Calcination-Free Liftoff Photolithography of Mixed Dip-Coated Films Consisting of Rare-Earth-Ion-Doped Nanoparticles on Plastic Sheets

• Watanabe Satoshi

  Department of Materials Science and Technology, Tokyo University of Science

• Hyodo Hiroshi

  Department of Materials Science and Technology, Tokyo University of Science

• Taguchi Hirohisa

  Department of Information System Technology, Chukyo University

• Soga Kohei

  Department of Materials Science and Technology, Tokyo University of Science

• Takanashi Yoshifumi

  Department of Materials Science and Technology, Tokyo University of Science

• Matsumoto Mutsuyoshi

  Department of Materials Science and Technology, Tokyo University of Science

Bibliographic Information

Other Title

• Calcination-free photolithography of mixed dip-coated films consisting of rare-earth-ion-doped nanoparticles on plastic sheets

Abstract

We discuss the calcination-free liftoff photolithography of inorganic phosphor films consisting of two kinds of rare-earth-ion-doped (RE) nanoparticles dip-coated onto plastic sheets. Green and red upconversion luminescence were emitted from the RE-nanoparticles prepared from Y₂O₃ nanoparticles doped with 1 mol% Er³⁺ and 0.75 mol% Yb³⁺ (RE-1-nanoparticles) and those doped with 3 mol% Er³⁺ and 7 mol% Yb³⁺ (RE-2-nanoparticles), respectively. Near-infrared (NIR) fluorescence was also observed in the RE-1- and RE-2-nanoparticles. The visible transmittance of the RE-nanoparticle films was more than 90%. The intensity ratio of the green to red upconversion luminescence was controlled by adjusting the mixing ratio of the RE-1- and RE-2-nanoparticles. These results indicate that the multicolor-emitting devices can be fabricated easily for applications of flexible inorganic phosphor films to displays, emitting devices, and sensors with long operating lifetimes and resistance to UV light, air, and water.

Journal

• Journal of Oleo Science

  Journal of Oleo Science 61 (10), 565-573, 2012

  Japan Oil Chemists' Society

Keywords

• Rare-earth-ion-doped nanoparticle
• upconversion luminescence
• near infrared
• flexible device
• Kelvin probe force microscopy

Details

• CRID: 1390282679068814976
• NII Article ID: 130004435949
• NII Article ID: 40019417146
• NII Book ID: AA11503337
• DOI: 10.5650/jos.61.565
• COI: 1:STN:280:DC%2BC3s%2Fgsl2juw%3D%3D
• ISSN: 13473352
• ISSN: 13458957
• NDL BIB ID: 023949648
• PubMed: 23018853
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023949648
• Web Site: https://www.jstage.jst.go.jp/article/jos/61/10/61_565/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed