Nucleation and Growth of Thin Pentacene Films Studied by LEEM and STM
Nucleation and Growth of Thin Pentacene Films Studied by LEEM and STM
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通过 LEEM 和 STM 研究并五苯薄膜的成核和生长
DOI：
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发表时间：
2008
期刊：
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通讯作者：
T. Sakurai
中科院分区：
文献类型：
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作者：
J. Sadowski;A. Al‐Mahboob;Y. Fujikawa;T. Sakurai
讨论了低能电子显微镜（LEEM）在有机并五苯（Pn）薄膜成核和生长的原位实时研究中的应用。证明了衬底表面反应性与Pn膜生长机制之间的关系。我们还讨论了在动力学限制的生长条件下的Pn膜生长的各向异性，这导致优先生长的Pn的方向上的b轴，面内晶胞。我们展示了这种动力学偏好如何显着影响有机膜的结晶度，在H-Si（111）表面上的外延Pn膜的自多晶化的例子。
The application of the low-energy electron microscopy (LEEM) to the in-situ, real-time investigations of the nucleation and growth of organic pentacene (Pn) thin films is discussed. The relation between the substrate surface reactivity and the Pn film growth mechanisms is evidenced. We also discuss the anisotropy in the Pn film growth under kinetically limited growth conditions, which results in preferential growth of Pn in the direction of the b-axis, of the in-plane unit cell. We show how this kinetic preference can dramatically affect the crystallinity of the organic film, on the example of self-polycrystallization in epitaxial Pn films on H-Si(111) surface.