New stacked solar cell absorbs energy from almost the entire solar spectrum

July 13, 2017 by  
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Most traditional solar cells aren’t able to convert long-wavelength photons into electricity . A team of researchers led by Matthew Lumb at The George Washington University is hoping to change that in order to capture more power. They’ve designed a solar cell that can harvest just about all of the energy in the solar spectrum – and could become the world’s most efficient solar cell with an efficiency of 44.5 percent. The scientists created a prototype of their solar cell that differs from most others: they stacked multiple solar cells to create a single device that can capture nearly all the solar spectrum’s energy. And as opposed to the solar panels that adorn many rooftops , this new solar cell utilizes concentrator photovoltaic (CPV) panels that concentrate sunlight onto micro-scale cells using lenses. Related: SunPower nabs record for world’s most efficient rooftop solar panel The cell works something like a sieve for sunlight, as each layer absorbs a certain set of wavelengths, to capture nearly half of available energy – most traditional cells only capture around one quarter. Efficiency is one of the main goals of any researcher working on solar cells, and these scientists obtained what could be the highest efficiency in the world using materials based on gallium antimonide (GaSb) substrates. A technique called transfer-printing allows the tiny cells to be constructed with great precision. But this groundbreaking solar cell wasn’t cheap. Still, though the materials utilized were expensive, the scientists think the technique to build the cells is promising to show how efficient a solar cell could be. In the future they think a similar product could hit markets “enabled by cost reductions from very high solar concentration levels and technology to recycle the expensive growth susbtrates.” The journal Advanced Energy Materials published the research this week. 12 scientists from the United States Naval Research Laboratory and other American institutions collaborated with Lumb on the paper. Via Newswise Images via Matthew Lumb and Pixabay

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New stacked solar cell absorbs energy from almost the entire solar spectrum

New ‘Nano Shish Kebab’ Semiconductor Could Lead to Greater Solar Cell Efficiency

February 21, 2013 by  
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Researchers at North Carolina State University just made a nano shish kebab out of germanium sulfide (GeS) crystals – but it’s not for the world’s smallest barbecue. Instead, the first-of-its-kind nano-structure could lead to the development of 3-D solar cells and next-generation sensors, supercapacitors, and photodetectors. Read the rest of New ‘Nano Shish Kebab’ Semiconductor Could Lead to Greater Solar Cell Efficiency Permalink | Add to del.icio.us | digg Post tags: 3d solar cells , first nano-material to consist of 2D and 3D structures with shared crystalline structure , germanium sulfide , ges , molybdenum sulfide , MoS2 , nano shish kebab , nanosheets , nanowire , next-generation sensors , north carolina state university , nucleation sites , photodetectors , solar cell efficiency , solar cell technology , super capacitors , two-dimensional nano-sheets

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New ‘Nano Shish Kebab’ Semiconductor Could Lead to Greater Solar Cell Efficiency

Researchers Create First Solar Cells With Quantum Efficiency of 114%

December 19, 2011 by  
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This morning saw a solar breakthrough at the National Renewable Energy Laboratory (NREL), where researchers created a quantum dot solar device that has a higher energized particle percentage output than its energized particle input. The photocurrent of a solar device — photocurrent shows the efficiency of a solar cell — is expressed as a percentage and is found by measuring the number of electrons flowing per second out of the solar cell divided by the number of photons per second of an energy entering the solar cell. NREL researchers have developed a solar cell that has a photocurrent of 114%, which is the most efficient ratio ever seen before. Read the rest of Researchers Create First Solar Cells With Quantum Efficiency of 114% Permalink | Add to del.icio.us | digg Post tags: Emits More Energy Particles Than it Absorbs , government renewable energy policy , green energy , how efficient are solar cells , National Renewable Energy Laboratory , new solar technology , renewable energy , renewable energy investment , Researchers Create Super Efficient Solar Cell , Solar Cell , solar cell efficiency , solar cell technology , solar energy innovation , solar power innovation , solar power technology , super efficient solar cell , uber solar cell

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Researchers Create First Solar Cells With Quantum Efficiency of 114%

OOIIO Architecture’s German Housing Project Brings Beautiful Greenery to a Former WWII Runway

December 19, 2011 by  
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Madrid-based OOIIO Architecture recently designed a 6-story housing project for Wurzburg, Germany. The colorful complex consists of 15 multi-faceted and sustainable apartment blocks that transform a former WWII runway into a spectacular green space for both residents and the public to enjoy. The buildings were inspired by a famous landscape exhibition in Germany called “ Bundesgartenschau ”, and special gardens cross the entire development. The development will aim to be net-zero and it will utilize green technologies throughout + OOIIO Architecture The article above was submitted to us by an Inhabitat reader. Want to see your story on Inhabitat ? Send us a tip by following this link . Remember to follow our instructions carefully to boost your chances of being chosen for publishing! Permalink | Add to del.icio.us | digg Post tags: Bundesgartenschau , german architecture , german design , german housing porgect , germany , Madrid architects , net zero housing projects , OOIIO Architecture , spanish architecture , sustainable apartments , Wurzburg

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OOIIO Architecture’s German Housing Project Brings Beautiful Greenery to a Former WWII Runway

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