Facile synthesis, vibrational, optical and improved luminescence properties analysis of Ca2KZn2V3O12 phosphor

A self-activated Ca2KZn2V3O12 (CKZVO) phosphor was synthesized by the solid state reaction method under different calcination temperatures. A high crystalline single-phased CKZVO material occurred at 600 °C belongs to the cubic structure with Ia 3 ¯ d space group. The vibrational modes were characte...

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Bibliographic Details
Published in:Materials research express 2019-11, Vol.6 (11)
Main Authors: Jeyakumaran, T, Venkatesh Bharathi, N, Sriramachandran, P, Shanmugavel, R, Ramaswamy, S
Format: Article
Language:English
Subjects:
photoluminescence
self-activated
solid-state reaction
white LEDs
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Summary:A self-activated Ca2KZn2V3O12 (CKZVO) phosphor was synthesized by the solid state reaction method under different calcination temperatures. A high crystalline single-phased CKZVO material occurred at 600 °C belongs to the cubic structure with Ia 3 ¯ d space group. The vibrational modes were characterized by IR and Raman spectra. All the samples consist of intense absorption spectra in UV region owing to charge transfer of (VO4)3− tetrahedral group and the band gap energy of the single-phased CKZVO phosphor was found to be 3.2 eV. Photoluminescence broad emission spectrum ranging from 400 to 700 nm, ascribing to the charge transfer in (VO4)3− tetrahedral group. The colorific properties of the single-phased CKZVO phosphor was investigated and reported. Ultimately, the device performance showed that the self-activated Ca2KZn2V3O12 phosphor served as a potentially applicable candidate in UV chip excited white LED applications.
ISSN:2053-1591
DOI:10.1088/2053-1591/ab51b8