通过等离子体结构同时增强上转换和下转换发光。

Simultaneous enhancement of upconversion and downshifting luminescence via plasmonic structure.

机构信息

†Korea Institute of Science and Technology, Hwarang-ro, 14-gil, Seongbuk-gu, Seoul 136-791, Republic of Korea.

§School of Electrical Engineering, Korea University, Anam-ro, Seongbuk-gu, Seoul 136-713, Republic of Korea.

出版信息

Nano Lett. 2015 Apr 8;15(4):2491-7. doi: 10.1021/nl5049803. Epub 2015 Mar 13.

DOI:10.1021/nl5049803

PMID:25756859

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.

摘要

我们描述了一种金属纳米盘-绝缘体-金属（MIM）结构，该结构同时增强了基于镧系元素的上转换（UC）和下转换（DS）。该结构是使用纳米转移印刷方法制造的，该方法便于在光电设备中应用大面积的纳米结构。所提出的 MIM 结构是一种通过共振模式激发同时将紫外光和近红外光转换为可见光来利用整个太阳光谱的有前途的方法。UC 和 DS 的整体光致发光增强分别为 174 倍和 29 倍。