Preparation and characterization of erbium oxalate and erbium oxide nanoparticles 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)00297-1

Preparation and characterization of erbium oxalate and erbium oxide nanoparticles 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

20 Citations (Scopus)

Abstract

This paper reports the preparation and characterization of erbium oxalate and erbium oxide nanoparticles. The erbium oxalate and erbium oxide phosphor materials were synthesized through the microemulsion technique. Transmission electron microscopy (TEM) was used to characterize the phosphor materials and reveal a nanocrystal structure for the studied phosphors. A strong green up-conversion emission at 543 nm (⁴S_3/2 → ⁴I₁₅/₂) and another weak emission at 528 nm (²H_11/2 →⁴I_15/2) have been measured for the studied phosphors upon excitation at 993 nm (⁴I_11/2 → ⁴I_15/2). The up-conversion emission mechanism has been explained by means of an energy level diagram. The lifetimes of these emissions have been measured. The green up-conversion emission equally strong in both the phosphors and for these phosphors, color coordinates (X, Y) have been obtained in order to assess their color emitting efficiency.

Original language	English
Pages (from-to)	51-54
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)00297-1
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)00297-1

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title = "Preparation and characterization of erbium oxalate and erbium oxide nanoparticles by microemulsion technique",

abstract = "This paper reports the preparation and characterization of erbium oxalate and erbium oxide nanoparticles. The erbium oxalate and erbium oxide phosphor materials were synthesized through the microemulsion technique. Transmission electron microscopy (TEM) was used to characterize the phosphor materials and reveal a nanocrystal structure for the studied phosphors. A strong green up-conversion emission at 543 nm (4S3/2 → 4I15/2) and another weak emission at 528 nm (2H11/2 →4I15/2) have been measured for the studied phosphors upon excitation at 993 nm (4I11/2 → 4I15/2). The up-conversion emission mechanism has been explained by means of an energy level diagram. The lifetimes of these emissions have been measured. The green up-conversion emission equally strong in both the phosphors and for these phosphors, color coordinates (X, Y) have been obtained in order to assess their color emitting efficiency.",

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",

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doi = "10.1016/S0928-4931(01)00297-1",

language = "English",

volume = "16",

pages = "51--54",

journal = "Materials Science and Engineering C",

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T1 - Preparation and characterization of erbium oxalate and erbium oxide nanoparticles 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 reports the preparation and characterization of erbium oxalate and erbium oxide nanoparticles. The erbium oxalate and erbium oxide phosphor materials were synthesized through the microemulsion technique. Transmission electron microscopy (TEM) was used to characterize the phosphor materials and reveal a nanocrystal structure for the studied phosphors. A strong green up-conversion emission at 543 nm (4S3/2 → 4I15/2) and another weak emission at 528 nm (2H11/2 →4I15/2) have been measured for the studied phosphors upon excitation at 993 nm (4I11/2 → 4I15/2). The up-conversion emission mechanism has been explained by means of an energy level diagram. The lifetimes of these emissions have been measured. The green up-conversion emission equally strong in both the phosphors and for these phosphors, color coordinates (X, Y) have been obtained in order to assess their color emitting efficiency.

AB - This paper reports the preparation and characterization of erbium oxalate and erbium oxide nanoparticles. The erbium oxalate and erbium oxide phosphor materials were synthesized through the microemulsion technique. Transmission electron microscopy (TEM) was used to characterize the phosphor materials and reveal a nanocrystal structure for the studied phosphors. A strong green up-conversion emission at 543 nm (4S3/2 → 4I15/2) and another weak emission at 528 nm (2H11/2 →4I15/2) have been measured for the studied phosphors upon excitation at 993 nm (4I11/2 → 4I15/2). The up-conversion emission mechanism has been explained by means of an energy level diagram. The lifetimes of these emissions have been measured. The green up-conversion emission equally strong in both the phosphors and for these phosphors, color coordinates (X, Y) have been obtained in order to assess their color emitting efficiency.

KW - Chemical synthesis

KW - Electron diffraction

KW - Nanostructure

KW - Up-conversion

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DO - 10.1016/S0928-4931(01)00297-1

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SN - 0928-4931

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JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

IS - 1-2

ER -

Preparation and characterization of erbium oxalate and erbium oxide nanoparticles by microemulsion technique

Abstract

ASJC Scopus Subject Areas

Keywords

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