Nanofilm recycles electronic waste heat as electricity

The team built prototype devices that supplied heat and electric fields to pyroelectric films just 50 to 100 nanometers thick, and measured the temperature and amount of electricity they generated. The devices managed to achieve an energy density of 1.06 Joules per cm3, a power density of 526 W per cm3, and a Carnot efficiency of 19 percent. According to the team, all of these figures are new records for this kind of pyroelectric energy conversion.

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