Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3046721
Keywords
carbon; monolayers; organic semiconductors; scanning tunnelling microscopy; semiconductor thin films; silver
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Funding
- Department of Commerce through the NIST Small Grants Program and the University of Maryland NSF MRSEC [DMR-05-20471]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0750203] Funding Source: National Science Foundation
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Scanning tunneling microscopy observations of the initial growth stages of the first layer of pentacene on a monolayer film of C-60 on Ag(111) are presented. Pentacene films nucleate and grow with molecules standing up at the pentacene:C-60 interface similar to thin film phases observed on weakly interacting substrates such as SiO2. Unlike reported thin film pentacene phases, those on 1 monolayer C-60/Ag(111) exhibit a striated morphology with domains of 4 nm nominal width. This long range pattern of periodic pentacene displacements relative to the substrate is the response to stress induced in the pentacene film by its interaction with the rigid C-60 support.
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