One-step direct-laser metal writing of sub-100 nm 3D silver nanostructures in a gelatin matrix

Nanotechnology
SeungYeon KangEric Mazur

Abstract

Developing an ability to fabricate high-resolution, 3D metal nanostructures in a stretchable 3D matrix is a critical step to realizing novel optoelectronic devices such as tunable bulk metal-dielectric optical devices and THz metamaterial devices that are not feasible with alternative techniques. We report a new chemistry method to fabricate high-resolution, 3D silver nanostructures using a femtosecond-laser direct metal writing technique. Previously, only fabrication of 3D polymeric structures or single-/few-layer metal structures was possible. Our method takes advantage of unique gelatin properties to overcome such previous limitations as limited freedom in 3D material design and short sample lifetime. We fabricate more than 15 layers of 3D silver nanostructures with a resolution of less than 100 nm in a stable dielectric matrix that is flexible and has high large transparency that is well-matched for potential applications in the optical and THz metamaterial regimes. This is a single-step process that does not require any further processing. This work will be of interest to those interested in fabrication methods that utilize nonlinear light-matter interactions and the realization of future metamaterials.

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Citations

Mar 10, 2016·Advanced Materials·Eva BlascoMartin Wegener
Jan 5, 2017·Advanced Materials·Luca HirtTomaso Zambelli
May 12, 2017·Physical Chemistry Chemical Physics : PCCP·Kui ZhangYiqun Wu
Jan 11, 2018·Scientific Reports·Manan MachidaMitsuhiro Terakawa
Jun 6, 2017·Angewandte Chemie·Christopher Barner-KowollikMartin Wegener
Jun 6, 2019·Optics Express·Manan MachidaMitsuhiro Terakawa
Mar 11, 2020·Nano Letters·Shuichi ToyouchiHiroshi Uji-I
Nov 3, 2020·ACS Applied Nano Materials·Puskal Kunwar, Pranav Soman
Feb 11, 2020·ACS Applied Materials & Interfaces·Chee Leng LayXing Yi Ling
Dec 29, 2021·Nano Letters·Shuichiro HayashiMitsuhiro Terakawa
Oct 7, 2019··Benjamin O'SullivanJames F Rohan

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