COMBUSTION SYNTHESIS AND CHARACTERIZATION OF DYSPROSIUM NANO-COMPOSITE MELILITE FOR DIODE APPLICATIONS

MOSIORI, CLIFF ORORI

doi:10.56557/japsi/2022/v14i28046

COMBUSTION SYNTHESIS AND CHARACTERIZATION OF DYSPROSIUM NANO-COMPOSITE MELILITE FOR DIODE APPLICATIONS

MOSIORI, CLIFF ORORI

Journal of Applied Physical Science International, Page 53-66
DOI: 10.56557/japsi/2022/v14i28046
Published: 31 December 2022

Abstract

Light emitting nano-scale materials have attracted a great interest in recent days. In view of this, a nanocrystal solid luminescent composite material was prepared using combustion processing technique and its identity was analyzed and further investigated. The precursor reagents were measured using the single pan analytical balance. A sample was synthesized and its functional group was identified using the FTIR spectroscopy and XRD studies as having similar properties to those in Batch No. JCPDS No. 77-1149 and in Base Code AMCSD 0008032. Its photoluminescence spectrum identified peaks located at 476 nm, 578 nm and 615 nm that were attributed to electronic transition from ⁴F_9/2 to ⁶H_15/2, from ⁴F_9/2 to ⁶H_13/2 and from ⁴F_9/2 to ⁶H_11/2 respectively as the finger blue-prints of dysprosium [Dy³⁺] ion. Its crystalline sizes and strains were calculated using the Debay Scherrer’s equation and analyzed using the UDM model. The findings showed that the prepared sample had a superior homogeneity and further that the Dy³⁺ influenced its formation. The melllite sample was identified to be Ca₂MgSi₂O₇:Dy³⁺. Further analysis on the sample suggested that was a potential white light emitting luminescent material just like Ca₂MgSi₂O₇:Tb³⁺ phosphor and Sr₂MgSi₂O₇:Dy³⁺ phosphor.

Keywords:

Debay Scherrer’s
XRD
UDM model
strain
photoluminescence
Ca2MgSi2O7:Dy3

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How to Cite

ORORI, M. C. (2022). COMBUSTION SYNTHESIS AND CHARACTERIZATION OF DYSPROSIUM NANO-COMPOSITE MELILITE FOR DIODE APPLICATIONS. Journal of Applied Physical Science International, 14(2), 53-66. https://doi.org/10.56557/japsi/2022/v14i28046

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