Degradation and segregation : Thermal stability and highly ordered epitaxial thin films of large aromatic molecules
Degradation and segregation : Thermal stability and highly ordered epitaxial thin films of large aromatic molecules
复制标题
降解和偏析：大芳香族分子的热稳定性和高度有序的外延薄膜
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
T. Fritz
中科院分区：
文献类型：
--
作者：
C. Wagner;R. Franke;T. Dienel;R. Forker;R. Jacob;T. Fritz
作者提出了一个调查的高度有序的外延薄膜的大有机分子，即quaterrylene衍生物。即使原材料四萘嵌苯四羧酸二酰亚胺（QTCDI）在低于其升华温度时开始分解，也可以生长外延单层。通过改进制备方法，还可以制备出QTCDI的主要分解产物--四元萘二羧酸单酰亚胺的高度有序畴。虽然这两种分子具有很强的相似性，但它们以不同的方式生长，受其取代基和分子偶极和四极矩的影响。的结构，其特征在于通过扫描隧道显微镜和，在QTCDI的情况下，低能电子衍射。
The authors present an investigation of highly ordered epitaxial thin films of large organic molecules, namely quaterrylene derivatives. Even though the raw material quaterrylene tetracarboxylic diimide (QTCDI) starts to decompose below its sublimation temperature, epitaxial monolayers could be grown. By modifying the preparation procedure, highly ordered domains of quaterrylene dicarboxylic monoimide, being the main decomposition product of QTCDI, could also be produced. Although both molecules bear strong similarities, they grow in a dissimilar fashion influenced by their substituents and molecular dipole and quadrupole moments. The structures are characterized by scanning tunneling microscopy and, in case of QTCDI, low energy electron diffraction.