Simultaneous enhancement of upconversion and downshifting luminescence via plasmonic structure.

Lee, Kyu-Tae; Park, Jong-Hyun; Kwon, S Joon; Kwon, Hyun-Keun; Kyhm, Jihoon; Kwak, Kyung-Won; Jang, Ho Seong; Kim, Su Yeon et al. · Nano Lett · 2015

basic_science · Level V

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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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