Morphological and photoluminescence study of NaSrB5O9: Tb3+nanocrystalline phosphor
Source abstract
Abstract
Nanocrystalline green-emitting phosphor NaSrB5O9: Tb3+ was synthesized by a facile and time-efficient modified combustion method. The phosphor was characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, nanoparticle tracking analysis (NTA), field emission scanning electron microscopy (FESEM) and photoluminescence excitation (PLE) and emission (PL) spectroscopy. XRD revealed the proper phase formation. Williamson–Hall (W-H) analysis gave the crystallite sizes and lattice strain due to peak broadening. A nanoplate-like morphology was observed in the FESEM analysis. Upon excitation by 217 nm UV light, the phosphor showed characteristic green emission peaks at 487 nm, 543 nm, 596 nm and 622 nm corresponding to the 5D4→7F6, 5D4→7F5, 5D4→7F4 and 5D4→7F3 transitions, respectively. A concentration quenching effect was observed and the critical concentration was found to be 3 mol % of Terbium.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Nuclear materials and radiation effects · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, R. J. College, Mumbai, India
Department of Physics, Shri Shivaji Science College, Amravati, India
Department of Physics, SGB Amravati University, Amravati, India
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