Journal of Semiconductors, Volume. 41, Issue 3, 032301(2020)

High performance GaN-based hybrid white micro-LEDs integrated with quantum-dots

Feifan Xu1,2, Xu Cen1,2, Bin Liu1,2, Danbei Wang1,2, Tao Tao1,2, Ting Zhi3, Qi Wang1,2, Zili Xie1,2, Yugang Zhou1,2, Youdou Zheng1,2, and Rong Zhang1,2,4
Author Affiliations
  • 1Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China
  • 2Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210023, China
  • 3College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • 4Xiamen University, Xiamen 316005, China
  • show less
    Figures & Tables(4)
    (Color online) (a) Epitaxial structure of blue LED. (b) The micron-pillar array structures after lithography and ICP etching. (c) N-type and P-type Cr/Au electrodes are manufactured in only one step. (d) Micron-pillar structures with the CIS ((CuInS2-ZnS)/ZnS) core-shell quantum dots.
    (Color online) (a) Bird’s eye view microscope image of the blue micron-pillar LED array. (b) The enlarged picture of micron-pillar structures. (c) SEM image of the blue micron-pillar LED array. (d) The cross-sectional view SEM image of blue micron-pillar LED array.
    (Color online) (a) I–V characteristics of one hybrid micro-LED. The inset is the leakage I–V curve in semi-log scale. (b) The EL spectra of the hybrid white micro-LED array at the different injection current density. (c) The picture of hybrid white micro-LED array emission at the injection current of 0.1 mA. (d) The picture of hybrid white micro-LED array emission at the injection current of 1 mA.
    (Color online) (a) The PL spectra of CIS quantum dots and one pixel in the hybrid white micro-LEDs array. (b) The locations of hybrid white LEDs in the CIE 1931 chromaticity diagram.
    Tools

    Get Citation

    Copy Citation Text

    Feifan Xu, Xu Cen, Bin Liu, Danbei Wang, Tao Tao, Ting Zhi, Qi Wang, Zili Xie, Yugang Zhou, Youdou Zheng, Rong Zhang. High performance GaN-based hybrid white micro-LEDs integrated with quantum-dots[J]. Journal of Semiconductors, 2020, 41(3): 032301

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Articles

    Received: Oct. 3, 2019

    Accepted: --

    Published Online: Sep. 10, 2021

    The Author Email:

    DOI:10.1088/1674-4926/41/3/032301

    Topics