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The Lead

Analysis sees many promising pathways for solar photovoltaic power

March 26, 2015 12:07 pm | by David L. Chandler, MIT News Office | News | Comments

In a broad new assessment of the status and prospects of solar photovoltaic technology, Massachusetts Institute of Technology researchers say that it is “one of the few renewable, low-carbon resources with both the scalability and the technological maturity to meet ever-growing global demand for electricity.”

Manufacturing process could yield better solar cells, faster chips

March 25, 2015 10:57 am | by Tom Abate, Stanford Engineering | Videos | Comments

Computer chips, solar cells and other electronic devices have traditionally been based on...

New kind of “tandem” solar cell developed

March 25, 2015 7:41 am | by David L. Chandler, MIT News Office | News | Comments

Researchers at Massachusetts Institute of Technology and Stanford Univ. have developed a new...

A better method for making perovskite solar cells

March 16, 2015 2:33 pm | by Kevin Stacey, Brown Univ. | News | Comments

Research led by a Brown Univ. graduate student has revealed a new way to make light-absorbing...

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Thin film clears path to solar fuels

March 11, 2015 9:39 am | by Ker Than, Caltech | News | Comments

Caltech scientists, inspired by a chemical process found in leaves, have developed an electrically conductive film that could help pave the way for devices capable of harnessing sunlight to split water into hydrogen fuel. When applied to semiconducting materials such as silicon, the nickel oxide film prevents rust buildup and facilitates an important chemical process in the solar-driven production of fuels such as methane or hydrogen.

Just Released A Product At Pittcon? Enter It Into the R&D 100 Awards

March 11, 2015 8:42 am | by Lindsay Hock, Editor | News | Comments

The editors of R&D Magazine have announced an eligibility extension for products to be entered into the 2015 R&D 100 Awards. The 2015 R&D 100 Awards will honor products, technologies and services that have been introduced to the market between January 1, 2014 and March 31, 2015.

New approach combines biomass conversion, solar energy conversion

March 11, 2015 8:21 am | by Libby Dowdall, Univ. of Wisconsin-Madison | News | Comments

In a study published in Nature Chemistry, Univ. of Wisconsin-Madison chemistry Prof. Kyoung-Shin Choi presents a new approach to combine solar energy conversion and biomass conversion, two important research areas for renewable energy. For decades, scientists have been working to harness the energy from sunlight to drive chemical reactions to form fuels such as hydrogen, which provide a way to store solar energy for future use.

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Detection of gamma rays from a newly discovered dwarf galaxy may point to dark matter

March 10, 2015 1:36 pm | by Kevin Stacey, Brown Univ. | News | Comments

Scientists have detected for the first time gamma rays emanating from a dwarf galaxy. Such a detection may be the signal of dark matter particles annihilating, a long-sought prediction of many dark matter theories.        

Research Key to Artificial Photosynthesis, 'Solar Fuels'

March 10, 2015 7:00 am | by Caltech | News | Comments

Scientists, inspired by a chemical process found in leaves, have developed an electrically conductive film that could help pave the way for devices capable of harnessing sunlight to split water into hydrogen fuel. When applied to semiconducting materials such as silicon, the nickel oxide film prevents rust buildup and facilitates an important chemical process in the solar-driven production of fuels.

Solar Plane Sets Out on Historic World Trip

March 9, 2015 8:36 am | by Associated Press, Aya Batrawy | News | Comments

With its wings stretched wide to catch the sun's energy, a Swiss-made solar-powered aircraft took off from Abu Dhabi just after daybreak today in a historic first attempt to fly around the world without a drop of fossil fuel.

Green Wall, Translucent Solar Panels Team Up

March 9, 2015 8:00 am | by Univ. of Cambridge | News | Comments

Green wall technology and semi-transparent solar panels have been combined to generate electrical current from a renewable source of energy both day and night. A prototype “green bus shelter” that could eventually generate enough electricity to light itself, has been built by a collaboration of university researchers and eco-companies.

