A team from the University of California at Santa Barbara has used NOMAD, the new Nanoscale-Ordered Materials Diffractometer at the Spallation Neutron Source at Oak Ridge National Laboratory, to study the potential of a green-yellow emitting oxyfluoride solid solution phosphor for high-quality solid-state lighting. Solid-state white lighting offers many advantages over traditional lighting, including longer life, reduced energy consumption and an environmentally friendly design without the need for mercury. Researchers used a combination of density functional theory, synchrotron X-ray and neutron powder diffraction and total scattering, and electron paramagnetic resonance to discover that chemical substitutions play a crucial role in tuning the optical properties of the newly developed phosphor.
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