zno Archives – The Green Optimistic green tech news, since 2008 Mon, 02 Apr 2012 17:57:43 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Chinese Scientists Find Alternative to Lead-Containing Mainstream Piezoelectric Material https://www.greenoptimistic.com/zinc-oxide-vanadium-piezoelectric-20120402/ https://www.greenoptimistic.com/zinc-oxide-vanadium-piezoelectric-20120402/#respond Mon, 02 Apr 2012 17:57:43 +0000 https://www.greenoptimistic.com/?p=23787 You probably learned in high school what the piezoelectric effect is: a phenomenon where an electromotive force is generated by applying mechanical stress to a material. So far, piezoelectric devices used a material called lead zirconate titanate (PZT). However, PZT is expensive and contains lead, which is bad for the environment. Progress does happen, though, […]

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