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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] | Wang, R. (Wang, R..) [7] | Xie, Y. (Xie, Y..) [8] | Song, J. (Song, J..) [9] | Yan, Q. (Yan, Q..) [10] | Guo, W. (Guo, W..) [11] | Sun, J. (Sun, J..) [12]

Indexed by:

Scopus

Abstract:

In the field of quantum dot (QD)-based micro-light-emitting diode (µLED) full-color display technology, achieving high color conversion efficiency (CCE) is one of the key performance indicators. In this work, a µLED architecture is presented that incorporates an optimized nanorod array, with QDs and nanogapped gold nanoparticles (AuNNPs) embedded in the inter-rod gaps. By harnessing non-radiative energy transfer (NRET) and localized surface plasmon resonance (LSPR), the absorption and utilization of quantum well (QW) energy by the QDs are significantly enhanced. To ensure efficient current spreading and uniform light emission, graphene is employed as a transparent conductive layer to interconnect the nanorods. As graphene can transfer photogenerated carriers to the QDs, enhancing their quantum yield, it is also introduced as an intermediate insertion layer and support layer, allowing the integration of a second layer of QDs and AuNNPs on the light-emitting surface. This design maintains the electrical performance of the nanorod µLED while achieving ultra-high CCE. Experimental results demonstrate that the proposed µLED with nanorod structures and AuNNPs achieves a maximum CCE of 94%, representing a 102% improvement compared to conventional planar µLEDs. These findings offer promising insights for advancing high-performance, full-color µLED display technologies through nanoscale engineering. © 2025 The Author(s). Laser & Photonics Reviews published by Wiley-VCH GmbH.

Keyword:

graphene local surface plasmon micro-LED non-radiative energy quantum dot

Community:

  • [ 1 ] [Fang A.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Li Q.]College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, 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 ] [Wang R.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 8 ] [Xie Y.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 9 ] [Song J.]State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 10010, China
  • [ 10 ] [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
  • [ 11 ] [Guo W.]Key Laboratory of Optoelectronics Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 12 ] [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
  • [ 13 ] [Sun J.]Quantum Device Physics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, 41296, Sweden

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Source :

Laser and Photonics Reviews

ISSN: 1863-8880

Year: 2025

9 . 8 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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