Fabrication of 2D photonic crystal assisted Y2O3:Eu3+ thin-film phosphors by direct nano-imprinting
- Title
- Fabrication of 2D photonic crystal assisted Y2O3:Eu3+ thin-film phosphors by direct nano-imprinting
- Author
- 안진호
- Keywords
- Nano-imprint; PDMS stamp; Photonic crystal; Thin-film phosphor; Sol-gel
- Issue Date
- 2011-12
- Publisher
- Elsevier Science B.V., Amsterdam.
- Citation
- Microelectronic Engineering, 2011, 88(9), p.2930-2933
- Abstract
- The effect of a two-dimensional Y2O3:Eu3+ photonic crystal (PC) pattern on the extraction efficiency of photoluminescence from the underlying Y2O3:Eu3+ thin-film phosphor was investigated. The photonic crystal structure was fabricated using a direct nano-imprint process with a Pechini-type Y2O3:Eu3+ sol as the nano-imprint resin and a patterned polydimethylsiloxane (PDMS) stamp as the mold. The elevated pressure and temperature of the nano-imprinting process converts the Y2O3:Eu3+ sol into a Y2O3:Eu3+ gel resulting in high definition transfer of the 2D patterns of the master template into the gel on top of the Y2O3:Eu3+ thin-film phosphor layer. The extraction efficiency of the 2D Y2O3:Eu3+ gel PC-assisted Y2O3:Eu3+ thin-film phosphor was approximately 3.7 times higher than a non-PC Y2O3:Eu3+ gel coated Y2O3:Eu3+ thin-film phosphor. (C) 2011 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/abs/pii/S0167931711004412http://hdl.handle.net/20.500.11754/65774
- ISSN
- 0167-9317
- DOI
- 10.1016/j.mee.2011.03.162
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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