Sol-gel synthesis, structural and optical properties of Pr3+-activated magnesium germanate phosphor

Autor:	Amba Mondal, Jairam Manam
Rok vydání:	2020
Předmět:	Materials science integumentary system chemistry Band gap Annealing (metallurgy) Magnesium Phase (matter) Doping Analytical chemistry chemistry.chemical_element Phosphor Germanate Sol-gel
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/5.0001178
Popis:	In the present work, we report the structural and optical properties of Pr3+doped magnesium germanate phosphor. The sample was prepared by citric acid assisted sol-gel synthesis method followed by high temperature annealing. The phase of the prepared phosphor changed with increasing annealing temperature as seen from XRD pattern. FESEM image showed quasi-spherical particles with an average size 220 nm. Band gap energy and Urbach energy were estimated using UV-Vis DRS spectrum. The PL spectrum showed peaks in greenish blue and prominent peak in reddish orange region. The color coordinates was calculated to be in reddish orange region.
Databáze:	OpenAIRE
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