Plasmonic color filters fabricated via oxide-based nanotransfer printing

Nanotechnology
SoonHyoung HwangJun-Ho Jeong

Abstract

Plasmonic filters have recently become a topic of significant interest because they are suitable for a wide range of applications. However, effective fabrication of plasmonic filters remains a challenge. In this paper, we demonstrate a simple method for fabricating plasmonic color filters based on nanotransfer printing (nTP) , using SiO2 as a hard mask for Al etching. nTP was performed on a 100 nm Al layer deposited on a glass wafer substrate with a 10 nm Al layer and a 20 nm SiO2 layer with a nanohole pattern. The 10 nm Al layer and 20 nm SiO2 layers were previously transferred from a polymer stamp prepared to create patterns of subwavelength-sized holes. The plasmonic filters were ultimately fabricated using the SiO2 layer as a hard mask to selectively etch the Al layer. The optical properties of the fabricated plasmonic filters were evaluated using experimental and simulation tools. In addition, we analyzed the results of nTP on the Al and SiO2 films by varying the temperature, pressure, and SiO2-film thickness. We believe that this technique is a promising method for fabricating nanostructures and for widening the scope of practical application of plasmonics because of its high efficiency and cost-effectiveness.

References

Sep 14, 2006·Optics Letters·A MehtaE G Johnson
Jun 11, 2008·Optics Express·Yeo-Taek YoonKi-Dong Lee
Dec 11, 2006·Optics Express·Daniel Van LabekeLifeng Li
Nov 12, 2007·Optics Express·Hong-Sik LeeKi-Dong Lee
Apr 15, 2010·Optics Express·Yeo-Taek Yoon, Sang-Shin Lee
Jul 13, 2011·Optics Express·Laurent FreyJean Michailos
Nov 2, 2011·Nanoscale Research Letters·Joshua F EinsleAnatoly V Zayats
Sep 1, 2012·Advanced Materials·Andrew CarlsonJohn A Rogers
Aug 9, 2017·ACS Applied Materials & Interfaces·Boyeon HwangJun-Ho Jeong

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Citations

Jan 16, 2021·Optics Letters·Mansoor A SultanJ Todd Hastings

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