Advancing Materials Science using Resonant Inelastic Scattering – Year Two

This program will focus on the detailed characterization of the luminescence of a series of next-generation doped phosphors for lighting applications. These narrow-band-emitting, high-efficiency phosphors have demonstrated outstanding potential for use in phosphor-converted light emitting diodes. This technology is poised to replace traditional incandescent lights and it is expected to lead to an outstanding reduction of 15% in global energy consumption in the lighting sector with substantially greater long-term reductions. This reduction in energy consumption is driven by the development of new high-efficiency phosphors.
In these materials a host material is doped with rare-earth ions to generate emission in the visible spectrum. The emission can be tuned by the choice of host crystal to produce light of the desired wavelength. However, the interplay of host lattice and dopant is complex, difficult to measure and even more difficult to model.
The postdoc will use a new calculation tool to compute the emission spectra of various phosphors in the visible spectral range. The comparison of modelled and measured emission spectra will allow a model to be developed that ultimately will inform the design of new tailored LED materials with improved performance like less energy consumption, better stability, and better color. The partner organization is Canada’s only synchrotron, the Canadian Light Source where the measurements will be performed at the REIXS beamline.

Faculty Supervisor:

Alexander Moewes

Student:

Partner:

Canadian Light Source

Discipline:

Physics

Sector:

Nanotechnology; Quantum Science; Energy and Utilities

University:

University of Saskatchewan

Program: