Epitaxially Grown Ferroelectric PVDF-TrFE Film on Shape-Tailored Semiconducting Rubrene Single Crystal

Yujeong Lee, Kang Lib Kim, Han Sol Kang, Beomjin Jeong, Chanho Park, Insung Bae, Seok Ju Kang, Youn Jung Park, Cheolmin Park

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Epitaxial crystallization of thin poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) films is important for the full utilization of their ferroelectric properties. Epitaxy can offer a route for maximizing the degree of crystallinity with the effective orientation of the crystals with respect to the electric field. Despite various approaches for the epitaxial control of the crystalline structure of PVDF-TrFE, its epitaxy on a semiconductor is yet to be accomplished. Herein, the epitaxial growth of PVDF-TrFE crystals on a single-crystalline organic semiconductor rubrene grown via physical vapor deposition is presented. The epitaxy results in polymer crystals globally ordered with specific crystal orientations dictated by the epitaxial relation between the polymer and rubrene crystal. The lattice matching between the c-axis of PVDF-TrFE crystals and the (210) plane of orthorhombic rubrene crystals develops two degenerate crystal orientations of the PVDF-TrFE crystalline lamellae aligned nearly perpendicular to each other. Thin PVDF-TrFE films with epitaxially grown crystals are incorporated into metal/ferroelectric polymer/metal and metal/ferroelectric polymer/semiconductor/metal capacitors, which exhibit excellent nonvolatile polarization and capacitance behavior, respectively. Furthermore, combined with a printing technique for micropatterning rubrene single crystals, the epitaxy of a PVDF-TrFE film is formed selectively on the patterned rubrene with characteristic epitaxial crystal orientation over a large area.

Original languageEnglish
Article number1704024
JournalSmall
Volume14
Issue number22
DOIs
Publication statusPublished - 2018 May 29

Fingerprint

Ferroelectric materials
Single crystals
Epitaxial growth
Crystals
Crystal orientation
Semiconductors
Polymers
Metals
Crystalline materials
Semiconductor materials
Printing
Semiconducting organic compounds
Physical vapor deposition
Crystallization
trifluoroethene
rubrene
polyvinylidene fluoride
Crystal lattices
Capacitors
Capacitance

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

Cite this

Lee, Yujeong ; Kim, Kang Lib ; Kang, Han Sol ; Jeong, Beomjin ; Park, Chanho ; Bae, Insung ; Kang, Seok Ju ; Park, Youn Jung ; Park, Cheolmin. / Epitaxially Grown Ferroelectric PVDF-TrFE Film on Shape-Tailored Semiconducting Rubrene Single Crystal. In: Small. 2018 ; Vol. 14, No. 22.
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abstract = "Epitaxial crystallization of thin poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) films is important for the full utilization of their ferroelectric properties. Epitaxy can offer a route for maximizing the degree of crystallinity with the effective orientation of the crystals with respect to the electric field. Despite various approaches for the epitaxial control of the crystalline structure of PVDF-TrFE, its epitaxy on a semiconductor is yet to be accomplished. Herein, the epitaxial growth of PVDF-TrFE crystals on a single-crystalline organic semiconductor rubrene grown via physical vapor deposition is presented. The epitaxy results in polymer crystals globally ordered with specific crystal orientations dictated by the epitaxial relation between the polymer and rubrene crystal. The lattice matching between the c-axis of PVDF-TrFE crystals and the (210) plane of orthorhombic rubrene crystals develops two degenerate crystal orientations of the PVDF-TrFE crystalline lamellae aligned nearly perpendicular to each other. Thin PVDF-TrFE films with epitaxially grown crystals are incorporated into metal/ferroelectric polymer/metal and metal/ferroelectric polymer/semiconductor/metal capacitors, which exhibit excellent nonvolatile polarization and capacitance behavior, respectively. Furthermore, combined with a printing technique for micropatterning rubrene single crystals, the epitaxy of a PVDF-TrFE film is formed selectively on the patterned rubrene with characteristic epitaxial crystal orientation over a large area.",
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Lee, Y, Kim, KL, Kang, HS, Jeong, B, Park, C, Bae, I, Kang, SJ, Park, YJ & Park, C 2018, 'Epitaxially Grown Ferroelectric PVDF-TrFE Film on Shape-Tailored Semiconducting Rubrene Single Crystal', Small, vol. 14, no. 22, 1704024. https://doi.org/10.1002/smll.201704024

Epitaxially Grown Ferroelectric PVDF-TrFE Film on Shape-Tailored Semiconducting Rubrene Single Crystal. / Lee, Yujeong; Kim, Kang Lib; Kang, Han Sol; Jeong, Beomjin; Park, Chanho; Bae, Insung; Kang, Seok Ju; Park, Youn Jung; Park, Cheolmin.

In: Small, Vol. 14, No. 22, 1704024, 29.05.2018.

Research output: Contribution to journalArticle

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