Light Conversion Efficiency of Emitters on Top of Plasmonic and Dielectric Arrays of Nanoparticles

S. Murai (Corresponding author), K. Noguchi, G. W. Castellanos, S. Wang, K. Tanaka, J. Gómez Rivas (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Coupling layers of light emitters to arrays of plasmonic particles provides an opportunity to tailor the photoluminescence, both spectrally and spatially, and opens new venues for the design of phosphors in solid-state-lighting applications. While a significant enhancement of the photoluminescence for certain frequencies and in defined directions has been reported and described in terms of pump enhancement and emission outcoupling, the effect of optical absorption by metals on the conversion efficiency and total photoluminescence intensity is less well studied. Here, we investigate the optical absorption for emitter layers deposited on diffractive arrays of silver and titanium dioxide using an integrating sphere. The results show that absorption at the excitation wavelengths of the emitter has a critical impact on the conversion efficiency, while the absorption at luminescence wavelengths does not modify significantly the total radiation intensity. The evaluation technique used in this manuscript to quantify the optical absorption by the array, leads to a working recipe to design resonant systems that can be exploited in solid-state-lighting applications.

Original languageEnglish
Article number011614
Number of pages7
JournalECS Journal of Solid State Science and Technology
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

Funding

This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, ), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. Ministry of Education, Culture, Sports, Science, and Technology (MEXT) http://dx.doi.org/10.13039/501100001700 17KK0133 Iketani Science and Technology Foundation Asahi Glass Foundation http://dx.doi.org/10.13039/100007684 Ministry of Education, Culture, Sports, Science, and Technology (MEXT) http://dx.doi.org/10.13039/501100001700 CUPAL Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Netherlands Organisation for Scientific Research) http://dx.doi.org/10.13039/501100003246 Vici project SCOPE no. 680-47-628 � The Author(s) 2019. Published by ECS. http://creativecommons.org/licenses/by/4.0/

FundersFunder number
Ministry of Education, Culture, Sports, Science and Technology17KK0133
Nederlandse Organisatie voor Wetenschappelijk Onderzoek680-47-628

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