Preparation of multifunctional coating materials and their applications: Dissertation

Research output: ThesisDissertationCollection of Articles

Abstract

Sol-gel technique has been utilized for the fabrication of multifunctional inor-ganic-organic hybrid materials for specific applications. Synthesized methacrylic acid and benzoylacetone modified tin alkoxide precursors were used for the first time for the realization of directly UV-photopatternable antimony-doped tin dioxide coatings. These single-layered coatings have transmission values over 80 % at visible wavelengths and maximum electrical conductivity values around 15 S/cm. In comparison, multi-layered coatings without UV-photopatternability properties were fabricated. In this case, electrical conductivities are in the range of 102 S/cm. A novel material technique approach for laser protective eyewear was utilized for the synthesis and preparation of the mechanically tolerant and near-infrared absorbing filter coatings. Optical densities from 2 to 4 at laser threat wavelength, a ten fold increase in scratch resistance, and a hundred-fold increase in abrasion resistance, compared to uncoated polycarbonate substrates, were obtained by using absorbing dye-molecule doped sol-gel materials. Fabrication of a diffractive optical element, namely axicon, using hybrid-glass materials was demonstrated for the first time. Hybrid-glass material was tailored to fulfill the requirements of the functional axicon element.
Original languageEnglish
QualificationDoctor Degree
Awarding Institution
  • University of Oulu
Supervisors/Advisors
  • Laitinen, R., Supervisor, External person
  • Kopola, Harri, Supervisor
Award date5 Sep 2003
Place of PublicationEspoo
Publisher
Print ISBNs951-38-6227-5
Electronic ISBNs951-38-6228-3
Publication statusPublished - 2003
MoE publication typeG5 Doctoral dissertation (article)

Fingerprint

Coatings
polycarbonate
Sol-gels
Diffractive optical elements
Antimony
Fabrication
Glass
Wavelength
Density (optical)
Tin
Lasers
Hybrid materials
Wear resistance
Coloring Agents
Infrared radiation
Molecules
Substrates
Electric Conductivity
benzoylacetone
methacrylic acid

Keywords

  • sol-gel materials
  • antimony-doped tin dioxide
  • micro-optical elements
  • protective coatings

Cite this

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title = "Preparation of multifunctional coating materials and their applications: Dissertation",
abstract = "Sol-gel technique has been utilized for the fabrication of multifunctional inor-ganic-organic hybrid materials for specific applications. Synthesized methacrylic acid and benzoylacetone modified tin alkoxide precursors were used for the first time for the realization of directly UV-photopatternable antimony-doped tin dioxide coatings. These single-layered coatings have transmission values over 80 {\%} at visible wavelengths and maximum electrical conductivity values around 15 S/cm. In comparison, multi-layered coatings without UV-photopatternability properties were fabricated. In this case, electrical conductivities are in the range of 102 S/cm. A novel material technique approach for laser protective eyewear was utilized for the synthesis and preparation of the mechanically tolerant and near-infrared absorbing filter coatings. Optical densities from 2 to 4 at laser threat wavelength, a ten fold increase in scratch resistance, and a hundred-fold increase in abrasion resistance, compared to uncoated polycarbonate substrates, were obtained by using absorbing dye-molecule doped sol-gel materials. Fabrication of a diffractive optical element, namely axicon, using hybrid-glass materials was demonstrated for the first time. Hybrid-glass material was tailored to fulfill the requirements of the functional axicon element.",
keywords = "sol-gel materials, antimony-doped tin dioxide, micro-optical elements, protective coatings",
author = "Terho Kololuoma",
note = "Project code: E3SU00093",
year = "2003",
language = "English",
isbn = "951-38-6227-5",
series = "VTT Publications",
publisher = "VTT Technical Research Centre of Finland",
number = "499",
address = "Finland",
school = "University of Oulu",

}

Preparation of multifunctional coating materials and their applications : Dissertation. / Kololuoma, Terho.

Espoo : VTT Technical Research Centre of Finland, 2003. 66 p.

Research output: ThesisDissertationCollection of Articles

TY - THES

T1 - Preparation of multifunctional coating materials and their applications

T2 - Dissertation

AU - Kololuoma, Terho

N1 - Project code: E3SU00093

PY - 2003

Y1 - 2003

N2 - Sol-gel technique has been utilized for the fabrication of multifunctional inor-ganic-organic hybrid materials for specific applications. Synthesized methacrylic acid and benzoylacetone modified tin alkoxide precursors were used for the first time for the realization of directly UV-photopatternable antimony-doped tin dioxide coatings. These single-layered coatings have transmission values over 80 % at visible wavelengths and maximum electrical conductivity values around 15 S/cm. In comparison, multi-layered coatings without UV-photopatternability properties were fabricated. In this case, electrical conductivities are in the range of 102 S/cm. A novel material technique approach for laser protective eyewear was utilized for the synthesis and preparation of the mechanically tolerant and near-infrared absorbing filter coatings. Optical densities from 2 to 4 at laser threat wavelength, a ten fold increase in scratch resistance, and a hundred-fold increase in abrasion resistance, compared to uncoated polycarbonate substrates, were obtained by using absorbing dye-molecule doped sol-gel materials. Fabrication of a diffractive optical element, namely axicon, using hybrid-glass materials was demonstrated for the first time. Hybrid-glass material was tailored to fulfill the requirements of the functional axicon element.

AB - Sol-gel technique has been utilized for the fabrication of multifunctional inor-ganic-organic hybrid materials for specific applications. Synthesized methacrylic acid and benzoylacetone modified tin alkoxide precursors were used for the first time for the realization of directly UV-photopatternable antimony-doped tin dioxide coatings. These single-layered coatings have transmission values over 80 % at visible wavelengths and maximum electrical conductivity values around 15 S/cm. In comparison, multi-layered coatings without UV-photopatternability properties were fabricated. In this case, electrical conductivities are in the range of 102 S/cm. A novel material technique approach for laser protective eyewear was utilized for the synthesis and preparation of the mechanically tolerant and near-infrared absorbing filter coatings. Optical densities from 2 to 4 at laser threat wavelength, a ten fold increase in scratch resistance, and a hundred-fold increase in abrasion resistance, compared to uncoated polycarbonate substrates, were obtained by using absorbing dye-molecule doped sol-gel materials. Fabrication of a diffractive optical element, namely axicon, using hybrid-glass materials was demonstrated for the first time. Hybrid-glass material was tailored to fulfill the requirements of the functional axicon element.

KW - sol-gel materials

KW - antimony-doped tin dioxide

KW - micro-optical elements

KW - protective coatings

M3 - Dissertation

SN - 951-38-6227-5

T3 - VTT Publications

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Kololuoma T. Preparation of multifunctional coating materials and their applications: Dissertation. Espoo: VTT Technical Research Centre of Finland, 2003. 66 p.