Growth anomalies in supramolecular networks: 4,4'-biphenyldicarboxylic acid on Cu(001)

Daniel Schwarz, Raoul van Gastel, Henricus J.W. Zandvliet, Bene Poelsema

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Abstract

We have used low energy electron microscopy to demonstrate how the interaction of 4,4 ′ -biphenyldicarboxylic acid (BDA) molecules with (steps on) the Cu(001) surface determines the structure of supramolecular BDA networks on a mesoscopic length scale. Our in situ real time observations reveal that steps are permeable to individual molecules but that the change in crystal registry between different layers of the Cu substrate causes them to be completely impermeable to condensed BDA domains. The resulting growth instabilities determine the evolution of the domain shape and include a novel Mullins-Sekerka-type growth instability that is characterized by high growth rates along, instead of perpendicular to, the Cu steps. This growth instability is responsible for the majority of residual defects in the BDA networks.
Original languageEnglish
Article number076101
Number of pages5
JournalPhysical review letters
Volume110
Issue number7
DOIs
Publication statusPublished - 2013

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anomalies
acids
molecules
electron microscopy
causes
defects
crystals
interactions
energy

Keywords

  • IR-89926
  • METIS-296589

Cite this

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title = "Growth anomalies in supramolecular networks: 4,4'-biphenyldicarboxylic acid on Cu(001)",
abstract = "We have used low energy electron microscopy to demonstrate how the interaction of 4,4 ′ -biphenyldicarboxylic acid (BDA) molecules with (steps on) the Cu(001) surface determines the structure of supramolecular BDA networks on a mesoscopic length scale. Our in situ real time observations reveal that steps are permeable to individual molecules but that the change in crystal registry between different layers of the Cu substrate causes them to be completely impermeable to condensed BDA domains. The resulting growth instabilities determine the evolution of the domain shape and include a novel Mullins-Sekerka-type growth instability that is characterized by high growth rates along, instead of perpendicular to, the Cu steps. This growth instability is responsible for the majority of residual defects in the BDA networks.",
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Growth anomalies in supramolecular networks: 4,4'-biphenyldicarboxylic acid on Cu(001). / Schwarz, Daniel; van Gastel, Raoul; Zandvliet, Henricus J.W.; Poelsema, Bene.

In: Physical review letters, Vol. 110, No. 7, 076101, 2013.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Growth anomalies in supramolecular networks: 4,4'-biphenyldicarboxylic acid on Cu(001)

AU - Schwarz, Daniel

AU - van Gastel, Raoul

AU - Zandvliet, Henricus J.W.

AU - Poelsema, Bene

PY - 2013

Y1 - 2013

N2 - We have used low energy electron microscopy to demonstrate how the interaction of 4,4 ′ -biphenyldicarboxylic acid (BDA) molecules with (steps on) the Cu(001) surface determines the structure of supramolecular BDA networks on a mesoscopic length scale. Our in situ real time observations reveal that steps are permeable to individual molecules but that the change in crystal registry between different layers of the Cu substrate causes them to be completely impermeable to condensed BDA domains. The resulting growth instabilities determine the evolution of the domain shape and include a novel Mullins-Sekerka-type growth instability that is characterized by high growth rates along, instead of perpendicular to, the Cu steps. This growth instability is responsible for the majority of residual defects in the BDA networks.

AB - We have used low energy electron microscopy to demonstrate how the interaction of 4,4 ′ -biphenyldicarboxylic acid (BDA) molecules with (steps on) the Cu(001) surface determines the structure of supramolecular BDA networks on a mesoscopic length scale. Our in situ real time observations reveal that steps are permeable to individual molecules but that the change in crystal registry between different layers of the Cu substrate causes them to be completely impermeable to condensed BDA domains. The resulting growth instabilities determine the evolution of the domain shape and include a novel Mullins-Sekerka-type growth instability that is characterized by high growth rates along, instead of perpendicular to, the Cu steps. This growth instability is responsible for the majority of residual defects in the BDA networks.

KW - IR-89926

KW - METIS-296589

U2 - 10.1103/PhysRevLett.110.076101

DO - 10.1103/PhysRevLett.110.076101

M3 - Article

VL - 110

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 7

M1 - 076101

ER -