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Orthogonal PbS Nanowire Arrays and Networks and Their Raman Scattering Behavior

机译:正交PbS纳米线阵列和网络及其拉曼散射行为

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摘要

Three-dimensional,orthogonal lead sulfide (PbS) nanowire arrays and networks have been prepared by using a simple,atmospheric pressure chemical vapor deposition (APCVD) method.These uniform nanowires (average diameter 30 nm) grow epitax-ially from the surface of the initial PbS crystal seeds and form orthogonal arrays and networks in space.The growth mechanism has been explored,and the process was classified as homogeneous,epitaxial growth in the <200> directions.Furthermore,Raman spectra of PbS nanowires are reported here,and their characteristic Raman peak (190 cm~(-1),no shoulder) could be used as a unique probe for the study of PbS nanomaterials.
机译:已通过简单的大气压化学气相沉积(APCVD)方法制备了三维正交硫化铅(PbS)纳米线阵列和网络。这些均匀的纳米线(平均直径30 nm)从外表面外延生长。研究了PbS纳米线的初始晶种,并在空间中形成正交的阵列和网络。研究了其生长机理,并将其分类为均匀,沿<200>方向外延生长。具有特征性的拉曼峰(190 cm〜(-1),无肩峰)可以作为研究PbS纳米材料的独特探针。

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