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Visible and infrared emission from Er₂O₃ nanoparticles, and Ho⁺³, Tm⁺³, and Sm⁺³ doped in AlN for optical and biomedical applicationsWilkinson, Lynda L. 21 July 2012 (has links)
Rare-earth ions holmium (Ho+3), Thulium (Tm+3), and Samarium (Sm+3) were investigated for
infrared emission and their possible biomedical applications by a photoluminescence (PL)
system. Holmium’s (Ho+3) emission peaks were the result of transitions
5
S2 →
5
I7,
and
5
S2 →
5
I5
respectively. Samarium’s (Sm+3) emission peaks were 936 nm and 1863 nm. Thulium’s (Tm+3)
emission peaks were the a result of transitions
3
H4 →
3
H6,
3
H5 →
3
H6 , and
3
F4 →
3
H6 respectively.
Erbium Oxide nanoparticles (Er2O3) mixed with water by a photoluminescence (PL) system.
Erbium Oxide’ (Er2O3) nanoparticle’s emission peaks were the a result of transitions
4
I15/2 →
4
S3/2
,
4
I15/2 →
4
I13/2 respectively. The process was also repeated in vacuum and it was found that
the green emission enhances tremendously when the nanoparticles are excited in vacuum. This
enhanced luminescence from the Erbium Oxide nanoparticles shows their potential importance
in the optical devices and Biomedical applications. / Department of Physics and Astronomy
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Caracterizacao espectroscopica e dinamica temporal dos processos de transferencia de energia entre os ions Tm sup(3+) - Ho sup(3+) e Yb sup(3+) - Tm sup(3+) em cristais de LiYF sub(4) e LiLuF sub(4)TARELHO, LUIZ V.G. 09 October 2014 (has links)
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07543.pdf: 4162108 bytes, checksum: fea345edb32c7ebb6b06110c513a47b1 (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:95/03214-1
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Caracterizacao espectroscopica e dinamica temporal dos processos de transferencia de energia entre os ions Tm sup(3+) - Ho sup(3+) e Yb sup(3+) - Tm sup(3+) em cristais de LiYF sub(4) e LiLuF sub(4)TARELHO, LUIZ V.G. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:46:25Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:57:21Z (GMT). No. of bitstreams: 1
07543.pdf: 4162108 bytes, checksum: fea345edb32c7ebb6b06110c513a47b1 (MD5) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP / FAPESP:95/03214-1
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