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New tandem solar cells pave way for better solar

Monday 30 Mar 15 12:00pm

 By COLIN BAILIE.- Maximizing the efficiency of converting sunlight to electricity was the primary goal for much of the history of solar power industry. Because solar cells were so expensive to make, they were used only in special applications, such as on spacecraft, where performance was more important than cost.

That game changed a couple decades ago with the advent of thin-film solar cells that forced the industry to focus on lower costs rather than high performance.

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