Photodetectors: A Plasmonic Platform with Disordered Array of Metal Nanoparticles for Three-Order Enhanced Upconversion Luminescence and Highly Sensitive Near-Infrared Photodetector (Adv. Mater. 36/2016)
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- 作者：Seok Joon Kwon ; Gi Yong Lee ; Kinam Jung ; Ho Seong Jang ; Joon-Suh Park ; Honglyoul Ju ; Il Ki Han and Hyungduk Ko
- 刊名：Advanced Materials
- 出版年：2016
- 出版时间：September 28, 2016
- 年：2016
- 卷：28
- 期：36
- 页码：7809
- 全文大小：1797K
- ISSN：1521-4095
文摘
On page 7899, S. J. Kwon, H. Ko, and co-workers report a promising plasmonic platform, prepared by a randomized array of silver nanoparticles, which greatly boosts near-IR-to-visible (green and red) luminescence from underlying upconversion nanoparticles (pale green particles) and substantially enhances near-IR photosensitivity. The silver particles in the disordered array effectively work as both plasmonic hot spots and nanoantennas, which notably increases quantum yield and emissivity of the luminescence.