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Investigation on the application of ZnO nanostructures to improve the optical performance of white light-emitting diodes

Telkomnika, 2021-06, Vol.19 (3), p.963-967 [Peer Reviewed Journal]

2021. This work is published under https://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1693-6930 ;EISSN: 2087-278X ;DOI: 10.12928/telkomnika.v19i3.16714

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  • Title:
    Investigation on the application of ZnO nanostructures to improve the optical performance of white light-emitting diodes
  • Author: Thi, My Hanh Nguyen ; That, Phung Ton ; Ngoc, Hoang Van
  • Subjects: Diffusers ; Efficiency ; Gallium nitrides ; Homogeneity ; Light emitting diodes ; Luminous intensity ; Morphology ; Nanoparticles ; Nanostructure ; Power ; Refractivity ; White light ; Zinc oxide
  • Is Part Of: Telkomnika, 2021-06, Vol.19 (3), p.963-967
  • Description: Analyses have not dug deeper into the impacts of different structures of these diffuser materials on the WLED performance [5, 19, 20]. [...]as there are not enough studies that provide thorough contents and specific guidance on this aspect, the process of identifying the appropriate nanoparticles to effectively enhance the color quality of WLED is very time-consuming. [...]it is possible to get many structures of ZnO by modification and control of the reaction conditions, for instances, time, temperature, and precursor concentration. The index of refraction of ZnO is 2.0 that is in between the 2.5 index of GaN and 1 of air, leading to the fact that WLEDs with ZnO has better gradient efficiency. Besides that, various researchers have been pointed out the benefit of doping ZnO into the GaN-based WLEDs, particularly with special nanostructures of ZnO, which is the enhancement of light extraction [25]. The improvement of light extraction efficiency was proved in these articles but the fact is that there are not many works on enhancing WLED optical performance with diffusers of ZnO morphologies which directly impact the homogeneity of both CCT and light intensity of WLED devices. [...]this paper purpose is to study the influences of ZnO particles consisting of the node-like ZnO (N-ZnO), sheet-like (S-ZnO), and rod-like ZnO (R-ZnO).
  • Publisher: Yogyakarta: Ahmad Dahlan University
  • Language: English
  • Identifier: ISSN: 1693-6930
    EISSN: 2087-278X
    DOI: 10.12928/telkomnika.v19i3.16714
  • Source: ProQuest Central
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