Journal
NANO LETTERS
Volume 15, Issue 4, Pages 2491-2497Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl5049803
Keywords
Upconversion; downshifting; plasmonic structure; energy transfer; metal nanopattern; nanotransfer printing; solar spectrum conversion
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Funding
- Pioneer Research Center Program through the National Research Foundation of Korea - Ministry of Science, ICT, and Future Planning [NRF-2013M3C1A3065040]
- National Research Foundation of Korea - Ministry of Science, ICT, and Future Planning [NRF-2009-C1AAA001-0092935]
- KIST [2E25373]
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We describe a metal nanodisk-insulator-metal (MIM) structure that enhances lanthanide-based upconversion (UC) and downshifting (DS) simultaneously. The structure was fabricated using a nanotransfer printing method that facilitates large-area applications of nanostructures for optoelectronic devices. The proposed MIM structure is a promising way to harness the entire solar spectrum by converting both ultraviolet and near-infrared to visible light concurrently through resonant-mode excitation. The overall photoluminescence enhancements of the UC and DS were 174- and 29-fold, respectively.
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