Thermal stability and partial dewetting of crystalline organic thin films: 3,4,9,10-perylenetetracarboxylic dianhydride on Ag„111..
نویسندگان
چکیده
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 Tg &350 K are metastable, while films deposited at Tg*350 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. © 2003 American Institute of Physics. @DOI: 10.1063/1.1589471#
منابع مشابه
Organic semiconducting thin film growth on an organic substrate: 3,4,9,10-perylenetetracarboxylic dianhydride on a monolayer of decanethiol self-assembled on Au„111..
We use surface x-ray diffraction to study the structure of organic-organic heterojunctions grown by organic molecular-beam deposition. In particular, we study films of 3,4,9,10-perylenetetracarboxylic dianhydride ~PTCDA! grown on a decanethiol self-assembled monolayer ~SAM! on a Au~111! surface. The deposition of several ('16) monolayers of PTCDA results in unstrained crystalline films whose ~0...
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