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author：

Fang, A. (Fang, A..) [1] | Li, Q. (Li, Q..) [2] | Liu, J. (Liu, J..) [3] | Du, Z. (Du, Z..) [4] | Tang, P. (Tang, P..) [5] | Xu, H. (Xu, H..) [6] | Xie, Y. (Xie, Y..) [7] | Song, J. (Song, J..) [8] | Zhang, K. (Zhang, K..) [9] | Yang, T. (Yang, T..) [10] | Yan, Q. (Yan, Q..) [11] | Guo, W. (Guo, W..) [12] | Sun, J. (Sun, J..) [13]

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Scopus

Abstract：

This　paper　reports　on　a　micropillar　micro-light-emitting　diode　(MP-μLED)　enhanced　by　a　graphene　conductive　layer　and　SiO2-coated　Ag　nanoparticles　(Ag/SiO2　NPs).　The　micropillar　structure　enables　direct　contact　between　Ag/SiO2　NPs　and　the　quantum　well　(QW),　leveraging　localized　surface　plasmon　resonance　(LSPR)　to　enhance　the　emission　of　QW.　The　SiO2　coating　on　Ag　serves　as　an　insulating　layer,　preventing　energy　leakage　through　electron　tunneling　between　QW-Ag　and　Ag-Ag　interfaces.　Graphene,　used　as　a　transparent　conductive　layer,　integrates　the　individual　micropillars　into　a　cohesive　structure,　ensuring　efficient　current　spreading　and　uniform　light　emission.　Compared　to　plane　μLEDs　of　the　same　mesa　size,　the　MP-μLED　with　graphene　transparent　electrodes　and　LSPR　enhancement　shows　an　improvement　of　44%　in　external　quantum　efficiency　(EQE)　and　45%　in　wall　plug　efficiency　(WPE)　at　a　current　density　of　1000　A/cm2.　This　study　demonstrates　the　significant　application　potential　of　LSPR　and　micropillar　structures　in　μLED　technology.　©　2025　The　Authors.　Published　by　American　Chemical　Society.

Keyword：

graphene localized surface plasmon resonance micro-LED micropillar

Community：

  • [ 1 ] [Fang A.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Li Q.]New Cornerstone Science Laboratory, MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Liu J.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Du Z.]School of Physics and Electronic Information, Weifang University, Weifang, 261061, China
  • [ 5 ] [Tang P.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Xu H.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 7 ] [Xie Y.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 8 ] [Song J.]State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 10010, China
  • [ 9 ] [Zhang K.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China and College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 10 ] [Yang T.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China and College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 11 ] [Yan Q.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China and College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 12 ] [Guo W.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 13 ] [Sun J.]Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China and College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 14 ] [Sun J.]Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, 41296, Sweden

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Source ：

ACS Photonics

ISSN： 2330-4022

Year： 2025

6 . 5 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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