and larger species such as sperm whales make louder, slower clicks. As well as eavesdropping on marine life, the recordings can be used to measure sea-surface wind speed and monitor storms. The research will be presented at the General Assembly of the European Geosciences Union, more
Mon, 09 Apr 2018 18:47:28 UTC

High efficiency solar power conversion allowed by a novel composite material

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. … read more
Thu, 05 Apr 2018 19:55:34 UTC

Light 'relaxes' crystal to boost solar cell efficiency

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. … read more
Thu, 05 Apr 2018 13:58:42 UTC

Double perovskites in environmentally friendly solar cells

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. … read more
Thu, 05 Apr 2018 13:32:47 UTC

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

Solar energy dominated global investment in new power generation like never before in 2017. … read more
Thu, 29 Mar 2018 18:09:57 UTC

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

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. … read more
Wed, 28 Mar 2018 16:01:01 UTC

How holes get trapped in nanoparticles made of zinc oxide

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. … read more
Wed, 28 Mar 2018 15:59:54 UTC

Photosynthesis uses vibrations as 'traffic signals'

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. … read more
Fri, 23 Mar 2018 14:48:08 UTC

20-year-old assumptions in solar cell production refuted

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. … read more
Wed, 21 Mar 2018 18:10:19 UTC

Potassium gives perovskite-based solar cells an efficiency boost

A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity. … read more
Tue, 20 Mar 2018 14:24:02 UTC

Obtaining energy from marine currents

Researchers have developed procedures and designs to obtain energy from marine currents in areas of great depths optimizing the more
Fri, 16 Mar 2018 19:39:06 UTC

Chirping is welcome in birds but not in fusion devices

Birds do it and so do doughnut-shaped fusion facilities called 'tokamaks.' But tokamak chirping -- a rapidly changing frequency wave that can be far above what the human ear can detect -- is hardly welcome to researchers who seek to bring the fusion that powers the sun and stars to more
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