Nagoya University researchers have synthesized the thinnest-ever BaTiO3 nanosheets at 1.8 nm, overcoming the 'size effect' issue and retaining ferroelectric properties. This breakthrough enables the miniaturization of devices and could lead to new properties and applications. Researchers at the I
Creation of the thinnest freestanding film with ferroelectric properties ever opens the door to smaller, more efficient devices. Credit: Dr. Minoru Osadananosheets at 1.8 nm, overcoming the “size effect” issue and retaining ferroelectric properties. This breakthrough enables the miniaturization of devices and could lead to new properties and applications.have successfully synthesized barium titanate nanosheets with a thickness of 1.
However, as the materials used in these devices become smaller, they exhibit unexpected properties that complicate their industrial use. A big problem is the “size effect,” as when the material’s thickness is reduced to a few nanometers, its ferroelectric properties disappear. Now, a team from Nagoya University’s Department of Materials Chemistry and the Institute of Materials and Systems for Sustainability , led by Professor Minoru Osada , has successfully synthesized defect-free BaTiOnanosheets with ferroelectric properties at a thickness of 1.8 nm using an aqueous solution process. The result is the thinnest free-standing film ever made.
“If nanosheets with a thickness of a few nanometers can be synthesized in ferroelectrics, new properties and applications are expected to be discovered. Our findings should provide an important technique for the miniaturization of devices such as memories and capacitors,” he continued. “As existing technologies have already reached their limits both in terms of both materials and processes, techniques such as ours are essential.
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Look up and find Mars beside the thin crescent moon tonightRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter sciencef1rst.
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