A magnetoelectric material for converting the Earth's magnetic field into electricity has been developed at the National Research University "Moscow Institute of Electronic Technology" (NRU MIET). This was reported by the university's press service.
The material has the property of converting the energy of the Earth's magnetic field into electricity. The voltage generated in it is 2.2 mV, which is sufficient for transmitting information in modern personal computers (2–2.5 mV).
The efficiency of converting a magnetic field into an electric current is expressed by the so-called magnetoelectric effect; in our material, it is 110 mV/A. This value is at the level of the most modern magnetoelectric composite materials based on ceramics.
The main problem with magnetoelectric materials is the inflexible, brittle substrate. The new material surpasses its analogues. It has become flexible due to the creation of a new substrate made of polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE). This polymer is resistant to chemical and mechanical stress.
Recent studies have shown that PVDF-TrFE is characterized by high values of the piezoelectric modulus, which allows it to be used as an effective piezoelectric component of a magnetoelectric composite. This means that when mechanical pressure is applied, this material acquires an electrical voltage.
PVDF-TrFE has made the new magnetoelectric material biocompatible. Thanks to this, it can be used in the production of smart implants.
Earlier, www1.ru reported that a giant solar power plant was created in Yekaterinburg.
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