Researchers from the McKelvey School of Engineering, Washington University may have overcome the shortcomings of ferroelectric capacitors.
If correct, the team’s discovery could open the door for the widespread adoption of ferroelectric capacitors in many technologies.A group of researchers from the McKelvey School of Engineering at Washington University in St. Louis may have discovered working ferroelectric capacitors. Using a combination of 2D and 3D structures, this discovery could lead to real-world applications of this elusive, promising electrical storage solution.
“We created a new structure based on the innovations we’ve already made in my lab involving 2D materials,” Bae said. “Initially, we weren’t focused on energy storage, but during our exploration of material properties, we found a new physical phenomenon that we realized could be applied to energy storage, and that was both very interesting and potentially much more useful.”
Thanks to this design, Bae and his colleagues have reported an energy density up to 19 times higher than commercially available ferroelectric capacitors. They have also achieved an unprecedented efficiency of over 90%.“We found that dielectric relaxation time can be modulated or induced by a very small gap in the material structure,” Bae explained. “That new physical phenomenon is something we hadn’t seen before.
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