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Structure of pentacene thin films
Authors
,
RL Headrick
+8 more
Z Islam
A Kazimirov
H Kim
GG Malliaras
AC Mayer
B Nickel
R Ruiz
G Scoles
Publication date
1 November 2004
Publisher
Abstract
Grazing incidence x-ray diffraction, x-ray reflectivity and atomic force microscopy have been performed to study the structure of pentacene thin films on oxidized Si substrates from submonolayer to multilayer coverages. The volume of the unit cell in the thin film phase is almost identical to that of the bulk phase, thus the molecular packing efficiency is effectively the same in both phases. The structure forming from the first monolayer remains the same for films at least 190 Å thick. The in-plane structure of the submonolayer islands also remains unchanged within a substrate temperature range of 0< Tsub <45 °C while the island size changes by more than a factor of 4. © 2004 American Institute of Physics
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CUED - Cambridge University Engineering Department
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Last time updated on 15/07/2020