Energy & Green Tech

On the road to nontoxic and stable perovskite solar cells

Halide perovskite materials show high efficiency for solar energy technologies, but this comes at a cost: The best perovskite materials incorporate toxic lead, which poses a hazard to the environment. Replacing lead with ...

Energy & Green Tech

Global tensions risk clean energy progress: IEA chief

The head of the International Energy Agency urged the United States and China to set aside their differences and align on climate change, warning in an interview Monday that "geopolitical fractures" risked holding back the ...

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