Synthesis and luminescent properties of nanocrystalline CaYAlO4: Sm3+ phosphors

Myung Sub Kim; Jae Su Yu

doi:10.1002/pssb.201248464

Synthesis and luminescent properties of nanocrystalline CaYAlO₄: Sm³⁺ phosphors

Myung Sub Kim
, Jae Su Yu

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Nanocrystalline CaYAlO₄:Sm³⁺ phosphors were synthesized by a citrate-based sol-gel method. After annealing at 1000°C, the closely packed particles with pure tetragonal crystalline structure were observed. The photoluminescence spectra exhibited the emission peaks of 565nm (⁴G_5/2→⁶H_5/2), 600nm (⁴G_5/2→⁶H_7/2), and 650nm (⁴G_5/2→⁶H_9/2) under an excitation wavelength of 409nm. The optimum concentration of CaYAlO₄:Sm³⁺ phosphors was found to be 2mol%. The lifetimes were measured to analyze the effect of Sm³⁺ concentration in CaYAlO₄ host lattice. And similar emissions of cathode-luminescence (CL) spectra were also observed. By increasing the accelerating voltage from 1 to 5kV, the CL intensity was linearly increased.

Original language	English
Pages (from-to)	374-377
Number of pages	4
Journal	Physica Status Solidi (B): Basic Research
Volume	250
Issue number	2
DOIs	https://doi.org/10.1002/pssb.201248464
Publication status	Published - Feb 2013

Keywords

Luminescence
Luminescent decay profile
Sol-gel method

Access to Document

10.1002/pssb.201248464

Cite this

@article{dae618e296aa4823b065db4f70e3d7f8,

title = "Synthesis and luminescent properties of nanocrystalline CaYAlO4: Sm3+ phosphors",

abstract = "Nanocrystalline CaYAlO4:Sm3+ phosphors were synthesized by a citrate-based sol-gel method. After annealing at 1000°C, the closely packed particles with pure tetragonal crystalline structure were observed. The photoluminescence spectra exhibited the emission peaks of 565nm (4G5/2→6H5/2), 600nm (4G5/2→6H7/2), and 650nm (4G5/2→6H9/2) under an excitation wavelength of 409nm. The optimum concentration of CaYAlO4:Sm3+ phosphors was found to be 2mol\%. The lifetimes were measured to analyze the effect of Sm3+ concentration in CaYAlO4 host lattice. And similar emissions of cathode-luminescence (CL) spectra were also observed. By increasing the accelerating voltage from 1 to 5kV, the CL intensity was linearly increased.",

keywords = "Luminescence, Luminescent decay profile, Sol-gel method",

author = "Kim, \{Myung Sub\} and Yu, \{Jae Su\}",

year = "2013",

month = feb,

doi = "10.1002/pssb.201248464",

language = "English",

volume = "250",

pages = "374--377",

journal = "Physica Status Solidi (B): Basic Research",

issn = "0370-1972",

publisher = "John Wiley and Sons Inc.",

number = "2",

}

TY - JOUR

T1 - Synthesis and luminescent properties of nanocrystalline CaYAlO4

T2 - Sm3+ phosphors

AU - Kim, Myung Sub

AU - Yu, Jae Su

PY - 2013/2

Y1 - 2013/2

N2 - Nanocrystalline CaYAlO4:Sm3+ phosphors were synthesized by a citrate-based sol-gel method. After annealing at 1000°C, the closely packed particles with pure tetragonal crystalline structure were observed. The photoluminescence spectra exhibited the emission peaks of 565nm (4G5/2→6H5/2), 600nm (4G5/2→6H7/2), and 650nm (4G5/2→6H9/2) under an excitation wavelength of 409nm. The optimum concentration of CaYAlO4:Sm3+ phosphors was found to be 2mol%. The lifetimes were measured to analyze the effect of Sm3+ concentration in CaYAlO4 host lattice. And similar emissions of cathode-luminescence (CL) spectra were also observed. By increasing the accelerating voltage from 1 to 5kV, the CL intensity was linearly increased.

AB - Nanocrystalline CaYAlO4:Sm3+ phosphors were synthesized by a citrate-based sol-gel method. After annealing at 1000°C, the closely packed particles with pure tetragonal crystalline structure were observed. The photoluminescence spectra exhibited the emission peaks of 565nm (4G5/2→6H5/2), 600nm (4G5/2→6H7/2), and 650nm (4G5/2→6H9/2) under an excitation wavelength of 409nm. The optimum concentration of CaYAlO4:Sm3+ phosphors was found to be 2mol%. The lifetimes were measured to analyze the effect of Sm3+ concentration in CaYAlO4 host lattice. And similar emissions of cathode-luminescence (CL) spectra were also observed. By increasing the accelerating voltage from 1 to 5kV, the CL intensity was linearly increased.

KW - Luminescence

KW - Luminescent decay profile

KW - Sol-gel method

UR - https://www.scopus.com/pages/publications/84873510273

U2 - 10.1002/pssb.201248464

DO - 10.1002/pssb.201248464

M3 - Article

AN - SCOPUS:84873510273

SN - 0370-1972

VL - 250

SP - 374

EP - 377

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

IS - 2

ER -

Synthesis and luminescent properties of nanocrystalline CaYAlO₄: Sm³⁺ phosphors

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this