How to best harness solar power

March 2, 2015 10:48 am | by Dawn Fuller, Univ. of Cincinnati | News | Comments

A research partnership is reporting advances on how to make solar cells stronger, lighter, more flexible and less expensive when compared with the current silicon or germanium technology on the market. The researchers discovered how a blend of conjugated polymers resulted in structural and electronic changes that increased efficiency three-fold, by incorporating graphene in the active layer of the carbon-based materials.

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Supersonic electrons could produce future solar fuel

March 2, 2015 10:38 am | by Lund Univ. | News | Comments

Researchers from institutions including Lund Univ. have taken a step closer to producing solar fuel using artificial photosynthesis. In a new study, they have successfully tracked the electrons' rapid transit through a light-converting molecule. The ultimate aim of the present study is to find a way to make fuel from water using sunlight.

Using “fuzzy logic” to optimize hybrid solar/battery systems

February 26, 2015 11:11 am | by American Institute of Physics | News | Comments

How did fuzzy logic help a group of researchers in Tunisia and Algeria create an ideal photovoltaic system that obeys the supply-and-demand principle and its delicate balance? In the Journal of Renewable & Sustainable Energy, the group describes a new sizing system of a solar array and a battery in a standalone photovoltaic system that is based on fuzzy logic.

Enabling solar cells to use more sunlight

February 25, 2015 9:21 am | by Britta Schlüter, Univ. of Luxembourg | News | Comments

Scientists of the Univ. of Luxembourg and of the Japanese electronics company TDK report progress in photovoltaic research: They have improved a component that will enable solar cells to use more energy of the sun and thus create a higher current. The improvement concerns a conductive oxide film which now has more transparency in the infrared region.

Researchers identify keys to improved polymer solar cells

February 23, 2015 8:38 am | by Bill Kisliuk, Univ. of California, Los Angeles | News | Comments

Paving the way for lighter and more flexible solar devices, Univ. of California, Los Angeles researchers have identified the key principles for developing high-efficiency polymer solar cells. Today’s commercially produced solar panels use silicon cells to efficiently convert sunlight to energy. But silicon panels are too heavy to be used for energy-producing coatings for buildings and cars, or flexible and portable power supplies.

Cheap solar cells made from shrimp shells

February 19, 2015 8:48 am | by Queen Mary, Univ. of London | News | Comments

Researchers have successfully created electricity-generating solar-cells with chemicals found the shells of shrimps and other crustaceans for the first time.

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Limitless Photovoltaic Future

February 13, 2015 12:27 pm | by Tim Studt, Editor-in-Chief | Articles | Comments

Researchers working with photovoltaic (PV) technologies and production processes have made great strides over the past several years, such that PV systems are now considered a viable and cost-competitive energy alternative to traditional fossil fuel energy sources. The number of installations continues to increase, while panel and system costs continue to decline.

A ray of sunshine for bioenergy

February 10, 2015 8:55 am | by Lacey Nygard, Univ. of Minnesota | News | Comments

Even at historically low natural gas prices, bioenergy may not be out of the running: It just may need a little help from the sun. A new study from researchers at the Univ. of Minnesota examining the financial viability of solar-heated biomass gasification technologies that produce a natural gas substitute product concludes that combining these renewable resources can make economic sense.

Why “baking powder” increases efficiency of plastic solar cells

February 6, 2015 12:36 pm | by Barry van der Meer, Eindhoven Univ. of Technology | News | Comments

The efficiency of plastic solar cells can be doubled or tripled if an extra solvent is added during the production process, comparable with the role of baking powder in dough mixture. Exactly how this works has been unclear for the last 10 years. But now researchers at TU/e have come up with the answer in a publication in Nature Communications. This new understanding will now enable focused development of plastic solar cells.

