Capillary effects in guided crystallization of organic thin films

Alta Fang; Anna K. Hailey; Abigail Grosskopf; John E. Anthony; Yueh Lin Loo; Mikko Haataja

doi:10.1063/1.4915537

Capillary effects in guided crystallization of organic thin films

Alta Fang, Anna K. Hailey, Abigail Grosskopf, John E. Anthony, Yueh Lin Loo, Mikko Haataja

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Recently, it has been demonstrated that solvent-vapor-induced crystallization of triethylsilylethynyl anthradithiophene (TES ADT) thin films can be directed on millimeter length scales along arbitrary paths by controlling local crystal growth rates via pre-patterning the substrate. Here, we study the influence of capillary effects on crystallization along such channels. We first derive an analytical expression for the steady-state growth front velocity as a function of channel width and validate it with numerical simulations. Then, using data from TES ADT guided crystallization experiments, we extract a characteristic channel width, which provides the smallest feature size that can be obtained by this technique.

Original language	English
Article number	036107
Journal	APL Materials
Volume	3
Issue number	3
DOIs	https://doi.org/10.1063/1.4915537
State	Published - Mar 1 2015

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Publisher Copyright:
© 2015 Author(s).

ASJC Scopus subject areas

Materials Science (all)
Engineering (all)

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abstract = "Recently, it has been demonstrated that solvent-vapor-induced crystallization of triethylsilylethynyl anthradithiophene (TES ADT) thin films can be directed on millimeter length scales along arbitrary paths by controlling local crystal growth rates via pre-patterning the substrate. Here, we study the influence of capillary effects on crystallization along such channels. We first derive an analytical expression for the steady-state growth front velocity as a function of channel width and validate it with numerical simulations. Then, using data from TES ADT guided crystallization experiments, we extract a characteristic channel width, which provides the smallest feature size that can be obtained by this technique.",

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AU - Fang, Alta

AU - Hailey, Anna K.

AU - Grosskopf, Abigail

AU - Anthony, John E.

AU - Loo, Yueh Lin

AU - Haataja, Mikko

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Recently, it has been demonstrated that solvent-vapor-induced crystallization of triethylsilylethynyl anthradithiophene (TES ADT) thin films can be directed on millimeter length scales along arbitrary paths by controlling local crystal growth rates via pre-patterning the substrate. Here, we study the influence of capillary effects on crystallization along such channels. We first derive an analytical expression for the steady-state growth front velocity as a function of channel width and validate it with numerical simulations. Then, using data from TES ADT guided crystallization experiments, we extract a characteristic channel width, which provides the smallest feature size that can be obtained by this technique.

AB - Recently, it has been demonstrated that solvent-vapor-induced crystallization of triethylsilylethynyl anthradithiophene (TES ADT) thin films can be directed on millimeter length scales along arbitrary paths by controlling local crystal growth rates via pre-patterning the substrate. Here, we study the influence of capillary effects on crystallization along such channels. We first derive an analytical expression for the steady-state growth front velocity as a function of channel width and validate it with numerical simulations. Then, using data from TES ADT guided crystallization experiments, we extract a characteristic channel width, which provides the smallest feature size that can be obtained by this technique.

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Capillary effects in guided crystallization of organic thin films

Abstract

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