Langmuir-blodgett films prepared from ferroelectric lead zirconium titanate particles

N. A. Kotov, G. Zavala, J. H. Fendler

Resultado de la investigación: Article

11 Citas (Scopus)

Resumen

The preparation of monoparticle-thick Langmuir films from 70-nm, lauric acid-coated (dispersion I) and alcohol-coated (dispersion II) ferroelectric lead zirconium titanate (PZT) particles is described. Surface pressure (II) vs surface area (A) isotherms, in situ on the water surfaces, atomic force microscopic (AFM), and electron microscopic (TEM) images, ex situ after their transfer to substrates, established the presence of monoparticles with appreciable and variable interparticle distances (dispersion I) and relatively densely packed monoparticles (dispersion II) in the Langmuir films. Langmuir-Blodgett (LB) films were formed by the monoparticulate layer by monoparticulate layer transfer of the PZT film to substrates (glass slides coated by 500-A gold or indium tin oxide). Good transfer ratios (up to eight layers) were obtained if each transferred PZT film was fixed by a methanol:ethanol:2-propanol solution of lead(II) acetate, zirconium(IV) butoxide, and titanium-(IV) isopropoxide taken in stoichiometric amounts for Pb(Zr0.5Ti0.5)O and cured at 80°C for 1.5 min. Ferroelectric properties of the LB films, prepared from dispersion II, have been demonstrated by polarization measurements using a Sawyer-Tower circuit.

Idioma originalEnglish
Páginas (desde-hasta)12375-12378
Número de páginas4
PublicaciónJournal of Physical Chemistry
Volumen99
N.º33
EstadoPublished - 1 ene 1995

Huella dactilar

Langmuir Blodgett films
Langmuir-Blodgett films
Zirconium
Ferroelectric materials
Lead
lauric acid
2-Propanol
Propanol
towers
Substrates
Tin oxides
surface water
chutes
Thick films
Gold
indium oxides
Indium
Towers
tin oxides
Methanol

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

Citar esto

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abstract = "The preparation of monoparticle-thick Langmuir films from 70-nm, lauric acid-coated (dispersion I) and alcohol-coated (dispersion II) ferroelectric lead zirconium titanate (PZT) particles is described. Surface pressure (II) vs surface area (A) isotherms, in situ on the water surfaces, atomic force microscopic (AFM), and electron microscopic (TEM) images, ex situ after their transfer to substrates, established the presence of monoparticles with appreciable and variable interparticle distances (dispersion I) and relatively densely packed monoparticles (dispersion II) in the Langmuir films. Langmuir-Blodgett (LB) films were formed by the monoparticulate layer by monoparticulate layer transfer of the PZT film to substrates (glass slides coated by 500-A gold or indium tin oxide). Good transfer ratios (up to eight layers) were obtained if each transferred PZT film was fixed by a methanol:ethanol:2-propanol solution of lead(II) acetate, zirconium(IV) butoxide, and titanium-(IV) isopropoxide taken in stoichiometric amounts for Pb(Zr0.5Ti0.5)O and cured at 80°C for 1.5 min. Ferroelectric properties of the LB films, prepared from dispersion II, have been demonstrated by polarization measurements using a Sawyer-Tower circuit.",
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Langmuir-blodgett films prepared from ferroelectric lead zirconium titanate particles. / Kotov, N. A.; Zavala, G.; Fendler, J. H.

En: Journal of Physical Chemistry, Vol. 99, N.º 33, 01.01.1995, p. 12375-12378.

Resultado de la investigación: Article

TY - JOUR

T1 - Langmuir-blodgett films prepared from ferroelectric lead zirconium titanate particles

AU - Kotov, N. A.

AU - Zavala, G.

AU - Fendler, J. H.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The preparation of monoparticle-thick Langmuir films from 70-nm, lauric acid-coated (dispersion I) and alcohol-coated (dispersion II) ferroelectric lead zirconium titanate (PZT) particles is described. Surface pressure (II) vs surface area (A) isotherms, in situ on the water surfaces, atomic force microscopic (AFM), and electron microscopic (TEM) images, ex situ after their transfer to substrates, established the presence of monoparticles with appreciable and variable interparticle distances (dispersion I) and relatively densely packed monoparticles (dispersion II) in the Langmuir films. Langmuir-Blodgett (LB) films were formed by the monoparticulate layer by monoparticulate layer transfer of the PZT film to substrates (glass slides coated by 500-A gold or indium tin oxide). Good transfer ratios (up to eight layers) were obtained if each transferred PZT film was fixed by a methanol:ethanol:2-propanol solution of lead(II) acetate, zirconium(IV) butoxide, and titanium-(IV) isopropoxide taken in stoichiometric amounts for Pb(Zr0.5Ti0.5)O and cured at 80°C for 1.5 min. Ferroelectric properties of the LB films, prepared from dispersion II, have been demonstrated by polarization measurements using a Sawyer-Tower circuit.

AB - The preparation of monoparticle-thick Langmuir films from 70-nm, lauric acid-coated (dispersion I) and alcohol-coated (dispersion II) ferroelectric lead zirconium titanate (PZT) particles is described. Surface pressure (II) vs surface area (A) isotherms, in situ on the water surfaces, atomic force microscopic (AFM), and electron microscopic (TEM) images, ex situ after their transfer to substrates, established the presence of monoparticles with appreciable and variable interparticle distances (dispersion I) and relatively densely packed monoparticles (dispersion II) in the Langmuir films. Langmuir-Blodgett (LB) films were formed by the monoparticulate layer by monoparticulate layer transfer of the PZT film to substrates (glass slides coated by 500-A gold or indium tin oxide). Good transfer ratios (up to eight layers) were obtained if each transferred PZT film was fixed by a methanol:ethanol:2-propanol solution of lead(II) acetate, zirconium(IV) butoxide, and titanium-(IV) isopropoxide taken in stoichiometric amounts for Pb(Zr0.5Ti0.5)O and cured at 80°C for 1.5 min. Ferroelectric properties of the LB films, prepared from dispersion II, have been demonstrated by polarization measurements using a Sawyer-Tower circuit.

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