Efficiency enhancement of micro-light-emitting diode with shrinking size by localized surface plasmons coupling - Details

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The　external　quantum　efficiency　(EQE)　enhancement　of　different　sized　GaN　micro-light-emitting　diodes　(μLEDs)　by　using　localized　surface　plasmons　(LSPs)　have　been　studied.　Silver　nanoparticles　(Ag　NPs)　are　attached　to　the　sidewalls　of　μLEDs　by　spin-coating　so　as　to　be　effectively　coupled　with　the　multiple　quantum　well　(MQW)　of　μLEDs　and　generate　the　LSPs.　In　the　μLEDs　with　20　×　20　μm2　large　mesas,　the　LSPs　can　effectively　inhibit　the　efficiency　droop.　Compared　to　the　μLED　samples　without　the　LSPs　coupling,　the　EQE　has　been　enhanced　by　about　8%　at　a　high　current　density　of　20,000　A/cm2.　This　work　confirms　the　effectiveness　of　the　LSPs　technology　in　improving　the　μLED　performances,　which　is　originally　practiced　only　on　the　basal　faces　of　conventional　LEDs.　©　The　Author(s),　under　exclusive　licence　to　Springer-Verlag　GmbH　Germany,　part　of　Springer　Nature　2024.

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[ 1 ] [Du Z.]School of Physics and Electronic Information, Weifang University, Weifang, 261061, China
[ 2 ] [Sun J.]College of Physics and Information Engineering, Fuzhou University, and Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350100, China
[ 3 ] [Sun J.]Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, 41296, Sweden
[ 4 ] [Feng H.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Tang P.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Guo W.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
[ 7 ] [Han K.]School of Physics and Electronic Information, Weifang University, Weifang, 261061, China
[ 8 ] [Chen E.]College of Physics and Information Engineering, Fuzhou University, and Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350100, China
[ 9 ] [Guo T.]College of Physics and Information Engineering, Fuzhou University, and Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350100, China
[ 10 ] [Song J.]MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 11 ] [Yan Q.]College of Physics and Information Engineering, Fuzhou University, and Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350100, China

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Applied Physics B: Lasers and Optics

ISSN： 0946-2171

Year： 2024

Issue： 3

Volume： 130

2 . 0 0 0

JCR@2023

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SCOPUS Cited Count： 1

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 3

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