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New Kind of "Tandem" Solar Cell Developed

Test sample of a monolithic perovskite-silicon multijunction solar cell produced by the MIT-Stanford University team. Image: Felice FrankelResearchers combine two types of photovoltaic material to make a cell that harnesses more sunlight.David L....

Posted March 28, 2015    

New Detector Sniffs Out Origins of Methane

Individual cows can produce up to 500 liters of methane a day; the species accounts for about one-third of total methane emissions. The structures shown represent the structure of methane. Photo: Danielle Gruen (edited by Jose-Luis Olivares/MIT)....

Posted March 11, 2015    

Cheap and Flexible Solar

MIT physics graduate student Patrick Brown stands at the controls for a magnetron sputterer deposition chamber, used in the fabrication of charge-transport layers for quantum-dot solar cells. Photo: Denis Paiste/Materials Processing CenterTuning...

Posted March 4, 2015    

Sequestration on Shaky Ground

Christine Daniloff/MITStudy finds a natural impediment to the long-term sequestration of carbon dioxide.Jennifer Chu | MIT News OfficeCarbon sequestration promises to address greenhouse-gas emissions by capturing carbon dioxide from the atmosphere...

Posted January 22, 2015    

Where Does Bioenergy Fit into a Low-Carbon Future?

Miscanthus, a biofuel feedstock cropStudy evaluates the impacts of a large-scale bioenergy ramp-up.Audrey Resutek | MIT Joint Program on the Science and Policy of Global Change Biofuels like ethanol and other forms of bioenergy are often seen as a...

Posted January 20, 2015    

Tonio Buonassisi Seeks to Make Solar Cells Competitive

Tonio Buonassisi, Photo: M. Scott BrauerMechanical engineering professor pursues a vision of a cleaner, more energy-efficient world.David L. Chandler | MIT News Office One day in the 1990s, as he was riding home from high school in São Paulo, Tonio...

Posted January 15, 2015    

Drive-By Heat Mapping

A heat map of a home captured by one of Essess' thermal-imaging cars. Courtesy of EssessStartup’s thermal-imaging cars can quickly track energy leaks in thousands of homes and buildings. Rob Matheson | MIT News Office In 2007, Google unleashed a...

Posted January 9, 2015    

Catalyzing Greener Products

Yuriy Román, Photo: Len RubensteinYuriy Román knew that to change the future of catalysis he’d have to cross the boundary between chemical engineering and materials science. Eric Smalley | MIT Spectrum As a boy growing up in Mexico City, Yuriy Román...

Posted December 3, 2014    

Q&A: Christopher Knittel on the EPA's Greenhouse Gas Plan

Christopher Knittel, Photo: M. Scott BrauerIn Science, economists evaluate government’s proposed emissions policy for power plants. Peter Dizikes | MIT News Office With cap-and-trade legislation on greenhouse-gas emissions having stalled in Congress...

Posted November 18, 2014    

Shedding Light on the Future of Photovoltaics

Photo: iStockMIT study finds unprecedented production of metals needed to meet some solar energy goals.Francesca McCaffrey | MIT Energy Initiative Several government agencies, academic researchers, and firms have proposed scenarios for the future in...

Posted November 13, 2014    

Wind Energy Reaches Greater Heights

Model of a turbine constructed with Keystone Tower System's spiral tapered welding process. Courtesy of Keystone Tower SystemsStartup’s on-site fabrication process makes taller wind turbines more feasible. Rob Matheson | MIT News Office Wind...

Posted November 7, 2014    

Beating Battery Drain

Eta Devices' chip (depicted here) can essentially “switch gears” to adjust voltage supply to power amplifiers in smartphones as needed, cutting power loss to improve battery life. Courtesy of Eta Devices.Startup’s power-conserving chip may increase...

Posted November 1, 2014