Toward white light emission from plasmonic-luminescent hybrid nanostructures

We study the light emission of plasmonic-luminescent hybrid nanostructures consisting of Ag nanoparticles (NPs) embedded in europium oxide (EuOX). The Ag NPs present a bidimensional organization in the nanostructures and they optically behave as oblate spheroids. The photoluminescence (PL) spectral...

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Autores principales:	Gomez-Rodriguez Pilar, Soria Esther, Jin Yu, Caño Andrés, Llorente Irene, Cuadrado Alexander, Mariscal-Jiménez Antonio, Petford-Long Amanda K., Serna Rosalía, Gonzalo José
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	ag nanoparticles europium oxide photoluminescence plasmonic-luminescent nanostructures surface plasmon resonance white light leds Physics QC1-999
Acceso en línea:	https://doaj.org/article/885c415d5483498fa5048fbbaa667837
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spelling	oai:doaj.org-article:885c415d5483498fa5048fbbaa6678372021-12-05T14:10:56ZToward white light emission from plasmonic-luminescent hybrid nanostructures2192-861410.1515/nanoph-2021-0336https://doaj.org/article/885c415d5483498fa5048fbbaa6678372021-10-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0336https://doaj.org/toc/2192-8614We study the light emission of plasmonic-luminescent hybrid nanostructures consisting of Ag nanoparticles (NPs) embedded in europium oxide (EuOX). The Ag NPs present a bidimensional organization in the nanostructures and they optically behave as oblate spheroids. The photoluminescence (PL) spectral response of the nanostructures evolves from a narrow red emission characteristic of Eu3+ ions in absence of Ag NPs to a broad blue-green emission band associated with Eu2+ ions when the layer of Ag NPs is present. This behavior is not related to a change in the Eu2+/Eu3+ ratio, which is verified by compositional analysis. Instead, a detailed investigation of the PL emission of the nanostructures suggests that the coupling of the Ag NPs to the Eu2+ ions present in the EuOX layer, which manifests itself in an efficient sensitization of these ions, enhances their broad visible emission. In particular, the longitudinal mode of the Ag NPs surface plasmon is considered to be responsible for the efficient energy transfer for the non-normal incidence excitation PL configuration used. Finally, the use of a capping amorphous Al2O3 layer allows improving the robustness of hybrid nanostructures and further enhances their PL emission. These findings provide a new path to actively control the selective excitation of Eu2+ and Eu3+ ions via a controlled coupling with the surface plasmon resonance modes of the Ag NPs and points to these nanostructures as promising building blocks for the development of integrable white light sources.Gomez-Rodriguez PilarSoria EstherJin YuCaño AndrésLlorente IreneCuadrado AlexanderMariscal-Jiménez AntonioPetford-Long Amanda K.Serna RosalíaGonzalo JoséDe Gruyterarticleag nanoparticleseuropium oxidephotoluminescenceplasmonic-luminescent nanostructuressurface plasmon resonancewhite light ledsPhysicsQC1-999ENNanophotonics, Vol 10, Iss 16, Pp 3995-4007 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ag nanoparticles europium oxide photoluminescence plasmonic-luminescent nanostructures surface plasmon resonance white light leds Physics QC1-999
spellingShingle	ag nanoparticles europium oxide photoluminescence plasmonic-luminescent nanostructures surface plasmon resonance white light leds Physics QC1-999 Gomez-Rodriguez Pilar Soria Esther Jin Yu Caño Andrés Llorente Irene Cuadrado Alexander Mariscal-Jiménez Antonio Petford-Long Amanda K. Serna Rosalía Gonzalo José Toward white light emission from plasmonic-luminescent hybrid nanostructures
description	We study the light emission of plasmonic-luminescent hybrid nanostructures consisting of Ag nanoparticles (NPs) embedded in europium oxide (EuOX). The Ag NPs present a bidimensional organization in the nanostructures and they optically behave as oblate spheroids. The photoluminescence (PL) spectral response of the nanostructures evolves from a narrow red emission characteristic of Eu3+ ions in absence of Ag NPs to a broad blue-green emission band associated with Eu2+ ions when the layer of Ag NPs is present. This behavior is not related to a change in the Eu2+/Eu3+ ratio, which is verified by compositional analysis. Instead, a detailed investigation of the PL emission of the nanostructures suggests that the coupling of the Ag NPs to the Eu2+ ions present in the EuOX layer, which manifests itself in an efficient sensitization of these ions, enhances their broad visible emission. In particular, the longitudinal mode of the Ag NPs surface plasmon is considered to be responsible for the efficient energy transfer for the non-normal incidence excitation PL configuration used. Finally, the use of a capping amorphous Al2O3 layer allows improving the robustness of hybrid nanostructures and further enhances their PL emission. These findings provide a new path to actively control the selective excitation of Eu2+ and Eu3+ ions via a controlled coupling with the surface plasmon resonance modes of the Ag NPs and points to these nanostructures as promising building blocks for the development of integrable white light sources.
format	article
author	Gomez-Rodriguez Pilar Soria Esther Jin Yu Caño Andrés Llorente Irene Cuadrado Alexander Mariscal-Jiménez Antonio Petford-Long Amanda K. Serna Rosalía Gonzalo José
author_facet	Gomez-Rodriguez Pilar Soria Esther Jin Yu Caño Andrés Llorente Irene Cuadrado Alexander Mariscal-Jiménez Antonio Petford-Long Amanda K. Serna Rosalía Gonzalo José
author_sort	Gomez-Rodriguez Pilar
title	Toward white light emission from plasmonic-luminescent hybrid nanostructures
title_short	Toward white light emission from plasmonic-luminescent hybrid nanostructures
title_full	Toward white light emission from plasmonic-luminescent hybrid nanostructures
title_fullStr	Toward white light emission from plasmonic-luminescent hybrid nanostructures
title_full_unstemmed	Toward white light emission from plasmonic-luminescent hybrid nanostructures
title_sort	toward white light emission from plasmonic-luminescent hybrid nanostructures
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/885c415d5483498fa5048fbbaa667837
work_keys_str_mv	AT gomezrodriguezpilar towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT soriaesther towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT jinyu towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT canoandres towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT llorenteirene towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT cuadradoalexander towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT mariscaljimenezantonio towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT petfordlongamandak towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT sernarosalia towardwhitelightemissionfromplasmonicluminescenthybridnanostructures AT gonzalojose towardwhitelightemissionfromplasmonicluminescenthybridnanostructures
_version_	1718371552541540352

Toward white light emission from plasmonic-luminescent hybrid nanostructures

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