Jump to main content
Jump to site search

Issue 80, 2016, Issue in Progress
Previous Article Next Article

Performance improvement by alumina coatings on Y3Al5O12:Ce3+ phosphor powder deposited using atomic layer deposition in a fluidized bed reactor

Author affiliations

Abstract

To improve the thermal stability, Al2O3 has been successfully coated on a Y3Al5O12:Ce3+ (YAG:Ce) phosphor powder host by using the Atomic Layer Deposition (ALD) approach in a fluidized bed reactor. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray spectroscopy (EDX) analysis indicate that coating an Al2O3 thin layer by ALD is highly feasible. The luminescence properties (such as excitation and emission as well as quantum efficiency and UV-absorption of the coated YAG:Ce phosphor) were systematically analysed, with the further examination of the thermal resistance characteristics. The Al2O3 thin layer coating with precisely controlled thickness by ALD can obviously improve the luminescence intensity and greatly enhances the thermal stability of the YAG:Ce phosphor. It is suggested that the alumina coating with tailoring thickness seems not only to act like a barrier to decrease the thermal quenching, but also as a great help to promote the light absorption and transfer.

Graphical abstract: Performance improvement by alumina coatings on Y3Al5O12:Ce3+ phosphor powder deposited using atomic layer deposition in a fluidized bed reactor

Back to tab navigation

Publication details

The article was received on 19 May 2016, accepted on 27 Jul 2016 and first published on 08 Aug 2016


Article type: Paper
DOI: 10.1039/C6RA12983H
Citation: RSC Adv., 2016,6, 76454-76462
  •   Request permissions

    Performance improvement by alumina coatings on Y3Al5O12:Ce3+ phosphor powder deposited using atomic layer deposition in a fluidized bed reactor

    Z. Zhou, N. Zhou, X. Lu, M. T. Kate, D. Valdesueiro, J. Ruud van Ommen and H. T. (. Hintzen, RSC Adv., 2016, 6, 76454
    DOI: 10.1039/C6RA12983H

Search articles by author

Spotlight

Advertisements