Readily tunable surface plasmon resonances in gold nanoring arrays fabricated using lateral electrodeposition
Autor: | SELVAKANNAN PERIASAMY, Suresh Kumar Bhargava, Sunil Mehla |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Nanoscale. 14:9989-9996 |
ISSN: | 2040-3372 2040-3364 |
DOI: | 10.1039/d2nr02198f |
Popis: | Generation and fine-tuning of surface plasmon resonances is a prerequstite for several established and emerging applications such as photovoltaics, photocatalysis, photothermal therapy, surface-enhanced spectroscopy, sensing, superlensing and lasing. We present a low-cost and scalable lateral electrodeposition method for fabrication of high aspect ratio gold nanoring arrays that exhibit multiple surface plasmon resonances in the visible to near-infrared region. Nickel disc arrays of 2 µm size were initially fabricated using maskless lithography and e-beam evaporation. Selective electrodeposition of gold on the lateral surfaces of nickel disc arrays was achieved using a 50 nm SiO |
Databáze: | OpenAIRE |
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