Large-Scale Soft-Lithographic Patterning of Plasmonic Nanoparticles.

Large-Scale Soft-Lithographic Patterning of Plasmonic Nanoparticles.
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等离子体纳米粒子的大规模软光刻图案化。

DOI:
10.1021/acsmaterialslett.0c00535
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发表时间:
2021-03-01
影响因子:
11.4
通讯作者:
Weiss PS
Weiss PS
中科院分区:
化学1区
文献类型:
--
作者:
Chiang N;Scarabelli L;Vinnacombe-Willson GA;Pérez LA;Dore C;Mihi A;Jonas SJ;Weiss PS

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Micro- and nanoscale patterned monolayers of plasmonic nanoparticles were fabricated by combining concepts from colloidal chemistry, self-assembly, and subtractive soft lithography. Leveraging chemical interactions between the capping ligands of pre-synthesized gold colloids and a polydimethylsiloxane stamp, we demonstrated patterning gold nanoparticles over centimeter-scale areas with a variety of micro- and nanoscale geometries, including islands, lines, and chiral structures (e.g., square spirals). By successfully achieving nanoscale manipulation over a wide range of substrates and patterns, we establish a powerful and straightforward strategy, nanoparticle chemical lift-off lithography (NP-CLL), for the economical and scalable fabrication of functional plasmonic materials with colloidal nanoparticles as building blocks, offering a transformative solution for designing next-generation plasmonic technologies.
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