Enhanced ultraviolet lasing from europium-doped zinc oxide nanocrystals

L. Luo; L. Gong; Y. F. Liu; J. Chen; C. R. Ding; X. G. Tang; X. L. Li; Z. R. Qiu; H. Z. Wang; X. M. Chen; K. F. Li; H. H. Fan; K. W. Cheah

doi:10.1016/j.optmat.2010.02.032

Enhanced ultraviolet lasing from europium-doped zinc oxide nanocrystals

L. Luo, L. Gong, Y. F. Liu, J. Chen, C. R. Ding, X. G. Tang, X. L. Li, Z. R. Qiu, H. Z. Wang^*, X. M. Chen, K. F. Li, H. H. Fan, K. W. Cheah

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

42 Citations (Scopus)

Abstract

Europium (Eu)-doped zinc oxide (ZnO) nanocrystals are prepared by the sol-gel method. Compared with undoped ZnO nanocrystals, Eu-doped ZnO nanocrystals have enhanced ultraviolet (UV) lasing and reduced threshold at room temperature. The UV lasing properties of both the doped and the undoped samples were studied by the time-resolved and power-dependent photoluminescence (PL) experiments. The enhancement of UV lasing is due to the significantly reduced singly ionized oxygen vacancies with Eu doping, which is confirmed by both the PL spectra and the X-ray photoelectron spectra. It indicates that high-efficiency and low-threshold UV lasing sources can be fabricated from Eu-doped ZnO nanocrystals.

Original language	English
Pages (from-to)	1066-1070
Number of pages	5
Journal	Optical Materials
Volume	32
Issue number	9
DOIs	https://doi.org/10.1016/j.optmat.2010.02.032
Publication status	Published - Jul 2010

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

User-Defined Keywords

Eu doping
Lasing
Nanocrystals
Ultraviolet
Zno

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10.1016/j.optmat.2010.02.032

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@article{a4a2f643d25944b9b8908430cd606857,

title = "Enhanced ultraviolet lasing from europium-doped zinc oxide nanocrystals",

abstract = "Europium (Eu)-doped zinc oxide (ZnO) nanocrystals are prepared by the sol-gel method. Compared with undoped ZnO nanocrystals, Eu-doped ZnO nanocrystals have enhanced ultraviolet (UV) lasing and reduced threshold at room temperature. The UV lasing properties of both the doped and the undoped samples were studied by the time-resolved and power-dependent photoluminescence (PL) experiments. The enhancement of UV lasing is due to the significantly reduced singly ionized oxygen vacancies with Eu doping, which is confirmed by both the PL spectra and the X-ray photoelectron spectra. It indicates that high-efficiency and low-threshold UV lasing sources can be fabricated from Eu-doped ZnO nanocrystals.",

keywords = "Eu doping, Lasing, Nanocrystals, Ultraviolet, Zno",

author = "L. Luo and L. Gong and Liu, {Y. F.} and J. Chen and Ding, {C. R.} and Tang, {X. G.} and Li, {X. L.} and Qiu, {Z. R.} and Wang, {H. Z.} and Chen, {X. M.} and Li, {K. F.} and Fan, {H. H.} and Cheah, {K. W.}",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China Nos. 10774031 , 10874250 , 10674183 and Guangdong Province Natural Science Foundation of China No. 07001790 .",

year = "2010",

month = jul,

doi = "10.1016/j.optmat.2010.02.032",

language = "English",

volume = "32",

pages = "1066--1070",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

number = "9",

}

TY - JOUR

T1 - Enhanced ultraviolet lasing from europium-doped zinc oxide nanocrystals

AU - Luo, L.

AU - Gong, L.

AU - Liu, Y. F.

AU - Chen, J.

AU - Ding, C. R.

AU - Tang, X. G.

AU - Li, X. L.

AU - Qiu, Z. R.

AU - Wang, H. Z.

AU - Chen, X. M.

AU - Li, K. F.

AU - Fan, H. H.

AU - Cheah, K. W.

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China Nos. 10774031 , 10874250 , 10674183 and Guangdong Province Natural Science Foundation of China No. 07001790 .

PY - 2010/7

Y1 - 2010/7

N2 - Europium (Eu)-doped zinc oxide (ZnO) nanocrystals are prepared by the sol-gel method. Compared with undoped ZnO nanocrystals, Eu-doped ZnO nanocrystals have enhanced ultraviolet (UV) lasing and reduced threshold at room temperature. The UV lasing properties of both the doped and the undoped samples were studied by the time-resolved and power-dependent photoluminescence (PL) experiments. The enhancement of UV lasing is due to the significantly reduced singly ionized oxygen vacancies with Eu doping, which is confirmed by both the PL spectra and the X-ray photoelectron spectra. It indicates that high-efficiency and low-threshold UV lasing sources can be fabricated from Eu-doped ZnO nanocrystals.

AB - Europium (Eu)-doped zinc oxide (ZnO) nanocrystals are prepared by the sol-gel method. Compared with undoped ZnO nanocrystals, Eu-doped ZnO nanocrystals have enhanced ultraviolet (UV) lasing and reduced threshold at room temperature. The UV lasing properties of both the doped and the undoped samples were studied by the time-resolved and power-dependent photoluminescence (PL) experiments. The enhancement of UV lasing is due to the significantly reduced singly ionized oxygen vacancies with Eu doping, which is confirmed by both the PL spectra and the X-ray photoelectron spectra. It indicates that high-efficiency and low-threshold UV lasing sources can be fabricated from Eu-doped ZnO nanocrystals.

KW - Eu doping

KW - Lasing

KW - Nanocrystals

KW - Ultraviolet

KW - Zno

UR - http://www.scopus.com/inward/record.url?scp=78149285015&partnerID=8YFLogxK

U2 - 10.1016/j.optmat.2010.02.032

DO - 10.1016/j.optmat.2010.02.032

M3 - Journal article

AN - SCOPUS:78149285015

SN - 0925-3467

VL - 32

SP - 1066

EP - 1070

JO - Optical Materials

JF - Optical Materials

IS - 9

ER -

Enhanced ultraviolet lasing from europium-doped zinc oxide nanocrystals

Abstract

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