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Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties

Cerium-doped Tb(3)Al(5)O(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...

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Autores principales: Mhin, SungWook, Ryu, JeongHo, Kim, KangMin, Park, GyeongSeon, Ryu, HanWool, Shim, KwangBo, Sasaki, Takeshi, Koshizaki, Naoto
Formato: Texto
Lenguaje:English
Publicado: Springer 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894061/
https://www.ncbi.nlm.nih.gov/pubmed/20596420
http://dx.doi.org/10.1007/s11671-009-9331-9
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author Mhin, SungWook
Ryu, JeongHo
Kim, KangMin
Park, GyeongSeon
Ryu, HanWool
Shim, KwangBo
Sasaki, Takeshi
Koshizaki, Naoto
author_facet Mhin, SungWook
Ryu, JeongHo
Kim, KangMin
Park, GyeongSeon
Ryu, HanWool
Shim, KwangBo
Sasaki, Takeshi
Koshizaki, Naoto
author_sort Mhin, SungWook
collection PubMed
description Cerium-doped Tb(3)Al(5)O(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.
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spelling pubmed-28940612010-06-30 Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties Mhin, SungWook Ryu, JeongHo Kim, KangMin Park, GyeongSeon Ryu, HanWool Shim, KwangBo Sasaki, Takeshi Koshizaki, Naoto Nanoscale Res Lett Nano Express Cerium-doped Tb(3)Al(5)O(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. Springer 2009-05-15 /pmc/articles/PMC2894061/ /pubmed/20596420 http://dx.doi.org/10.1007/s11671-009-9331-9 Text en Copyright ©2009 to the authors
spellingShingle Nano Express
Mhin, SungWook
Ryu, JeongHo
Kim, KangMin
Park, GyeongSeon
Ryu, HanWool
Shim, KwangBo
Sasaki, Takeshi
Koshizaki, Naoto
Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title_full Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title_fullStr Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title_full_unstemmed Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title_short Pulsed-Laser-Induced Simple Synthetic Route for Tb(3)Al(5)O(12):Ce(3+)Colloidal Nanocrystals and Their Luminescent Properties
title_sort pulsed-laser-induced simple synthetic route for tb(3)al(5)o(12):ce(3+)colloidal nanocrystals and their luminescent properties
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894061/
https://www.ncbi.nlm.nih.gov/pubmed/20596420
http://dx.doi.org/10.1007/s11671-009-9331-9
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