High-efficiency concentrating solar cells move to the rooftop

February 6, 2015 8:23 am | by A'ndrea Elyse Messer, Penn State Univ. | Videos | Comments

Ultra-high-efficiency solar cells similar to those used in space may now be possible on your rooftop thanks to a new microscale solar concentration technology. The falling cost of typical silicon solar cells is making them a smaller and smaller fraction of the overall cost of solar electricity, which also includes "soft" costs like permitting, wiring, installation and maintenance that have remained fixed over time.

Chances of saving with solar energy greater for Indiana farms than homes

February 6, 2015 8:14 am | by Natalie van Hoose, Purdue Univ. | News | Comments

The probability of saving money by using solar energy rather than standard grid electricity is 92% for Indiana farm businesses and about 50% for homes, Purdue Univ. energy economists find. While current energy policies play key roles in providing incentives for the use of solar energy in Indiana, businesses have an additional cost-saving option not available to residences: Businesses can deduct their investment in solar from their revenues.

Pinholes are pitfalls for high-performance solar cells

February 2, 2015 9:42 am | by Kaoru Natori, OIST | News | Comments

The most popular next-generation solar cells under development may have a problem: The top layer is full of tiny pinholes, researchers at the Okinawa Institute of Science and Technology Graduate Univ. in Japan have found. The majority of high-performance solar cells under development use a combination of materials including perovskite and spiro-MeOTAD.

Light-converting materials point to cheaper, more efficient solar power, LEDs

January 30, 2015 7:50 am | by Marit Mitchell, Senior Communications Office, Univ. of Toronto | News | Comments

Engineers are shining new light on an emerging family of solar-absorbing materials that could clear the way for cheaper and more efficient solar panels and LEDs. The materials, called perovskites, are particularly good at absorbing visible light, but had never been studied in their purest form: as perfect single crystals.

New technique for growing high-efficiency perovskite solar cells

January 29, 2015 3:31 pm | by Nancy Ambrosiano, Los Alamos National Laboratory | News | Comments

In Science, Los Alamos National Laboratory researchers reveal a new solution-based hot-casting technique that allows growth of highly efficient and reproducible solar cells from large-area perovskite crystals. The researchers fabricated planar solar cells from pervoskite materials with large crystalline grains that had efficiencies approaching 18%.

New step towards future production of solar fuels

January 26, 2015 9:31 am | by Linda Koffmar, Uppsala Univ. | News | Comments

One way of storing solar energy is to transform the energy directly into a fuel. Researchers at Uppsala Univ. have shown a reaction which makes the process of creating fuel from solar energy more efficient and less energy demanding. Solar energy is abundant. In one hour, the Earth receives as much energy from the sun as humankind uses in a whole year.

Calculating the future of solar-fuel refineries

January 23, 2015 2:01 pm | by Scott Gordon, Univ. of Wisconsin-Madison | News | Comments

A team of Univ. of Wisconsin-Madison engineers has developed a new tool to help plot the future of solar fuels. In a paper recently published in Energy & Environmental Science, a team outlined a tool to help engineers better gauge the overall yield, efficiency and costs associated with scaling solar-fuel production processes up into large-scale refineries.

Technique helps probe performance of organic solar cell materials

January 23, 2015 10:33 am | by Matt Shipman, News Services, North Carolina State Univ. | News | Comments

A research team has developed a new technique for determining the role that a material’s structure has on the efficiency of organic solar cells, which are candidates for low-cost, next-generation solar power. The researchers have used the technique to determine that materials with a highly organized structure at the nanoscale are not more efficient at creating free electrons than poorly organized structures.

New technique for producing cheaper solar energy

January 23, 2015 9:41 am | by Jo Bowler, Univ. of Exeter | News | Comments

A team of experts from the Univ. of Exeter has examined new techniques for generating photovoltaic (PV) energy more cost efficiently. The global PV market has experienced rapid growth in recent years due to renewable energy targets and carbon dioxide emission controls. However, current, widely used commercial methods employed to generate PV energy, such as using silicon or thin-film-based technologies, are still expensive.

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