Readily tunable surface plasmon resonances in gold nanoring arrays fabricated using lateral electrodeposition

Autor: SELVAKANNAN PERIASAMY, Suresh Kumar Bhargava, Sunil Mehla
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