Temperature dependence of the 2D-3D transition in the growth of PTCDA on Ag(111): A real-time X-ray and kinetic Monte Carlo study

B. Krause, F. Schreiber, H. Dosch, Alberto Pimpinelli, O. H. Seeck

Research output: Contribution to journalArticle

69 Scopus citations

Abstract

We present a real-time X-ray scattering study of the growth modes in organic molecular-beam epitaxy. We have studied the model system 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) on Ag(111) and find a temperature-dependent transition from layer-by-layer growth to islanding. The transition smears out for low substrate temperatures, T, implying that the degree of the layer-by-layer growth of the wetting layer decreases with decreasing T. This behavior has been analyzed quantitatively and reproduced by kinetic Monte Carlo simulations. The implications and consequences of our findings for the understanding of the organic molecular-beam epitaxy are discussed.

Original languageEnglish (US)
Pages (from-to)372-378
Number of pages7
JournalEurophysics Letters
Volume65
Issue number3
DOIs
StatePublished - Feb 1 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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