Get access

Full Visible Range Covering InP/ZnS Nanocrystals with High Photometric Performance and Their Application to White Quantum Dot Light-Emitting Diodes

Authors

  • Xuyong Yang,

    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    Search for more papers by this author
  • Dewei Zhao,

    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    Search for more papers by this author
  • Kheng Swee Leck,

    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    Search for more papers by this author
  • Swee Tiam Tan,

    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    Search for more papers by this author
  • Yu Xin Tang,

    1. School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    Search for more papers by this author
  • Junliang Zhao,

    1. Department of Applied Physics, College of Science, and Tianjin Key Laboratory of Low-Dimensional, Functional Material Physics and Fabrication Technology, Tianjin University, Tianjin 300072, China
    Search for more papers by this author
  • Hilmi Volkan Demir,

    Corresponding author
    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    2. School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    3. Department of Electrical and Electronics Engineering, Department of Physics, UNAM–Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara, 06800, Turkey
    • Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore.
    Search for more papers by this author
  • Xiao Wei Sun

    Corresponding author
    1. Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore
    • Luminous! Center of Excellence for Semiconductor, Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore.
    Search for more papers by this author

Abstract

original image

High-quality InP/ZnS core–shell nanocrystals with luminescence tunable over the entire visible spectrum have been achieved by a facile one-pot solvothermal method. These nanocrystals exhibit high quantum yields (above 60%), wide emission spectrum tunability and excellent photostability. The FWHM can be as narrow as 38 nm, which is close to that of CdSe nanocrystals. Also, making use of these nanocrystals, we further demonstrated a cadmium-free white QD-LED with a high color rendering index of 91. The high-performance of the resulting InP/ZnS NCs coupled with their low intrinsic toxicity may further promote industrial applications of these NC emitters.

Get access to the full text of this article

Ancillary