CREATION OF PLASMON-BASED NANOANTENNA FOR HYDROGEN PRODUCTION

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929366" target="_blank" >RIV/60461373:22310/24:43929366 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/nanocon/2023/read/4754-creation-of-plasmon-based-nanoantenna-for-hydrogen-production.pdf" target="_blank" >https://www.confer.cz/nanocon/2023/read/4754-creation-of-plasmon-based-nanoantenna-for-hydrogen-production.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2023.4754" target="_blank" >10.37904/nanocon.2023.4754</a>

Result language

angličtina

Original language name

CREATION OF PLASMON-BASED NANOANTENNA FOR HYDROGEN PRODUCTION

Original language description

Plasmonic nanoantennas represent advanced structures that allow sub-diffraction manipulation with light energy and its simultaneous focus below the diffraction limit. Gigantic focusing of light energy in the desired targeted place allows for the realization of several phenomena, such as plasmon-induced charge energy transfer of excitation/injection of so-called hot electrons. In turn, such phenomena have found a range of applications in the fields of medicine, sensorics, photovoltaics, and chemical transformations triggering. The main obstacle to greater use of plasmon-based nanoantennas is their complex preparation route and the resulting lack of ‘scalability’ of the structure. In this work, we propose a simple and effective method for the preparation of plasmonic nanoantennas, in which the metal-insulator-metal (MIM) system is used. In particular, a gold grating/polystyrene/platinum heterolayer structure was created. In our design, the gold grating ensures the excitation of the surface plasmon, the polystyrene acts as a dielectric spacer between metals, and the platinum layer is responsible for the catalytic function. The created structure was subsequently used for the water splitting half reaction (hydrogen evolution - HER), which was performed in the photoelectrochemical regime. The structure was also optimized from the theoretical and experimental points of view to reach the maximum efficiency in terms of hydrogen production. After optimization of the structure parameters, we observed a doubled increase in HER efficiency under illumination with light, which corresponded to the maximum of plasmon resonance absorption bands. The proposed nanoantenna design is favoured by the simplicity of preparation and the target area of use - the production of green hydrogen with the utilization of light (potentially, sunlight) energy. © 2024 NANOCON Conference Proceedings - International Conference on Nanomaterials. All rights reserved.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA22-02022S" target="_blank" >GA22-02022S: Hybrid materials and advanced structures for mimicking natural photosynthesis</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

NANOCON Conference Proceedings

ISBN

978-80-88365-15-0

ISSN

2694-930X

e-ISSN

—

Number of pages

6

Pages from-to

94-99

Publisher name

Tanger s.r.o.

Place of publication

Ostrava

Event location

Brno

Event date

Oct 18, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

001234125400015