Communication

Observation of Unusual Homoepitaxy in Ultrathin Pentacene Films and Correlation with Surface Electrostatic Potential

  1. Vivek Kalihari1,
  2. David J. Ellison1,
  3. Greg Haugstad2,
  4. C. Daniel Frisbie1,*

Article first published online: 22 APR 2009

DOI: 10.1002/adma.200900362

Issue

Advanced Materials

Advanced Materials

Volume 21, Issue 30, pages 3092–3098, August 14, 2009

Additional Information

How to Cite

Kalihari, V., Ellison, D. J., Haugstad, G. and Frisbie, C. D. (2009), Observation of Unusual Homoepitaxy in Ultrathin Pentacene Films and Correlation with Surface Electrostatic Potential. Advanced Materials, 21: 3092–3098. doi: 10.1002/adma.200900362

Author Information

  1. 1

    Department of Chemical Engineering and Materials Science University of Minnesota 151 Amundson Hall, 421 Washington Avenue SE Minneapolis, MN 55455 (USA)

  2. 2

    Characterization Facility University of Minnesota Shepherd Labs, 100 Union St SE Minneapolis, MN 55455 (USA)

*Department of Chemical Engineering and Materials Science University of Minnesota 151 Amundson Hall, 421 Washington Avenue SE Minneapolis, MN 55455 (USA).

Publication History

  1. Issue published online: 12 AUG 2009
  2. Article first published online: 22 APR 2009
  3. Manuscript Revised: 3 MAR 2009
  4. Manuscript Received: 2 FEB 2009

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Keywords:

  • Organic semiconductor films;
  • Organic epitaxy;
  • Atomic force microscopy;
  • Microstructure;
  • Surface electrostatic potential

Graphical Abstract

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Pentacene second layer grows with a twist (∼76 °) on the first layer, while the third and subsequent layers show commensurism with their respective underlayers. The preferred twisting of the second layer on the first layer gives rise to epitaxial and non-epitaxial domains which also reflect in the surface electrostatic potential measurements.

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