Issue 4, 2024

Direct laser induced writing of high precision gold nanosphere SERS patterns

Abstract

The high sensitivity and molecular fingerprint capability of Surface-Enhanced Raman Spectroscopy (SERS) have lead to a wide variety of applications ranging from classical physics, chemistry over biology to medicine. Equally, there are numerous methods to fabricate samples owing to the desired properties and to create the localized surface plasmon resonances (LSPRS). However, for many applications the LSPRs must be specifically localized on micrometer sized areas and multiple steps of lithography are needed to achieve the desired substrates. Here we present a fast and reliable direct laser induced writing (DIW) method to produce SERS substrates with active areas of interest in any desired size and shape in the micrometer regime. Afterwards, the SERS substrates have been functionalized with phthalocyanines. The DIW fabricated samples realize sub-monolayer sensitivity and an almost uniform enhancement over the entire area, which make this production method suitable for many sensing applications.

Graphical abstract: Direct laser induced writing of high precision gold nanosphere SERS patterns

Article information

Article type
Paper
Submitted
04 Հկտ 2023
Accepted
22 Հնվ 2024
First published
01 Փտվ 2024
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2024,6, 1213-1217

Direct laser induced writing of high precision gold nanosphere SERS patterns

O. Geladari, P. Haizmann, A. Maier, M. Strienz, M. Eberle, M. Scheele, H. Peisert, A. Schnepf, T. Chassé, K. Braun and A. J. Meixner, Nanoscale Adv., 2024, 6, 1213 DOI: 10.1039/D3NA00855J

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements