Enhanced Luminescence of InGaN Quantum Well Structures with Localized Surface Plasmon by Using Sputter-Fabricated Ag Nanoparticles in an Ionic Liquid

Won Wook Lee; Alexander Y. Polyakov; Taehwan Kim; In Hwan Lee

doi:10.1002/pssa.201800516

Enhanced Luminescence of InGaN Quantum Well Structures with Localized Surface Plasmon by Using Sputter-Fabricated Ag Nanoparticles in an Ionic Liquid

Won Wook Lee, Alexander Y. Polyakov, Taehwan Kim, In Hwan Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Small, uniform Ag nanoparticles (NPs) in ionic liquids (ILs) are synthesized via simple sputtering route. The NPs embedded in polymer film are coated on top of InGaN/GaN active multiple quantum-well light-emitting structures and their optical characteristics are compared. The InGaN structures coated with Ag NPs show a significant increase in photoluminescence efficiency, mainly caused by localized surface plasmon (LSPs) coupling. Time-resolved (TR) photoluminescence analysis demonstrates that the coupling efficiency is 47.2%. The increased luminescence is caused by good energy matching between the surface plasmon and the light emitter. The authors believe that present work takes a first step to utilize the advantages of metal NPs synthesized in ILs and has a great potential for use in various optoelectronic devices.

Original language	English
Article number	1800516
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	215
Issue number	24
DOIs	https://doi.org/10.1002/pssa.201800516
Publication status	Published - 2018 Dec 19

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017R1A2B3006141).

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

ionic liquid
localized surface plasmons
metal nanoparticles
photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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10.1002/pssa.201800516

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Enhanced Luminescence of InGaN Quantum Well Structures with Localized Surface Plasmon by Using Sputter-Fabricated Ag Nanoparticles in an Ionic Liquid. / Lee, Won Wook; Polyakov, Alexander Y.; Kim, Taehwan et al.
In: Physica Status Solidi (A) Applications and Materials Science, Vol. 215, No. 24, 1800516, 19.12.2018.

Research output: Contribution to journal › Article › peer-review

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abstract = "Small, uniform Ag nanoparticles (NPs) in ionic liquids (ILs) are synthesized via simple sputtering route. The NPs embedded in polymer film are coated on top of InGaN/GaN active multiple quantum-well light-emitting structures and their optical characteristics are compared. The InGaN structures coated with Ag NPs show a significant increase in photoluminescence efficiency, mainly caused by localized surface plasmon (LSPs) coupling. Time-resolved (TR) photoluminescence analysis demonstrates that the coupling efficiency is 47.2%. The increased luminescence is caused by good energy matching between the surface plasmon and the light emitter. The authors believe that present work takes a first step to utilize the advantages of metal NPs synthesized in ILs and has a great potential for use in various optoelectronic devices.",

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AU - Kim, Taehwan

AU - Lee, In Hwan

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017R1A2B3006141). Publisher Copyright: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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AB - Small, uniform Ag nanoparticles (NPs) in ionic liquids (ILs) are synthesized via simple sputtering route. The NPs embedded in polymer film are coated on top of InGaN/GaN active multiple quantum-well light-emitting structures and their optical characteristics are compared. The InGaN structures coated with Ag NPs show a significant increase in photoluminescence efficiency, mainly caused by localized surface plasmon (LSPs) coupling. Time-resolved (TR) photoluminescence analysis demonstrates that the coupling efficiency is 47.2%. The increased luminescence is caused by good energy matching between the surface plasmon and the light emitter. The authors believe that present work takes a first step to utilize the advantages of metal NPs synthesized in ILs and has a great potential for use in various optoelectronic devices.

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Enhanced Luminescence of InGaN Quantum Well Structures with Localized Surface Plasmon by Using Sputter-Fabricated Ag Nanoparticles in an Ionic Liquid

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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