Share Email Print

Proceedings Paper

Integrating quantum-dots and Mie resonators into a 2D metamaterial for sunlight downconversion (Conference Presentation)
Author(s): Antonio Capretti; Arnon Lesage; Tom Gregorkiewicz
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Dielectric Mie resonators and quantum-confined semiconductors enable an unrivaled control over light absorption and excited electrons. Here, we embed photoluminescent silicon nanocrystals into a planar array of SiO2 nanocylinders, and experimentally demonstrate a powerful concept: the resulting metamaterial preserves the nanocrystal radiative properties and inherits the spectrally-selective absorption properties of the nanocylinders. This hierarchical approach provides increased photoluminescence intensity without plasmonic components. This spectral selectivity of absorption paves the way for an effective light down-conversion scheme to increase the efficiency of solar cells. The demonstrated principle is general and can be applied to other semiconductor quantum dots, ions or molecules.

Paper Details

Date Published: 25 September 2017
Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 1034315 (25 September 2017); doi: 10.1117/12.2272440
Show Author Affiliations
Antonio Capretti, Univ. van Amsterdam (Netherlands)
Arnon Lesage, Univ. van Amsterdam (Netherlands)
Tom Gregorkiewicz, Univ. van Amsterdam (Netherlands)

Published in SPIE Proceedings Vol. 10343:
Metamaterials, Metadevices, and Metasystems 2017
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

© SPIE. Terms of Use
Back to Top