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Fast Nanoscale Movies Shed Light on a Solar Cell Mystery

The perovskite solar cell is a photovoltaic wunderkind. Only a decade old, this next-generation solar technology is already hitting efficiency milestones that took conventional silicon solar cells nearly half a century to achieve. The cells are made from a class of materials called perovskite whose properties enable thin, flexible solar cells that can be printed like ink on the cheap. In principle, perovskite cells could turn everything into a solar panel—your car, your windows, even your clothes. But before perovskite can dethrone silicon as the king of solar semiconductors, researchers…

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From renewables to Netflix: the 15 super-trends that defined the 2010s

It was the decade of austerity, fracking, populism and internet lies. But not everything about the 2010s was terrible The plastics backlash Garbage, including plastic waste, is seen at the beach in Costa del Este, Panama City. Photograph: Luis Acosta/AFP via Getty Images It was once the height of metropolitan chic: the dash into Starbucks for a skinny decaf caramel latte en route for work, the takeaway cup a mark of upward mobility. Those were the days of Sex and the City, when the culture of doing everything on the…

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