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Growth morphology of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) thin films: influence of intermolecular interactions and step-edge barriers
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Yim, S., Kim, K.-Il and Jones, T. S. (Tim S.) (2007) Growth morphology of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) thin films: influence of intermolecular interactions and step-edge barriers. Journal of Physical Chemistry C, Vol.111 (No.29). pp. 10993-10997. doi:10.1021/jp0715272 ISSN 1932-7447.
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Official URL: http://dx.doi.org/10.1021/jp0715272
Abstract
The growth evolution of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) thin films on glass substrates has been studied using atomic force microscopy measurements and scaling analysis. The results are consistent with an upward mound growth mechanism, with the measured scaling exponents indicating anomalous growth behavior. Simulation of one-dimensional surface lateral diffusion models and calculation of the intermolecular interaction energies indicate that the observed growth mode arises from the preference for deposited molecules to attach at the minimum energy position within the same PTCDA layer rather than in a lower layer, based on the existence of high step-edge barriers. The results highlight the important role played by the microscopic molecular properties in determining the macroscopic thin film morphology.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry T Technology T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of Physical Chemistry C | ||||
Publisher: | American Chemical Society | ||||
ISSN: | 1932-7447 | ||||
Official Date: | 26 July 2007 | ||||
Dates: |
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Volume: | Vol.111 | ||||
Number: | No.29 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 10993-10997 | ||||
DOI: | 10.1021/jp0715272 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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