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Piezoelectronics gets green makeover

发布时间:2017-10-06 02:01:32来源:未知点击:

More: Read a longer version of this article PIEZOELECTRIC materials generate an electric field when deformed, and vice versa, and are found in everything from cigarette lighters to nanoscale motors. But the best-performing piezo material, lead zirconium titanate (PZT), falls foul of a European Union ban on lead in electronics. Now an alternative has been found that works just as well and has a smaller environmental impact. It comes from Ramamoorthy Ramesh and colleagues at the University of California, Berkeley, who have developed a way to reproduce this behaviour using non-toxic bismuth ferrite (Science, DOI: