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[交流] 【请教】高分子PCL晶体的高分辨TEM解析

各位虫友,最近我研究PCL的结晶,得到了一种纳米级的PCL晶体,并通过高分辨TEM观察到明显的衍射条纹,FFT后得到衍射斑点(见附件左图),我想知道此斑点属于哪个晶带轴。我是晶体方面的新手,所以不知道该如何解析。通过查阅文献,我看到有别人做的PCL晶体的选取电子衍射斑点(右图)与我的极其相似,我测量并计算了以下R1/R3 、R1/R2和角度a, 两个图基本吻合。在文献中,其原文写道“they(右图)indicate the presence of flat-on lamellae since all the diffraction spots correspond to the (hk0) projection of the reciprocal lattice of the structure of PCL; therefore, the PCL chains are oriented normal to the substrate surface.”。我想请问的是,如果两图的R1/R3  、R1/R2和角度a都具有类似的值,我是不是就能确定左图的衍射斑点也是来自(hk0)晶面族呢?


[ Last edited by nash603 on 2011-3-23 at 21:19 ]
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