Polymorphism of dioctyl-terthiophene within thin films: the role of the first monolayer
Polymorphism of dioctyl-terthiophene within thin films: the role of the first monolayer
The origins of specific polymorphic phases within thin films are still not well understood. The polymorphism of the molecule dioctyl-terthiophene is investigated during the presence of a silicon-oxide surface during the crystallisation process. It is found that a monolayer of molecules forms two-dimensional crystals on the surface. In the case of thicker films crystalline islands are formed, A comparison of the three polymorphic phases observed within thin films and the thermodynamically more stable single crystal phases reveals distinct differences which can be related to an adaption of the molecular packing with the flat surface of the substrate.
molecular crystals, surface induced phases, thin film morphology
1-19
Lercher, Christoph
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Röthel, Christian
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Roscioni, Otello Maria
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Geerts, Yves Henry
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Shen, Quan
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Teichert, Christian
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Fischer, Roland
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Leising, Günther
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Sferrazza, Michele
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Gbabode, Gabin
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Resel, Roland
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Lercher, Christoph
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Röthel, Christian
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Roscioni, Otello Maria
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Geerts, Yves Henry
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Shen, Quan
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Teichert, Christian
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Fischer, Roland
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Leising, Günther
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Sferrazza, Michele
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Gbabode, Gabin
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Resel, Roland
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Lercher, Christoph, Röthel, Christian, Roscioni, Otello Maria, Geerts, Yves Henry, Shen, Quan, Teichert, Christian, Fischer, Roland, Leising, Günther, Sferrazza, Michele, Gbabode, Gabin and Resel, Roland
(2015)
Polymorphism of dioctyl-terthiophene within thin films: the role of the first monolayer.
Chemical Physics Letters, .
(doi:10.1016/j.cplett.2015.04.027).
Abstract
The origins of specific polymorphic phases within thin films are still not well understood. The polymorphism of the molecule dioctyl-terthiophene is investigated during the presence of a silicon-oxide surface during the crystallisation process. It is found that a monolayer of molecules forms two-dimensional crystals on the surface. In the case of thicker films crystalline islands are formed, A comparison of the three polymorphic phases observed within thin films and the thermodynamically more stable single crystal phases reveals distinct differences which can be related to an adaption of the molecular packing with the flat surface of the substrate.
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Lercher_Polymorphism.pdf
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More information
Accepted/In Press date: 20 April 2015
e-pub ahead of print date: 24 April 2015
Keywords:
molecular crystals, surface induced phases, thin film morphology
Organisations:
Chemistry
Identifiers
Local EPrints ID: 376903
URI: http://eprints.soton.ac.uk/id/eprint/376903
ISSN: 0009-2614
PURE UUID: 259543fe-f6f5-47e8-9f09-82f920b69833
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Date deposited: 13 May 2015 08:56
Last modified: 15 Mar 2024 05:16
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Contributors
Author:
Christoph Lercher
Author:
Christian Röthel
Author:
Otello Maria Roscioni
Author:
Yves Henry Geerts
Author:
Quan Shen
Author:
Christian Teichert
Author:
Roland Fischer
Author:
Günther Leising
Author:
Michele Sferrazza
Author:
Gabin Gbabode
Author:
Roland Resel
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