TY  - JOUR
AU  - Wagner, Christian
AU  - Forker, Roman
AU  - Fritz, Torsten
TI  - On the Origin of the Energy Gain in Epitaxial Growth of Molecular Films
JO  - The journal of physical chemistry letters
VL  - 3
IS  - 3
SN  - 1948-7185
CY  - Washington, DC
PB  - ACS
M1  - FZJ-2015-03341
SP  - 419 - 424
PY  - 2012
AB  - The material properties of organic thin films depend strongly on their order. The different types of epitaxy may complicate the exploration of the large variety of ordered systems and its exploitation in potential electronic devices. In this Letter, we develop a coherent description of the driving force that creates epitaxial systems. We focus on flat-lying organic adsorbates and explain the energy gain in commensurate, point-on-line, and line-on-line epitaxy. We use potential energy maps to visualize our concept and to derive a relation that allows anticipating epitaxial growth from low-energy electron diffraction (LEED) data. A unified description facilitates the identification and interpretation of experimentally observed adsorbate structures, whereas the rationalized expectation from LEED means a considerable speed gain if suitable candidates for organic–organic epitaxy are searched for in a combinatory approach.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000299860200025
DO  - DOI:10.1021/jz2015605
UR  - https://juser.fz-juelich.de/record/201031
ER  -