本文采用化学沉积的方法 ,在板状基体上成功的制备纳米晶Co Fe P合金涂层。运用TEM、XRD等分析手段对 [Fe2 + ]对Co Fe P合金成分、结构、性能的影响进行分析研究。结果表明合适工艺参数的调整选择 ,可获得表面光亮致密与基体结合良好的纳米晶Co Fe P化学沉积膜 ,且所得纳米晶Co Fe P合金具有较低的矫顽力和较高的矩形比 。
Superlattice nanowires are expected to show further enhanced thermoelectric performance compared with conventional nanowires or superlattice thin films. We report the epitaxial growth of high density Bi2Te3/Sb superlattice nanowire arrays with a very small bilayer thickness by pulse electrodeposition. Transmission electron microscopy, selected area electron diffraction and high resolution transmission electron microscopy were used to characterize the superlattice nanowires, and Harman technique was employed to measure the figure of merit (ZT) of the superlattice nanowire array in high vacuum condition. The superlattice nanowire arrays exhibit a ZT of 0.15 at 330 K, and a temperature difference of about 6.6 K can be realized across the nanowire arrays.