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作者:

Fang, Aoqi (Fang, Aoqi.) | Tang, Penghao (Tang, Penghao.) | Xie, Yiyang (Xie, Yiyang.) | Du, Zaifa (Du, Zaifa.) | Guo, Weiling (Guo, Weiling.) | Mei, Yu (Mei, Yu.) | Xu, Hao (Xu, Hao.) | Sun, Jie (Sun, Jie.)

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EI Scopus SCIE

摘要:

In this paper, a uniform nanorod (NR) array is etched onto the surface of Micro-Light-Emitting-Diodes (mu LEDs) and mix Ag nanoparticles (NPs) with QDs to fill the gaps between the nanorods. Simultaneously, the study utilizes graphene to connect individual nanorods and enhance current spreading. The nanorod array's structure significantly reduces the distance between the QDs and the quantum well (QW), reducing energy loss from the excitation light source through a non-radiative energy transfer (NRET) mechanism. Additionally, the Ag NPs function as localized surface plasmons (LSPs), further enhancing the CCE of QDs via the absorption resonance. In this study, the effects of two types of Ag NPs are compared with different absorption resonance peaks on device performance. The results demonstrate that Ag NPs with absorption resonance peaks matching the emission wavelength of QDs play a more crucial role in the system. This configuration achieves a CCE of 77.78% for mu LEDs with nanorod arrays, operating at a current of 10 mA. Compared to the conventional mu LED structure with QDs only on the surface, the proposed method improves the CCE of mu LEDs by an impressive 86.5%. This outcome underscores the significant contribution of the NR structure and LSPs in enhancing the CCE of QD-mu LEDs. A hybrid quantum dot nanorod Micro-LED (QD-NR-mu LED) with LSPs assistance to enhance the CCE of hybrid mu LEDs. This study significantly improves the color conversion efficiency of QD-mu LEDs through non-radiative energy transfer and localized surface plasmon coupling, paving the way for full-color display of mu LEDs. image

关键词:

localized surface plasmons micro LED quantum Dots non-radiative energy transfer

作者机构:

  • [ 1 ] [Fang, Aoqi]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Tang, Penghao]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Xie, Yiyang]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Guo, Weiling]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 5 ] [Mei, Yu]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Xu, Hao]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Du, Zaifa]Weifang Univ, Sch Phys & Elect Informat, Weifang 261061, Peoples R China
  • [ 8 ] [Sun, Jie]Fuzhou Univ, Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350100, Peoples R China
  • [ 9 ] [Sun, Jie]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350100, Peoples R China
  • [ 10 ] [Sun, Jie]Chalmers Univ Technol, Dept Microtechnol & Nanosci, Quantum Device Phys Lab, S-41296 Gothenburg, Sweden

通讯作者信息:

  • [Guo, Weiling]Beijing Univ Technol, Key Lab Optoelect Technol, Beijing 100124, Peoples R China;;[Du, Zaifa]Weifang Univ, Sch Phys & Elect Informat, Weifang 261061, 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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来源 :

ADVANCED OPTICAL MATERIALS

ISSN: 2195-1071

年份: 2024

期: 19

卷: 12

9 . 0 0 0

JCR@2022

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