The variation of the enhanced PL efficiency of Y2O3:Eu3+ phosphor films with the height to the ZrO2 nanoparticle-assisted 2D PCL by reverse nano-imprint lithography
- Title
- The variation of the enhanced PL efficiency of Y2O3:Eu3+ phosphor films with the height to the ZrO2 nanoparticle-assisted 2D PCL by reverse nano-imprint lithography
- Author
- 안진호
- Keywords
- Reverse nano-imprint; ZrO2 nanoparticle; TPT/PDMS stamp; Photonic crystal; Phosphor film
- Issue Date
- 2015-03
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- MICROELECTRONIC ENGINEERING, v. 136, Page. 48-50
- Abstract
- We developed a zirconium oxide (ZrO2) nanoparticle-assisted photonic structure for improving the light extraction efficiency of Y2O3:Eu3+ phosphor films by reverse nano-imprint lithography approach. The structural effect of a two-dimensional (2D) ZrO2 nanoparticle photonic crystal (PC) pattern on the extraction efficiency of photoluminescence (PL) from the underlying Y2O3:Eu3+ phosphor film was investigated. The 2D photonic crystal structure was fabricated using a reverse nano-imprint process with a ZrO2 nanoparticle solution as a nano-imprint resin and a patterned trimethylolpropane propoxylate triacrylate (TPT)/polydimethylsiloxane (PDMS) stamp as a mold. We controlled height of ZrO2 nanoparticle patterns in the range 190-370 nm by varying the height of master mold. This simple process results in 6.9 times improvement of extraction efficiency for a 2D ZrO2 nanoparticle-assisted photonic crystal pattern (h = similar to 370 nm) compared to the conventional Y2O3:Eu3+ thin-film phosphors. (C) 2015 Elsevier B.V. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S0167931715001483http://hdl.handle.net/20.500.11754/22722
- ISSN
- 0167-9317; 1873-5568
- DOI
- 10.1016/j.mee.2015.03.035
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML