Jump to main content
Jump to site search


A rate equation model for the energy transfer mechanism of a novel multi-color-emissive phosphor, Ca1.624Sr0.376Si5O3N6:Eu2+

Author affiliations

Abstract

Multi-color emissions (or broadband emissions) from a single-phase phosphor with a single activator are an unfamiliar idea compared with those from multi-color-center materials. A single activator that is located in different crystallographic sites of a single-phase phosphor, however, could lead to multimodal emission peaks for multi-color (or broadband) emissions. The discovery of a single-phase-single-activator-broadband-phosphor is rare, and it is regarded as difficult to accomplish. The present investigation introduces a novel single-phase-single-activator-broadband-phosphor (Ca1.624Sr0.376Si5O3N6:Eu2+) and provides an in-depth examination of the energy transfer between different crystallographic sites which is the governing mechanism for the broadband emissions. Structural analysis is backed up by density functional theory (DFT) calculations, which validate the structural model of the discovered novel phosphor. Rate-equation modeling is introduced based on particle swarm optimization (PSO) to provide a complete quantitative analysis for the mechanism of the energy transfer.

Graphical abstract: A rate equation model for the energy transfer mechanism of a novel multi-color-emissive phosphor, Ca1.624Sr0.376Si5O3N6:Eu2+

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Aug 2019, accepted on 02 Oct 2019 and first published on 02 Oct 2019


Article type: Research Article
DOI: 10.1039/C9QI01002E
Inorg. Chem. Front., 2019, Advance Article

  •   Request permissions

    A rate equation model for the energy transfer mechanism of a novel multi-color-emissive phosphor, Ca1.624Sr0.376Si5O3N6:Eu2+

    J. H. Lee, S. P. Singh, M. Kim, M. Pyo, W. B. Park and K. Sohn, Inorg. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QI01002E

Search articles by author

Spotlight

Advertisements