Completely different teams have experimented with completely different piezoelectric materials throughout their nanogenerator exploration. Researchers Michael McAlpine at Princeton College and Prashant Purohit on the College of Pennsylvania have been using lead zirconate titanate, or PZT. Although PZT is extraordinarily brittle, McApline and Purohit discovered easy methods to shape the fabric so it might stretch up to 10 percent with out breaking [source: Berger]. In 1999, Wang became the first researcher utilizing zinc oxide (ZnO) because the piezoelectric material used within the nanogenerators [supply: GeorgiaTech]. In a 2009 publication, Wang’s crew credit using ZnO for his or her continued success in enhancing nanogenerators [supply: Lu, et al.].
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Moore’s remark depended on two essential components: technological advances and the economics of mass manufacturing. For his statement to stay legitimate, we should innovate and discover new methods to create increasingly smaller elements onto a chip. But we also have to make sure the manufacturing process is economically viable, or there will likely be no solution to support additional improvement.