Luminescent and crystalline properties of blue-white-emitting nanocrystalline Sr2CeO4 thin films produced by laser ablation

Néstor Perea; G. A. Hirata

doi:10.1016/j.optmat.2004.11.013

Luminescent and crystalline properties of blue-white-emitting nanocrystalline Sr₂CeO₄ thin films produced by laser ablation

Néstor Perea, G. A. Hirata

Physics

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

14 Scopus citations

Abstract

Blue-white luminescent Sr₂CeO₄ thin films were deposited by using pulsed laser ablation (λ = 248 nm wavelength) on 500 °C silicon (1 1 1) substrates under an oxygen pressure of 55 mTorr. High-resolution electron transmission microscopy and X-ray diffraction analysis revealed that the films were composed of nanocrystalline Sr₂CeO ₄ grains of the order of 20-30 nm with a preferential orientation in the (1 3 0) crystallographic direction. The excitation and photoluminescence spectra measured on the films maintained the characteristic emission of Sr ₂CeO₄ however, the emission peak appeared narrower and blue-shifted as compared to the luminescence spectrum of the target. This blue-shift of about 10 nm may be related to the nanocrystalline nature of the grains and the preferential crystallographic orientation during the growth formation of the film.

Original language	English (US)
Pages (from-to)	1212-1216
Number of pages	5
Journal	Optical Materials
Volume	27
Issue number	7
DOIs	https://doi.org/10.1016/j.optmat.2004.11.013
State	Published - Apr 2005
Event	Proceedings of the First Topical Meeting on Nanostructured Materials and Nanotechnology CIO 2004 - Duration: Sep 22 2004 → Sep 24 2004

All Science Journal Classification (ASJC) codes

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

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10.1016/j.optmat.2004.11.013

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title = "Luminescent and crystalline properties of blue-white-emitting nanocrystalline Sr2CeO4 thin films produced by laser ablation",

abstract = "Blue-white luminescent Sr2CeO4 thin films were deposited by using pulsed laser ablation (λ = 248 nm wavelength) on 500 °C silicon (1 1 1) substrates under an oxygen pressure of 55 mTorr. High-resolution electron transmission microscopy and X-ray diffraction analysis revealed that the films were composed of nanocrystalline Sr2CeO 4 grains of the order of 20-30 nm with a preferential orientation in the (1 3 0) crystallographic direction. The excitation and photoluminescence spectra measured on the films maintained the characteristic emission of Sr 2CeO4 however, the emission peak appeared narrower and blue-shifted as compared to the luminescence spectrum of the target. This blue-shift of about 10 nm may be related to the nanocrystalline nature of the grains and the preferential crystallographic orientation during the growth formation of the film.",

author = "N{\'e}stor Perea and Hirata, {G. A.}",

note = "Funding Information: This study was supported by CONACyT (Grants 40128-F and 35971-U) and DGAPA-UNAM (Grant IN105201). The authors acknowledge the technical work performed by E. Aparicio, M. Saenz, F. Ruiz, A. Tiznado, E. Medina, J. Peralta, I. Gradilla, V. Garcia, G. Vilchis, E. Flores and P. Casillas.; Proceedings of the First Topical Meeting on Nanostructured Materials and Nanotechnology CIO 2004 ; Conference date: 22-09-2004 Through 24-09-2004",

year = "2005",

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doi = "10.1016/j.optmat.2004.11.013",

language = "English (US)",

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T1 - Luminescent and crystalline properties of blue-white-emitting nanocrystalline Sr2CeO4 thin films produced by laser ablation

AU - Perea, Néstor

AU - Hirata, G. A.

N1 - Funding Information: This study was supported by CONACyT (Grants 40128-F and 35971-U) and DGAPA-UNAM (Grant IN105201). The authors acknowledge the technical work performed by E. Aparicio, M. Saenz, F. Ruiz, A. Tiznado, E. Medina, J. Peralta, I. Gradilla, V. Garcia, G. Vilchis, E. Flores and P. Casillas.

PY - 2005/4

Y1 - 2005/4

N2 - Blue-white luminescent Sr2CeO4 thin films were deposited by using pulsed laser ablation (λ = 248 nm wavelength) on 500 °C silicon (1 1 1) substrates under an oxygen pressure of 55 mTorr. High-resolution electron transmission microscopy and X-ray diffraction analysis revealed that the films were composed of nanocrystalline Sr2CeO 4 grains of the order of 20-30 nm with a preferential orientation in the (1 3 0) crystallographic direction. The excitation and photoluminescence spectra measured on the films maintained the characteristic emission of Sr 2CeO4 however, the emission peak appeared narrower and blue-shifted as compared to the luminescence spectrum of the target. This blue-shift of about 10 nm may be related to the nanocrystalline nature of the grains and the preferential crystallographic orientation during the growth formation of the film.

AB - Blue-white luminescent Sr2CeO4 thin films were deposited by using pulsed laser ablation (λ = 248 nm wavelength) on 500 °C silicon (1 1 1) substrates under an oxygen pressure of 55 mTorr. High-resolution electron transmission microscopy and X-ray diffraction analysis revealed that the films were composed of nanocrystalline Sr2CeO 4 grains of the order of 20-30 nm with a preferential orientation in the (1 3 0) crystallographic direction. The excitation and photoluminescence spectra measured on the films maintained the characteristic emission of Sr 2CeO4 however, the emission peak appeared narrower and blue-shifted as compared to the luminescence spectrum of the target. This blue-shift of about 10 nm may be related to the nanocrystalline nature of the grains and the preferential crystallographic orientation during the growth formation of the film.

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DO - 10.1016/j.optmat.2004.11.013

M3 - Conference article

AN - SCOPUS:15944401413

SN - 0925-3467

VL - 27

SP - 1212

EP - 1216

JO - Optical Materials

JF - Optical Materials

IS - 7

T2 - Proceedings of the First Topical Meeting on Nanostructured Materials and Nanotechnology CIO 2004

Y2 - 22 September 2004 through 24 September 2004

ER -

Luminescent and crystalline properties of blue-white-emitting nanocrystalline Sr₂CeO₄ thin films produced by laser ablation

Abstract

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