Printable ferroelectric PVDF/PMMA blend films with ultralow roughness for low voltage non-volatile polymer memory

Seok Ju Kang, Youn Jung Park, Insung Bae, Kap Jin Kim, Ho Cheol Kim, Siegfried Bauer, Edwin L. Thomas, Cheolmin Park

Research output: Contribution to journalArticle

154 Citations (Scopus)

Abstract

Here, a facile route to fabricate thin ferroelectric polyvinylidene fluoride) (PVDF)/poly(methylmethacrylate) (PMMA) blend films with very low surface roughness based on spin-coating and subsequent melt-quenching is described. Amorphous PMMA in a blend film effectively retards the rapid crystallization of PVDF upon quenching, giving rise to a thin and flat ferroelectric film with nanometer scale β-type PVDF crystals. The still, flat interfaces of the blend film with metal electrode and/or an organic semiconducting channel layer enable fabrication of a highly reliable ferroelectric capacitor and transistor memory unit operating at voltages as low as 15 V. For instance, with a TIPS-pentacene single crystal as an active semi-conducting layer, a flexible ferroelectric field effect transistor shows a clockwise I-V hysteresis with a drain current bistability of 103 and data retention time of more than 15h at ±15 V gate voltage. Furthermore, the robust interfacial homogeneity of the ferroelectric film is highly beneficial for transfer printing in which arrays of metal/ferroelectric/metal micro-capacitors are developed over a large area with well defined edge sharpness.

Original languageEnglish
Pages (from-to)2812-2818
Number of pages7
JournalAdvanced Functional Materials
Volume19
Issue number17
DOIs
Publication statusPublished - 2009 Sep 9

Fingerprint

Methylmethacrylate
vinylidene
low voltage
Ferroelectric materials
fluorides
Polymers
roughness
Surface roughness
Ferroelectric films
Data storage equipment
Metals
polymers
Electric potential
Quenching
Capacitors
capacitors
quenching
metals
Drain current
Spin coating

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Kang, Seok Ju ; Park, Youn Jung ; Bae, Insung ; Kim, Kap Jin ; Kim, Ho Cheol ; Bauer, Siegfried ; Thomas, Edwin L. ; Park, Cheolmin. / Printable ferroelectric PVDF/PMMA blend films with ultralow roughness for low voltage non-volatile polymer memory. In: Advanced Functional Materials. 2009 ; Vol. 19, No. 17. pp. 2812-2818.
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Printable ferroelectric PVDF/PMMA blend films with ultralow roughness for low voltage non-volatile polymer memory. / Kang, Seok Ju; Park, Youn Jung; Bae, Insung; Kim, Kap Jin; Kim, Ho Cheol; Bauer, Siegfried; Thomas, Edwin L.; Park, Cheolmin.

In: Advanced Functional Materials, Vol. 19, No. 17, 09.09.2009, p. 2812-2818.

Research output: Contribution to journalArticle

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