Enhanced Luminescence of InGaN Quantum Well Structures with Localized Surface Plasmon by Using Sputter-Fabricated Ag Nanoparticles in an Ionic Liquid
- Authors
- Lee, Won-Wook; Polyakov, Alexander Y.; Kim, Taehwan; Lee, In-Hwan
- Issue Date
- 12월-2018
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- ionic liquid; localized surface plasmons; metal nanoparticles; photoluminescence
- Citation
- PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v.215, no.24
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
- Volume
- 215
- Number
- 24
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/71353
- DOI
- 10.1002/pssa.201800516
- ISSN
- 1862-6300
- 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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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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