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Thermal stability and partial dewetting of crystalline organic thin films:: 3,4,9,10-perylenetetracarboxylic dianhydride on Ag(111)

被引：70
作者：
Krause, B
Dürr, AC
Schreiber, F
Dosch, H
Seeck, OH
机构：
[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
[2] Forschungszentrum Julich, IFF, D-52425 Julich, Germany
[3] Univ Stuttgart, Inst Theoret & Angew Phys, D-70550 Stuttgart, Germany
来源：
JOURNAL OF CHEMICAL PHYSICS | 2003年 / 119卷 / 06期
关键词：
D O I：
10.1063/1.1589471
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The thermal stability and dewetting effects of crystalline organic thin films on inorganic substrates have been investigated for a model system for organic epitaxy, 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) on Ag(111). The thin films deposited under a variety of growth conditions have been annealed stepwise and studied by in situ x-ray diffraction and noncontact atomic force microscopy. It has been found that comparatively smooth films deposited at temperatures T(g)less than or similar to350 K are metastable, while films deposited at T(g)greater than or similar to350 K are stable against annealing on a time scale of several hours. The thermal expansion of thin PTCDA films and bulk samples has been determined. (C) 2003 American Institute of Physics.
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页码：3429 / 3435
页数：7
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