Piezoelectronics gets green makeover

日期:2019-03-08 06:09:01 作者:凌挝屣 阅读:

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: