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Updated: Apr 16, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
Published on: November 10, 2017
Simultaneous enhancement of upconversion and downshifting luminescence via plasmonic structure
Kyu-Tae Lee1,2, Jong-Hyun Park1,3, S Joon Kwon1
1†Korea Institute of Science and Technology, Hwarang-ro, 14-gil, Seongbuk-gu, Seoul 136-791, Republic of Korea.
Abstract:
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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