Up-conversion emission in violet from neodymium oxalate and neodymium oxide phosphors obtained by microemulsion technique

Wenxiu Que; S. Buddhudu; Y. Zhou; Y. L. Lam; J. Zhou; Y. C. Chan; C. H. Kam; L. H. Gan; G. Roshan Deen

doi:10.1016/S0928-4931(01)00292-2

Up-conversion emission in violet from neodymium oxalate and neodymium oxide phosphors obtained by microemulsion technique

Wenxiu Que^*, S. Buddhudu, Y. Zhou, Y. L. Lam, J. Zhou, Y. C. Chan, C. H. Kam, L. H. Gan, G. Roshan Deen

^*Corresponding author for this work

Nanyang Technological University

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

15 Citations (Scopus)

Abstract

This paper presents an up-conversion emission in violet (404 nm) color from neodymium oxide and neodymium oxalate nanoparticles upon excitation with a yellow light (580 nm). Powder phosphors of neodymium oxide and neodymium oxalate nanoparticles were synthesized by the microemulsion technique. In addition to this violet emission, two UV emissions at 342 and 370 nm, and a weak blue emission at 450 nm have been observed and these are assigned to electronic transitions appropriately. The lifetimes of the violet color emission transition at 404 nm have been obtained; the mechanism of the up-conversion emission has been explained. The oxide-based phosphor has shown strong up-conversion emission compared to the oxalate-based phosphor. The transmission electron microscopy (TEM) measurement shows that the oxide phosphor is in nanocrystal structure.

Original language	English
Pages (from-to)	153-156
Number of pages	4
Journal	Materials Science and Engineering C
Volume	16
Issue number	1-2
DOIs	https://doi.org/10.1016/S0928-4931(01)00292-2
Publication status	Published - Oct 20 2001
Externally published	Yes

ASJC Scopus Subject Areas

General Medicine

Keywords

Chemical synthesis
Electron diffraction
Nanostructure
Up-conversion

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10.1016/S0928-4931(01)00292-2

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title = "Up-conversion emission in violet from neodymium oxalate and neodymium oxide phosphors obtained by microemulsion technique",

abstract = "This paper presents an up-conversion emission in violet (404 nm) color from neodymium oxide and neodymium oxalate nanoparticles upon excitation with a yellow light (580 nm). Powder phosphors of neodymium oxide and neodymium oxalate nanoparticles were synthesized by the microemulsion technique. In addition to this violet emission, two UV emissions at 342 and 370 nm, and a weak blue emission at 450 nm have been observed and these are assigned to electronic transitions appropriately. The lifetimes of the violet color emission transition at 404 nm have been obtained; the mechanism of the up-conversion emission has been explained. The oxide-based phosphor has shown strong up-conversion emission compared to the oxalate-based phosphor. The transmission electron microscopy (TEM) measurement shows that the oxide phosphor is in nanocrystal structure.",

keywords = "Chemical synthesis, Electron diffraction, Nanostructure, Up-conversion",

author = "Wenxiu Que and S. Buddhudu and Y. Zhou and Lam, {Y. L.} and J. Zhou and Chan, {Y. C.} and Kam, {C. H.} and Gan, {L. H.} and {Roshan Deen}, G.",

year = "2001",

month = oct,

day = "20",

doi = "10.1016/S0928-4931(01)00292-2",

language = "English",

volume = "16",

pages = "153--156",

journal = "Materials Science and Engineering C",

issn = "0928-4931",

publisher = "Elsevier BV",

number = "1-2",

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TY - JOUR

T1 - Up-conversion emission in violet from neodymium oxalate and neodymium oxide phosphors obtained by microemulsion technique

AU - Que, Wenxiu

AU - Buddhudu, S.

AU - Zhou, Y.

AU - Lam, Y. L.

AU - Zhou, J.

AU - Chan, Y. C.

AU - Kam, C. H.

AU - Gan, L. H.

AU - Roshan Deen, G.

PY - 2001/10/20

Y1 - 2001/10/20

N2 - This paper presents an up-conversion emission in violet (404 nm) color from neodymium oxide and neodymium oxalate nanoparticles upon excitation with a yellow light (580 nm). Powder phosphors of neodymium oxide and neodymium oxalate nanoparticles were synthesized by the microemulsion technique. In addition to this violet emission, two UV emissions at 342 and 370 nm, and a weak blue emission at 450 nm have been observed and these are assigned to electronic transitions appropriately. The lifetimes of the violet color emission transition at 404 nm have been obtained; the mechanism of the up-conversion emission has been explained. The oxide-based phosphor has shown strong up-conversion emission compared to the oxalate-based phosphor. The transmission electron microscopy (TEM) measurement shows that the oxide phosphor is in nanocrystal structure.

AB - This paper presents an up-conversion emission in violet (404 nm) color from neodymium oxide and neodymium oxalate nanoparticles upon excitation with a yellow light (580 nm). Powder phosphors of neodymium oxide and neodymium oxalate nanoparticles were synthesized by the microemulsion technique. In addition to this violet emission, two UV emissions at 342 and 370 nm, and a weak blue emission at 450 nm have been observed and these are assigned to electronic transitions appropriately. The lifetimes of the violet color emission transition at 404 nm have been obtained; the mechanism of the up-conversion emission has been explained. The oxide-based phosphor has shown strong up-conversion emission compared to the oxalate-based phosphor. The transmission electron microscopy (TEM) measurement shows that the oxide phosphor is in nanocrystal structure.

KW - Chemical synthesis

KW - Electron diffraction

KW - Nanostructure

KW - Up-conversion

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U2 - 10.1016/S0928-4931(01)00292-2

DO - 10.1016/S0928-4931(01)00292-2

M3 - Article

AN - SCOPUS:0035922737

SN - 0928-4931

VL - 16

SP - 153

EP - 156

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

IS - 1-2

ER -

Up-conversion emission in violet from neodymium oxalate and neodymium oxide phosphors obtained by microemulsion technique

Abstract

ASJC Scopus Subject Areas

Keywords

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