Photoluminescence Enhancement at Telecom Wavelengths from PbS/CdS Quantum Dots coupled to a Plasmonic Crescent Metasurface

Al-Hamadani A, Gupta V, Montaño-Priede JL, Thomas R, Muravitskaya A, Markey L, Roux-Byl C, Pons T, Zapata-Herrera M, Zabala N, Weeber JC, Suckow S, Vogel N, Bouillard JSG, Adawi AM (2025)

Publication Language: English

Publication Type: Journal article

Publication year: 2025

Journal

ACS Applied Nano Materials American Chemical Society

Book Volume: 8

Pages Range: 19474-19482

Journal Issue: 40

DOI: 10.1021/acsanm.5c03473

Abstract

Efficient near-infrared (NIR) light sources are essential for a wide range of applications such as telecommunications, optoelectronic devices, biomedical sciences, infrared imaging, and machine vision. Colloidal quantum dots (QDs) have emerged as a promising platform for NIR technologies due to their tunable optical properties across the NIR spectrum, compatibility with silicon-based technology infrastructure, and ease of large-scale integration into nanophotonic systems. Coupling colloidal QDs with plasmonic structures provides an enhanced control over their optical properties. In this work, we investigate the coupling of a gold plasmonic crescent metasurface with NIR-emitting colloidal PbS/CdS QDs, at the telecommunication wavelength of 1.55 μm. The metasurface was specifically designed to allow for the selective excitation photoluminescence (PL) enhancement with polarization control, capitalizing on the anisotropic nature of the plasmonic crescents. Maximum PL enhancement factors of 1.6 were observed, with a strong dependence on the excitation wavelength and polarization. These findings, supported by full-wave three-dimensional finite-difference-time-domain (FDTD) numerical simulations, offer strategies to control and optimize the performance of colloidal QD-based NIR light sources for a wide range of applications.

Authors with CRIS profile

Vaibhav Gupta Lehrstuhl für Interfaces und Partikeltechnologie (LFG) Nicolas Vogel Lehrstuhl für Interfaces und Partikeltechnologie (LFG)

Involved external institutions

University of Hull GB United Kingdom (GB) Center for Materials Physics / Centro de Física de Materiales ES Spain (ES) AMO GmbH Gesellschaft für Angewandte Mikro- und Optoelektronik mbH DE Germany (DE) Université Bourgogne Europe FR France (FR) Sorbonne Université FR France (FR)

How to cite

APA:

Al-Hamadani, A., Gupta, V., Montaño-Priede, J.L., Thomas, R., Muravitskaya, A., Markey, L.,... Adawi, A.M. (2025). Photoluminescence Enhancement at Telecom Wavelengths from PbS/CdS Quantum Dots coupled to a Plasmonic Crescent Metasurface. ACS Applied Nano Materials, 8(40), 19474-19482. https://doi.org/10.1021/acsanm.5c03473

MLA:

Al-Hamadani, Areeg, et al. "Photoluminescence Enhancement at Telecom Wavelengths from PbS/CdS Quantum Dots coupled to a Plasmonic Crescent Metasurface." ACS Applied Nano Materials 8.40 (2025): 19474-19482.

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