Nucleation and growth of thin films of rod-like conjugated molecules

G. Hlawacek, C. Teichert

Research output: Contribution to journalArticleAcademicpeer-review

51 Citations (Scopus)

Abstract

Thin films formed from small molecules are rapidly gaining importance in different technological fields. To explain their growth, methods developed for zero-dimensional atoms as the film-forming particles are applied. However, in organic thin-film growth the dimensionality of the building blocks comes into play. Using the special case of the model molecule para-Sexiphenyl, we will emphasize the challenges that arise from the anisotropic and one-dimensional nature of building blocks. Differences or common features with other rod-like molecules will be discussed. The typical morphologies encountered for this group of molecules and the relevant growth modes will be investigated. Special attention is given to the transition between a flat-lying and upright orientation of the building blocks during nucleation. We will further discuss methods to control the molecular orientation and describe the involved diffusion processes qualitatively and quantitatively.
Original languageEnglish
Article number143202
Pages (from-to)-
Number of pages20
JournalJournal of physics: Condensed matter
Volume25
Issue number14
DOIs
Publication statusPublished - 2013

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Nucleation
rods
nucleation
Thin films
Molecules
thin films
molecules
Molecular orientation
Film growth
Atoms
atoms

Keywords

  • METIS-295659
  • IR-89908

Cite this

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Nucleation and growth of thin films of rod-like conjugated molecules. / Hlawacek, G.; Teichert, C.

In: Journal of physics: Condensed matter, Vol. 25, No. 14, 143202, 2013, p. -.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Nucleation and growth of thin films of rod-like conjugated molecules

AU - Hlawacek, G.

AU - Teichert, C.

PY - 2013

Y1 - 2013

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AB - Thin films formed from small molecules are rapidly gaining importance in different technological fields. To explain their growth, methods developed for zero-dimensional atoms as the film-forming particles are applied. However, in organic thin-film growth the dimensionality of the building blocks comes into play. Using the special case of the model molecule para-Sexiphenyl, we will emphasize the challenges that arise from the anisotropic and one-dimensional nature of building blocks. Differences or common features with other rod-like molecules will be discussed. The typical morphologies encountered for this group of molecules and the relevant growth modes will be investigated. Special attention is given to the transition between a flat-lying and upright orientation of the building blocks during nucleation. We will further discuss methods to control the molecular orientation and describe the involved diffusion processes qualitatively and quantitatively.

KW - METIS-295659

KW - IR-89908

U2 - 10.1088/0953-8984/25/14/143202

DO - 10.1088/0953-8984/25/14/143202

M3 - Article

VL - 25

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JO - Journal of physics: Condensed matter

JF - Journal of physics: Condensed matter

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