Investigation on photoluminescence properties and defect chemistry of GdAlO3:Dy3+ Ba2+ phosphors
Source abstract
Abstract
Abstract GdAlO 3 :Dy 3+ Ba 2+ phosphors are synthesized by citrate-based sol-gel method. Photoluminescence and positron annihilation studies are used to investigate the emission and defect chemistry of the phosphors respectively. The strong yellow (Dy 3+ ) emission properties of phosphors are discussed for various concentrations of Dy 3+ ions. Upon the addition of Ba 2+ ion, an enhancement in emission intensity is observed due to the lattice distortions around Dy 3+ ion. The positron studies indicate the presence of defects at crystallite boundaries, vacancy clusters and large voids in the materials. The influence of Ba 2+ ion on the photoluminescence and lattice distortion around Dy 3+ is also explored.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Ammonia Synthesis and Nitrogen Reduction · Muon and positron interactions and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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