Dislocations in molecular crystals

Isabel A. Olson, Alexander G. Shtukenberg, Bart Kahr, Michael D. Ward

Research output: Contribution to journalReview articlepeer-review

Abstract

Dislocations in molecular crystals remain terra incognita. Owing to the complexity of molecular structure, dislocations in molecular crystals can be difficult to understand using only the foundational concepts devised over decades for hard materials. Herein, we review the generation, structure, and physicochemical consequences of dislocations in molecular crystals. Unlike metals, ceramics, and semiconductors, molecular crystals are often characterized by flexible building units of low symmetry, thereby limiting analysis, complicating modeling, and prompting new approaches to elucidate their role in crystallography from growth to mechanics. Such considerations affect applications ranging from plastic electronics and mechanical actuators to the tableting of pharmaceuticals.

Original languageEnglish (US)
Article number096501
JournalReports on Progress in Physics
Volume81
Issue number9
DOIs
StatePublished - Jul 30 2018

Keywords

  • anisotropy
  • core energetics
  • core structure
  • dislocations
  • molecular crystals
  • plasticity
  • simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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