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Dependence of mesoscopic growth on molecular configuration in Langmuir-Blodgett multilayers

机译:介观生长对Langmuir-Blodgett多层膜中分子构型的依赖性

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Systematic studies by atomic force microscopy and X-ray reflectivity of three monolayer Langmuir-Blodgett films of M-Stearate (M = Cd, Zn, Mn) show change in surface morphology and growth mode with change in metal ions in the headgroup. Growth proceeds via Volmer Weber mode in CdSt, Stranski-Krastanov mode in ZnSt and Frank Van der Merwe mode in MnSt, as ascertained from fractal dimensions and out-of-plane density profiles. This is closely related with increase in number of metal ions incorporated per headgroup with change in metal ions in the order Cd, Zn and Mn. A preliminary correlation with metal atomic number is noted.
机译:通过原子力显微镜和X射线反射率对M-硬脂酸酯的三个单层Langmuir-Blodgett膜(M = Cd,Zn,Mn)进行的系统研究显示,头组中表面形态和生长方式随金属离子的变化而变化。根据分形维数和面外密度分布图,生长通过CdSt的Volmer Weber模式,ZnSt的Stranski-Krastanov模式和MnSt的Frank Van der Merwe模式进行。这与每个头基掺入的金属离子数量的增加密切相关,金属离子的变化顺序为Cd,Zn和Mn。注意到与金属原子序数的初步相关性。

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