Issue 41, 2023

The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

Abstract

Dendritic nanostructures are commonly observed in nanomaterials and thin films synthesized using electrochemical methods. The dendritic morphology has a unique fractal structure consisting of several closely spaced tips and gaps. This article investigates the impact of variations in the morphology of sunflower mimic metasurfaces on their plasmonic activity using experimental studies and finite difference time domain (FDTD) simulations. Different types of gold sunflower arrays with gold dendrites of varying shapes, aspect ratios and packing densities were first synthesized by selective electrodeposition on the lateral surfaces of Au–SiO2 disc arrays. Elementary model structures were then designed for FDTD simulations based on the structure of experimentally fabricated gold sunflower arrays. The distributions of enhanced electric field and hot spots were mapped with variations in the morphological features. The experimentally observed optical properties of gold sunflower arrays such as optical reflectance, surface-enhanced Raman scattering and photocatalytic activities were rationalized based on the fundamental understanding developed from FDTD simulations.

Graphical abstract: The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

  • This article is part of the themed collection: #MyFirstJMCC

Supplementary files

Article information

Article type
Paper
Submitted
19 7月 2023
Accepted
15 9月 2023
First published
18 9月 2023

J. Mater. Chem. C, 2023,11, 14088-14096

The impact of dendrite morphology on the optical properties of sunflower mimic plasmonic metasurfaces

S. Mehla, S. Balendhran and S. K. Bhargava, J. Mater. Chem. C, 2023, 11, 14088 DOI: 10.1039/D3TC02544F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements