Pulsed-laser-induced simple synthetic route for Tb 3Al 5O 12:Ce 3+ colloidal nanocrystals and their luminescent properties

Sung Wook Mhin; Jeong Ho Ryu; Kang Min Kim; Gyeong Seon Park; Han Wool Ryu; Kwang Bo Shim; Takeshi Sasaki; Naoto Koshizaki

doi:10.1007/s11671-009-9331-9

Pulsed-laser-induced simple synthetic route for Tb ₃Al ₅O ₁₂:Ce ³⁺ colloidal nanocrystals and their luminescent properties

Sung Wook Mhin, Jeong Ho Ryu, Kang Min Kim, Gyeong Seon Park, Han Wool Ryu, Kwang Bo Shim, Takeshi Sasaki, Naoto Koshizaki

Department of Energy and Materials Engineering

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

32 Scopus citations

Abstract

Cerium-doped Tb ₃Al ₅O ₁₂ (TAG:Ce ³⁺) colloidal nanocrystals were synthesized by pulsed laser ablation (PLA) in de-ionized water and lauryl dimethylaminoacetic acid betain (LDA) aqueous solution for luminescent bio-labeling application. The influence of LDA molecules on the crystallinity, crystal morphology, crystallite size, and luminescent properties of the prepared TAG:Ce ³⁺ colloidal nanocrystals was investigated in detail. When the LDA solution was used, smaller average crystallite size, narrower size distribution, and enhanced luminescence were observed. These characteristics were explained by the effective role of occupying the oxygen defects on the surface of TAG:Ce ³⁺ colloidal nanocrystal because the amphoteric LDA molecules were attached by positively charged TAG:Ce ³⁺ colloidal nanocrystals. The blue-shifted phenomena found in luminescent spectra of the TAG:Ce ³⁺ colloidal nanocrystals could not be explained by previous crystal field theory. We discuss the 5d energy level of Ce ³⁺ with decreased crystal size with a phenomenological model that explains the relationship between bond distance with 5d energy level of Ce ³⁺ based on the concept of crystal field theory modified by covalency contribution.

Original language	English
Pages (from-to)	888-895
Number of pages	8
Journal	Nanoscale Research Letters
Volume	4
Issue number	8
DOIs	https://doi.org/10.1007/s11671-009-9331-9
State	Published - 2009

Keywords

Blue-shift
LDA
Luminescence
Pulsed laser ablation
TAG:Ce nanocrystal

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10.1007/s11671-009-9331-9

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title = "Pulsed-laser-induced simple synthetic route for Tb 3Al 5O 12:Ce 3+ colloidal nanocrystals and their luminescent properties",

abstract = "Cerium-doped Tb 3Al 5O 12 (TAG:Ce 3+) colloidal nanocrystals were synthesized by pulsed laser ablation (PLA) in de-ionized water and lauryl dimethylaminoacetic acid betain (LDA) aqueous solution for luminescent bio-labeling application. The influence of LDA molecules on the crystallinity, crystal morphology, crystallite size, and luminescent properties of the prepared TAG:Ce 3+ colloidal nanocrystals was investigated in detail. When the LDA solution was used, smaller average crystallite size, narrower size distribution, and enhanced luminescence were observed. These characteristics were explained by the effective role of occupying the oxygen defects on the surface of TAG:Ce 3+ colloidal nanocrystal because the amphoteric LDA molecules were attached by positively charged TAG:Ce 3+ colloidal nanocrystals. The blue-shifted phenomena found in luminescent spectra of the TAG:Ce 3+ colloidal nanocrystals could not be explained by previous crystal field theory. We discuss the 5d energy level of Ce 3+ with decreased crystal size with a phenomenological model that explains the relationship between bond distance with 5d energy level of Ce 3+ based on the concept of crystal field theory modified by covalency contribution.",

keywords = "Blue-shift, LDA, Luminescence, Pulsed laser ablation, TAG:Ce nanocrystal",

author = "Mhin, {Sung Wook} and Ryu, {Jeong Ho} and Kim, {Kang Min} and Park, {Gyeong Seon} and Ryu, {Han Wool} and Shim, {Kwang Bo} and Takeshi Sasaki and Naoto Koshizaki",

year = "2009",

doi = "10.1007/s11671-009-9331-9",

language = "English",

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journal = "Nanoscale Research Letters",

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T1 - Pulsed-laser-induced simple synthetic route for Tb 3Al 5O 12:Ce 3+ colloidal nanocrystals and their luminescent properties

AU - Mhin, Sung Wook

AU - Ryu, Jeong Ho

AU - Kim, Kang Min

AU - Park, Gyeong Seon

AU - Ryu, Han Wool

AU - Shim, Kwang Bo

AU - Sasaki, Takeshi

AU - Koshizaki, Naoto

PY - 2009

Y1 - 2009

N2 - Cerium-doped Tb 3Al 5O 12 (TAG:Ce 3+) colloidal nanocrystals were synthesized by pulsed laser ablation (PLA) in de-ionized water and lauryl dimethylaminoacetic acid betain (LDA) aqueous solution for luminescent bio-labeling application. The influence of LDA molecules on the crystallinity, crystal morphology, crystallite size, and luminescent properties of the prepared TAG:Ce 3+ colloidal nanocrystals was investigated in detail. When the LDA solution was used, smaller average crystallite size, narrower size distribution, and enhanced luminescence were observed. These characteristics were explained by the effective role of occupying the oxygen defects on the surface of TAG:Ce 3+ colloidal nanocrystal because the amphoteric LDA molecules were attached by positively charged TAG:Ce 3+ colloidal nanocrystals. The blue-shifted phenomena found in luminescent spectra of the TAG:Ce 3+ colloidal nanocrystals could not be explained by previous crystal field theory. We discuss the 5d energy level of Ce 3+ with decreased crystal size with a phenomenological model that explains the relationship between bond distance with 5d energy level of Ce 3+ based on the concept of crystal field theory modified by covalency contribution.

AB - Cerium-doped Tb 3Al 5O 12 (TAG:Ce 3+) colloidal nanocrystals were synthesized by pulsed laser ablation (PLA) in de-ionized water and lauryl dimethylaminoacetic acid betain (LDA) aqueous solution for luminescent bio-labeling application. The influence of LDA molecules on the crystallinity, crystal morphology, crystallite size, and luminescent properties of the prepared TAG:Ce 3+ colloidal nanocrystals was investigated in detail. When the LDA solution was used, smaller average crystallite size, narrower size distribution, and enhanced luminescence were observed. These characteristics were explained by the effective role of occupying the oxygen defects on the surface of TAG:Ce 3+ colloidal nanocrystal because the amphoteric LDA molecules were attached by positively charged TAG:Ce 3+ colloidal nanocrystals. The blue-shifted phenomena found in luminescent spectra of the TAG:Ce 3+ colloidal nanocrystals could not be explained by previous crystal field theory. We discuss the 5d energy level of Ce 3+ with decreased crystal size with a phenomenological model that explains the relationship between bond distance with 5d energy level of Ce 3+ based on the concept of crystal field theory modified by covalency contribution.

KW - Blue-shift

KW - LDA

KW - Luminescence

KW - Pulsed laser ablation

KW - TAG:Ce nanocrystal

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Pulsed-laser-induced simple synthetic route for Tb ₃Al ₅O ₁₂:Ce ³⁺ colloidal nanocrystals and their luminescent properties

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