Scientists unveil first printable, stable perovskite solar cell good for 10K hours

June 12, 2017 by  
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The mineral perovskite has been touted as the next big thing for renewable energy , potentially giving solar cells a 31 percent maximum efficiency – but water-soluble and perovskite solar cells typically don’t last long in the real world. 11 scientists at institutions in Switzerland and Italy may have finally achieved what researchers have been working towards since around 2009: a stable perovskite solar cell. Their solar cells stayed stable in real world conditions for longer than a year. Perovskite solar cells have already been built with an efficiency of more than 22 percent, but that’s in a laboratory. Oxygen and moisture go to work on the cells once they’re outside. But this team led by scientists at Ecole Polytechnique Fédérale de Lausanne drew on a new type of structure in the solar cell to create one the university says is ultra-stable. Related: Austrian scientists create a cheap, flexible solar cell just 3 micrometers thick They designed a hybrid 2D/3D perovskite solar cell. According to ScienceAlert, the 2D perovskite serves as a protective window to guard against moisture, so the 3D perovskite can generate electricity . The solar cells were built up layer by layer – like a sandwich, according to ScienceAlert – by putting different ingredients atop one another. The team built 10 by 10 centimeters squared solar panels , with what the university described as a fully printable industrial-scale process. The hybrid 2D/3D perovskite solar cells are resistant to oxygen and water, while still able to transport electrical charges. They absorb light from the whole visible spectrum, according to the university. The efficiency isn’t great yet – just 11.2 percent. But the university noted that efficiency was constant for over 10,000 hours, with zero loss in performance. Project leader Mohammad Khaja Nazeeruddin told ScienceAlert, “The important finding in this manuscript is identifying the presence of multi-dimensional 2D/3D interface. We believe [this] will trigger many further studies…widening the prospects for perovskite photovoltaics .” The journal Nature Communications published the advance online the beginning of this month. Via ScienceAlert and Ecole Polytechnique Fédérale de Lausanne Images via PublicDomainPictures.net and Ecole Polytechnique Fédérale de Lausanne

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Scientists unveil first printable, stable perovskite solar cell good for 10K hours

Gargantuan lace sea urchins light up the night along Singapore’s marina

June 12, 2017 by  
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A swarm of gigantic, glowing sea urchins recently appeared on Singapore’s waterfront for the iLight Marina Bay Festival. Choi+Shine Architects constructed the larger-than-life creatures as “lacy rooms” that invite visitors to walk inside and enjoy their intricate structure and visual effects. The structures are inspired by sea urchin shells, which are elnclosed yet lightweight and porous. The architects recreated the intricate patterns of urchins using white double-braided polyester chord woven in 20 segments and attached to a metal frame. It took 50 people to assemble the structures by hand over a period of two months. Related: Robots helped build and sew together this amazing sea urchin-inspired pavilion Each sea urchin measures 56 feet in size and weighs around 220 pounds. The lacy pavilions are illuminated by white spot lights, creating the illusion that they glow in the dark. The calming effect and simplicity of the installation visually contrasts Singapore’s skyscrapers and celebrates the city’s cultural diversity. + Choi+Shine Architects Photos © 2016, 2017 Choi+Shine Architects

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Gargantuan lace sea urchins light up the night along Singapore’s marina

Solar-powered drone Skystation sits atop Trump World Tower in New York

April 17, 2017 by  
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Kayak architects  wants to change the way we get around urban environments, so they’ve envisioned an innovative way to integrate air transport with existing urban environments. The project would turn skyscraper rooftops into solar-powered drone stations called Skystations. To illustrate how it would work, the designers put a drone skystation on Trump World Tower in New York City. The Skystation project aims to convert skyscraper rooftops into air transport hubs with a low ecological footprint . This futuristic transportation network should reduce pollution by eliminating rush-hour traffic and decreasing number of land vehicles, enabling us to turn unused roads into walkable, green spaces. Related: Dubai plans to launch autonomous flying drone taxis by mid-2017 Drone robots programmed or operated by humans would build these lightweight structures out of prefabricated and 3d-printed elements, using materials and components produced by local companies. A layer of sprayed Perovskite Solar Cells covers the outer shell, providing clean energy for the entire station. Related: Titan Aerospace Developing World’s First Solar-Powered Atmospheric Satellite Drones Arched roofs are meant to allow easier and more convenient landing for drones, simultaneously creating distinct architecture that dominates the city skyline. An existing art gallery, located underneath the drone platform, is transformed and integrated with the new lobby to give users the opportunity to experience art while waiting for the transport. This space can also function as a restaurant, entertainment area or lounge. Kayak Architects designed the project as a proposal for the Lafarge Holcim Competition. + kayak architects Images by ELEMENT

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Solar-powered drone Skystation sits atop Trump World Tower in New York

Korean researchers develop most efficient solar cell to date

January 13, 2015 by  
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A Korean research team has achieved record level efficiency in solar cells, using a new formula for mixing perovskite structures. Perovskite is an inexpensive, abundant mineral, and the researchers have found ways to make it even more efficient for solar power applications. The new solar cells are measured at 17.9 percent efficiency, which could mean very big things for this clean alternative energy source. Read the rest of Korean researchers develop most efficient solar cell to date Permalink | Add to del.icio.us | digg Post tags: “solar energy” , advancements , alternative energy , Alternative Fuel , best , cheap energy , cheap solar , clean , cleanest , efficiency , korea , Korean , minerals , perovskite , power , records , renewable energy , research , science , scientific , solar , Solar cells , Solar Power , solar technology

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Korean researchers develop most efficient solar cell to date

Scientists Create Cheap, Efficient Spray-On Solar Cells

August 6, 2014 by  
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For the first time, scientists have figured out a way to create efficient, affordable spray-on solar cells. While the concept itself isn’t something new, spray-on technology in the past has been inefficient or costly, so it hasn’t really held any promise for changing the way we make solar panels. But now, using a new material called perovskite,  scientists have created a spray-painting process that could change the solar game. Read the rest of Scientists Create Cheap, Efficient Spray-On Solar Cells Permalink | Add to del.icio.us | digg Post tags: flexible solar panel , perovskite , Perovskite solar , solar cell costs , solar cell efficiency , solar panel technology , solar panels , Solar Power , solar power technology , spray on solar , spray on solar panel , spray on solar technology , spray paint solar , spray solar technology , Spray-On Solar Cell

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Scientists Create Cheap, Efficient Spray-On Solar Cells

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