Characterization of TiO2/polyelectrolyte thin film fabricated by a layer-by-layer self-assembly method

Jin Ho Kim; Seimei Shiratori

doi:10.1143/JJAP.44.7588

Characterization of TiO₂/polyelectrolyte thin film fabricated by a layer-by-layer self-assembly method

Jin Ho Kim, Seimei Shiratori

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Multilayers thin films consisted of TiO₂ nanoparticles and oppositely charged polyelectrolytes were fabricated by layer-by-layer self-assembly method and their properties were characterized. At pH 2.0, TiO₂ nanoparticles were maximally deposited with poly(sodium 4-styrenesulfonate) (PSS) and the thickness and the surface roughness of film assembled with poly(acrylic acid) (PAA) were largest because of the loopy structure of PAA in acidic solution. On the other hand, the thin film prepared with poly(vinylsulfonic acid-sodium salt) (PVS) showed the high deposition of TiO₂, lowest surface roughness, high refractive index (n = 2.1) at 632nm, and high transmittance in visible range. In addition, this film composed of anatase nanoparticles showed good photocatalytic property by decomposing methyl orange molecules with UV irradiation.

Original language	English
Pages (from-to)	7588-7592
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	44
Issue number	10
DOIs	https://doi.org/10.1143/JJAP.44.7588
Publication status	Published - 2005 Oct 11
Externally published	Yes

Keywords

Layer-by-layer self-assembly
Polyelectrolyte
Thin film
TiO nanoparticles

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.44.7588

Cite this

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title = "Characterization of TiO2/polyelectrolyte thin film fabricated by a layer-by-layer self-assembly method",

abstract = "Multilayers thin films consisted of TiO2 nanoparticles and oppositely charged polyelectrolytes were fabricated by layer-by-layer self-assembly method and their properties were characterized. At pH 2.0, TiO2 nanoparticles were maximally deposited with poly(sodium 4-styrenesulfonate) (PSS) and the thickness and the surface roughness of film assembled with poly(acrylic acid) (PAA) were largest because of the loopy structure of PAA in acidic solution. On the other hand, the thin film prepared with poly(vinylsulfonic acid-sodium salt) (PVS) showed the high deposition of TiO2, lowest surface roughness, high refractive index (n = 2.1) at 632nm, and high transmittance in visible range. In addition, this film composed of anatase nanoparticles showed good photocatalytic property by decomposing methyl orange molecules with UV irradiation.",

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N2 - Multilayers thin films consisted of TiO2 nanoparticles and oppositely charged polyelectrolytes were fabricated by layer-by-layer self-assembly method and their properties were characterized. At pH 2.0, TiO2 nanoparticles were maximally deposited with poly(sodium 4-styrenesulfonate) (PSS) and the thickness and the surface roughness of film assembled with poly(acrylic acid) (PAA) were largest because of the loopy structure of PAA in acidic solution. On the other hand, the thin film prepared with poly(vinylsulfonic acid-sodium salt) (PVS) showed the high deposition of TiO2, lowest surface roughness, high refractive index (n = 2.1) at 632nm, and high transmittance in visible range. In addition, this film composed of anatase nanoparticles showed good photocatalytic property by decomposing methyl orange molecules with UV irradiation.

AB - Multilayers thin films consisted of TiO2 nanoparticles and oppositely charged polyelectrolytes were fabricated by layer-by-layer self-assembly method and their properties were characterized. At pH 2.0, TiO2 nanoparticles were maximally deposited with poly(sodium 4-styrenesulfonate) (PSS) and the thickness and the surface roughness of film assembled with poly(acrylic acid) (PAA) were largest because of the loopy structure of PAA in acidic solution. On the other hand, the thin film prepared with poly(vinylsulfonic acid-sodium salt) (PVS) showed the high deposition of TiO2, lowest surface roughness, high refractive index (n = 2.1) at 632nm, and high transmittance in visible range. In addition, this film composed of anatase nanoparticles showed good photocatalytic property by decomposing methyl orange molecules with UV irradiation.

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