Hsieh Chun-Yi, Liu Wei-Hung, Chen Yang-Fang, Shih Wan Y, Gao Xiaotong, Shih Wei-Heng
J Appl Phys. 2012 Nov 15;112(10):104506. doi: 10.1063/1.4766412. Epub 2012 Nov 21.
Converting ambient thermal energy into electricity is of great interest in harvesting energy from the environment. Piezoelectric cantilevers have previously been shown to be an effective biosensor and a tool for elasticity mapping. Here we show that a single piezoelectric (lead-zirconate titanate (PZT)) layer cantilever can be used to convert heat to electricity through pyroelectric effect. Furthermore, piezoelectric-metal (PZT-Ti) bi-layer cantilever showed an enhanced induced voltage over the single PZT layer alone due to the additional piezoelectric effect. This type of device can be a way for converting heat energy into electricity.
将环境热能转化为电能在从环境中获取能量方面具有重大意义。压电悬臂梁此前已被证明是一种有效的生物传感器和弹性映射工具。在此我们展示了单个压电（锆钛酸铅（PZT））层悬臂梁可通过热释电效应将热能转化为电能。此外，由于额外的压电效应，压电 - 金属（PZT - Ti）双层悬臂梁相较于单独的单个PZT层表现出增强的感应电压。这种类型的装置可以成为将热能转化为电能的一种方式。
