One-step micropatterning of highly-ordered semi-crystalline poly(vinylidene fluoride-co-trifluoroethylene) films by a selective shear and detachment process

Jiyoun Chang, Hee Joon Jung, Huisu Jeong, Youn Jung Park, Jinwoo Sung, Seok Ju Kang, Gun Young Jung, Myung M. Sung, Cheolmin Park

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present a one-step route for micropatterning a thin ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) film with both molecular and microstructural crystal control over a large area. The method is based on the static mechanical shearing and subsequent detachment of a film spin coated on pre-patterned Al which has been lithographically prepared on a SiO2 substrate under appropriate thermal conditions. Selective detachment of the film in contact with the SiO2 substrate gave rise to micropatterns of PVDF-TrFE film positioned only on the Al regions. Further, the PVDF-TrFE film showed 25-nm-thick crystalline lamellae aligned perpendicular to the shear direction, wherein the c axis of the crystals was globally ordered parallel to the shear direction. The sheared and patterned PVDF-TrFE thin films are readily incorporated into non-volatile memory units of metal/ferroelectric/ metal capacitors and bottom gate-top contact field effect transistors, leading to arrays of memory devices with enhanced performance.

Original languageEnglish
Pages (from-to)98-107
Number of pages10
JournalOrganic Electronics
Volume12
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

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vinylidene
detachment
fluorides
shear
Crystalline materials
Ferroelectric materials
Metals
Data storage equipment
Crystals
Substrates
lamella
Field effect transistors
shearing
Shearing
metals
crystals
capacitors
Capacitors
field effect transistors
routes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Chang, Jiyoun ; Jung, Hee Joon ; Jeong, Huisu ; Park, Youn Jung ; Sung, Jinwoo ; Kang, Seok Ju ; Jung, Gun Young ; Sung, Myung M. ; Park, Cheolmin. / One-step micropatterning of highly-ordered semi-crystalline poly(vinylidene fluoride-co-trifluoroethylene) films by a selective shear and detachment process. In: Organic Electronics. 2011 ; Vol. 12, No. 1. pp. 98-107.
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abstract = "We present a one-step route for micropatterning a thin ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) film with both molecular and microstructural crystal control over a large area. The method is based on the static mechanical shearing and subsequent detachment of a film spin coated on pre-patterned Al which has been lithographically prepared on a SiO2 substrate under appropriate thermal conditions. Selective detachment of the film in contact with the SiO2 substrate gave rise to micropatterns of PVDF-TrFE film positioned only on the Al regions. Further, the PVDF-TrFE film showed 25-nm-thick crystalline lamellae aligned perpendicular to the shear direction, wherein the c axis of the crystals was globally ordered parallel to the shear direction. The sheared and patterned PVDF-TrFE thin films are readily incorporated into non-volatile memory units of metal/ferroelectric/ metal capacitors and bottom gate-top contact field effect transistors, leading to arrays of memory devices with enhanced performance.",
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One-step micropatterning of highly-ordered semi-crystalline poly(vinylidene fluoride-co-trifluoroethylene) films by a selective shear and detachment process. / Chang, Jiyoun; Jung, Hee Joon; Jeong, Huisu; Park, Youn Jung; Sung, Jinwoo; Kang, Seok Ju; Jung, Gun Young; Sung, Myung M.; Park, Cheolmin.

In: Organic Electronics, Vol. 12, No. 1, 01.01.2011, p. 98-107.

Research output: Contribution to journalArticle

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AU - Chang, Jiyoun

AU - Jung, Hee Joon

AU - Jeong, Huisu

AU - Park, Youn Jung

AU - Sung, Jinwoo

AU - Kang, Seok Ju

AU - Jung, Gun Young

AU - Sung, Myung M.

AU - Park, Cheolmin

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N2 - We present a one-step route for micropatterning a thin ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) film with both molecular and microstructural crystal control over a large area. The method is based on the static mechanical shearing and subsequent detachment of a film spin coated on pre-patterned Al which has been lithographically prepared on a SiO2 substrate under appropriate thermal conditions. Selective detachment of the film in contact with the SiO2 substrate gave rise to micropatterns of PVDF-TrFE film positioned only on the Al regions. Further, the PVDF-TrFE film showed 25-nm-thick crystalline lamellae aligned perpendicular to the shear direction, wherein the c axis of the crystals was globally ordered parallel to the shear direction. The sheared and patterned PVDF-TrFE thin films are readily incorporated into non-volatile memory units of metal/ferroelectric/ metal capacitors and bottom gate-top contact field effect transistors, leading to arrays of memory devices with enhanced performance.

AB - We present a one-step route for micropatterning a thin ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) film with both molecular and microstructural crystal control over a large area. The method is based on the static mechanical shearing and subsequent detachment of a film spin coated on pre-patterned Al which has been lithographically prepared on a SiO2 substrate under appropriate thermal conditions. Selective detachment of the film in contact with the SiO2 substrate gave rise to micropatterns of PVDF-TrFE film positioned only on the Al regions. Further, the PVDF-TrFE film showed 25-nm-thick crystalline lamellae aligned perpendicular to the shear direction, wherein the c axis of the crystals was globally ordered parallel to the shear direction. The sheared and patterned PVDF-TrFE thin films are readily incorporated into non-volatile memory units of metal/ferroelectric/ metal capacitors and bottom gate-top contact field effect transistors, leading to arrays of memory devices with enhanced performance.

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