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DC Field | Value | Language |
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dc.citation.endPage | 275 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 270 | - |
dc.citation.title | 한국재료학회지 | - |
dc.citation.volume | 14 | - |
dc.contributor.author | Oh, Jae-Suk | - |
dc.contributor.author | Lee, Tack-Hyuck | - |
dc.contributor.author | Seok, Sang Il | - |
dc.contributor.author | Jung, Ha-Kyun | - |
dc.date.accessioned | 2023-12-22T11:06:36Z | - |
dc.date.available | 2023-12-22T11:06:36Z | - |
dc.date.created | 2016-02-16 | - |
dc.date.issued | 2004-04 | - |
dc.description.abstract | Due to the luminescence by Er 3+ activator, Er-doped LaPO 4 powders can be applied for optical amplification materials. In this study, LaPO 4 :Er nanoparticles were synthesized in solution system using a high-boiling coordinating solvent and their properties were investigated through various spectroscopic techniques. The nanoparticles were to take a single phase of monazite structure by a X-ray diffraction analysis and to have the 5-6 nm of particles size with narrow size distribution by a TEM. And it was confirmed by the EA and FT-IR analyses that the surfaces of nanoparticles are coordinated with the solvent molecules, which will possibly keep from agglomerating between LaPO 4 :Er nanoparticles. In the emission spectrum of LaPO 4 :Er nanoparticle at NIR region, on the other hand, it was measured that the emission intensity is very weak, which is due to the transition from 4 I (13/2) to 4 I (15/2) of Er 3+ ion. It was interpreted that the weak luminescence of LaPO 4 :Er is originated from the hydroxyl groups adsorbed on the surfaces of the nanoparticles, because OH group acts as an efficient quencher for the 4 I (13/2) \longrightarrow 4 I (15/2) emission of Er 3+ activator. But the co-doping of Yb 3+ as a sensitizer in this nanoparticle results in the increase of the emission intensity at 1539 nm due to the effective energy transfer from Yb 3+ to Er 3+ . In addition, the synthesized nanoparticles exhibited good dispersibility with some polymers and effective luminescence at NIR region.n. | - |
dc.identifier.bibliographicCitation | 한국재료학회지, v.14, no.4, pp.270 - 275 | - |
dc.identifier.doi | 10.3740/MRSK.2004.14.4.270 | - |
dc.identifier.issn | 1225-0562 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/18696 | - |
dc.identifier.url | http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=GJRHBQ_2004_v14n4_270 | - |
dc.language | 한국어 | - |
dc.publisher | 한국재료학회 | - |
dc.title.alternative | Preparation and Luminescent Properties of LaPO 4 :Re (Re=Er, Yb) Nanoparticles | - |
dc.title | 희토류 이온(Er/Yb)이 도핑된 LaPO 4 나노입자의 합성과 발광특성 | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.description.journalRegisteredClass | kci | - |
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