Importance of dewetting in organic molecular-beam deposition:: Pentacene on gold

被引：88

作者：

Beernink, G ^{[1
]}

Strunskus, T ^{[1
]}

Witte, G ^{[1
]}

Wöll, C ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Lehrstuhl Phys Chem 1, D-44780 Bochum, Germany

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 03期

关键词：

D O I：

10.1063/1.1775040

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Organic molecular-beam deposition of pentacene on gold substrates has been investigated using a multitechnique approach. The morphology of the organic thin films depends strongly on the substrate temperature. Pronounced dewetting and island formation are observed at room temperature. Whereas pentacene molecules adopt a planar monolayer structure, they continue to grow in an upright orientation in multilayer films as inferred from x-ray absorption spectroscopy and atomic force microscopy. These results are in pronounced contrast to a recent scanning tunneling microscopy (STM) study by Kang and Zhu [Appl. Phys. Lett. 82, 3248 (2003)] and indicate fundamental problems in the interpretation of STM measurements for organic thin films. (C) 2004 American Institute of Physics.

引用

页码：398 / 400

页数：3

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