Issue 15, 2005

Growth of crystalline rubrene films with enhanced stability

Abstract

The growth of well-oriented crystalline films of rubrene (C42H28) on SiO2 and Au(111) substrates is achieved by employing “hot wall” deposition whereas organic molecular beam deposition (OMBD) only yields rather amorphous layers or poly-crystalline dendritic networks at elevated temperature. This pronounced difference in film growth is related to the conformational change of rubrene molecules involving a loss of chirality upon crystallization and the enhanced diffusion which becomes possible at high temperature and large vapor pressure. Moreover, it is demonstrated that the crystalline rubrene films reveal an enhanced thermal and chemical stability as compared to the OMBD grown films.

Graphical abstract: Growth of crystalline rubrene films with enhanced stability

Article information

Article type
Communication
Submitted
31 May 2005
Accepted
17 Jun 2005
First published
23 Jun 2005

Phys. Chem. Chem. Phys., 2005,7, 2850-2853

Growth of crystalline rubrene films with enhanced stability

D. Käfer and G. Witte, Phys. Chem. Chem. Phys., 2005, 7, 2850 DOI: 10.1039/B507620J

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