Uniform color coating of multilayered TiO 2 /Al 2 O 3 films by atomic layer deposition

Woo Hee Kim, Hyungjun Kim, Han Bo Ram Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Thin film optics, based on light interference characteristics, are attracting increasing interest because of their ability to enable a functional color coating for various applications in optical, electronic, and solar industries. Here, we report on the dependence of coloring characteristics on single-layer TiO 2 thicknesses and alternating TiO 2 /Al 2 O 3 multilayer structures prepared by atomic layer deposition (ALD) at a low growth temperature. The ALD TiO 2 and Al 2 O 3 thin films were studied at a low growth temperature of 80°C. Then, the coloring features in the single-layer TiO 2 and alternating TiO 2 /Al 2 O 3 multilayers using both the ALD processes were experimentally examined on a TiN/cut stainless steel sheet. The Essential Macleod software was used to estimate and compare the color coating results. The simulation results revealed that five different colors of the single TiO 2 layers were shown experimentally, depending on the film thickness. For the purpose of highly uniform pink color coating, the film structures of TiO 2 /Al 2 O 3 multilayers were designed in advance. It was experimentally demonstrated that the evaluated colors corresponded well with the simulated color spectrum results, exhibiting a uniform pink color with wide incident angles ranging from 0° to 75°. This article advances practical applications requiring highly uniform color coatings of surfaces in a variety of optical coating areas with complex topographical structures.

Original languageEnglish
Pages (from-to)177-183
Number of pages7
JournalJournal of Coatings Technology and Research
Volume14
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Atomic layer deposition
atomic layer epitaxy
Color
color
coatings
Coatings
Multilayers
Growth temperature
Coloring
Optical coatings
Light interference
Thin films
optical coatings
Stainless Steel
Steel sheet
thin films
laminates
Film thickness
stainless steels
Optics

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

Cite this

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abstract = "Thin film optics, based on light interference characteristics, are attracting increasing interest because of their ability to enable a functional color coating for various applications in optical, electronic, and solar industries. Here, we report on the dependence of coloring characteristics on single-layer TiO 2 thicknesses and alternating TiO 2 /Al 2 O 3 multilayer structures prepared by atomic layer deposition (ALD) at a low growth temperature. The ALD TiO 2 and Al 2 O 3 thin films were studied at a low growth temperature of 80°C. Then, the coloring features in the single-layer TiO 2 and alternating TiO 2 /Al 2 O 3 multilayers using both the ALD processes were experimentally examined on a TiN/cut stainless steel sheet. The Essential Macleod software was used to estimate and compare the color coating results. The simulation results revealed that five different colors of the single TiO 2 layers were shown experimentally, depending on the film thickness. For the purpose of highly uniform pink color coating, the film structures of TiO 2 /Al 2 O 3 multilayers were designed in advance. It was experimentally demonstrated that the evaluated colors corresponded well with the simulated color spectrum results, exhibiting a uniform pink color with wide incident angles ranging from 0° to 75°. This article advances practical applications requiring highly uniform color coatings of surfaces in a variety of optical coating areas with complex topographical structures.",
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Uniform color coating of multilayered TiO 2 /Al 2 O 3 films by atomic layer deposition . / Kim, Woo Hee; Kim, Hyungjun; Lee, Han Bo Ram.

In: Journal of Coatings Technology and Research, Vol. 14, No. 1, 01.01.2017, p. 177-183.

Research output: Contribution to journalArticle

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