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author:

Fang, Aoqi (Fang, Aoqi.) [1] | Li, Qingqing (Li, Qingqing.) [2] | Liu, Jixin (Liu, Jixin.) [3] | Du, Zaifa (Du, Zaifa.) [4] | Tang, Penghao (Tang, Penghao.) [5] | Xu, Hao (Xu, Hao.) [6] | Wang, Rongjing (Wang, Rongjing.) [7] | Xie, Yiyang (Xie, Yiyang.) [8] | Song, Jibin (Song, Jibin.) [9] | Yan, Qun (Yan, Qun.) [10] | Guo, Weiling (Guo, Weiling.) [11] | Sun, Jie (Sun, Jie.) [12]

Indexed by:

Scopus SCIE

Abstract:

In the field of quantum dot (QD)-based micro-light-emitting diode (mu LED) full-color display technology, achieving high color conversion efficiency (CCE) is one of the key performance indicators. In this work, a mu LED 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 mu LED while achieving ultra-high CCE. Experimental results demonstrate that the proposed mu LED with nanorod structures and AuNNPs achieves a maximum CCE of 94%, representing a 102% improvement compared to conventional planar mu LEDs. These findings offer promising insights for advancing high-performance, full-color mu LED display technologies through nanoscale engineering.

Keyword:

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

Community:

  • [ 1 ] [Fang, Aoqi]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Jixin]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Tang, Penghao]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Xu, Hao]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Rongjing]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Xie, Yiyang]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Guo, Weiling]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 8 ] [Li, Qingqing]Shandong Normal Univ, Collaborat Innovat Ctr Functionalized Probes Chem, Coll Chem Chem Engn & Mat Sci, Key Lab Mol & Nano Probes,Minist Educ, Jinan 250014, Peoples R China
  • [ 9 ] [Yan, Qun]Fuzhou Univ, Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350100, Peoples R China
  • [ 10 ] [Sun, Jie]Fuzhou Univ, Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350100, Peoples R China
  • [ 11 ] [Yan, Qun]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350100, Peoples R China
  • [ 12 ] [Sun, Jie]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350100, Peoples R China
  • [ 13 ] [Sun, Jie]Chalmers Univ Technol, Dept Microtechnol & Nanosci, Quantum Device Phys Lab, S-41296 Gothenburg, Sweden
  • [ 14 ] [Du, Zaifa]Weifang Univ, Sch Phys & Elect Informat, Weifang 261061, Peoples R China
  • [ 15 ] [Song, Jibin]Beijing Univ Chem Technol, Coll Chem, State Key Lab Chem Resource Engn, Beijing 10010, Peoples R China

Reprint 's Address:

  • [Guo, Weiling]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China;;[Sun, Jie]Fuzhou Univ, Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350100, Peoples R China;;[Sun, Jie]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350100, Peoples R China;;[Sun, Jie]Chalmers Univ Technol, Dept Microtechnol & Nanosci, Quantum Device Phys Lab, S-41296 Gothenburg, Sweden

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Source :

LASER & 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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