Engineering

Engineers improve solar cell efficiency, stability

Purdue University researchers have created new, multifunctional ligands that improve the charge transfer, power conversion capability and long-term stability of perovskite solar cells.

Energy & Green Tech

Berlin tech show facing up to era of energy scarcity

From portable solar panels to smart thermostats and "intelligent" radiators, exhibitors at the IFA tech show in Berlin are touting smart solutions for an energy-starved world.

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