Enhancing upconversion emissions of NaTm0.02YbxY0.98-xF4 nanocrystals through increasing Yb3+ doping
Identifieur interne : 000238 ( Pascal/Corpus ); précédent : 000237; suivant : 000239Enhancing upconversion emissions of NaTm0.02YbxY0.98-xF4 nanocrystals through increasing Yb3+ doping
Auteurs : H. J. Liang ; Y. D. Zheng ; L. Wu ; L. X. Liu ; Z. G. Zhang ; W. W. CaoSource :
- Journal of luminescence [ 0022-2313 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Photoluminescence, Dopage, Processus n photons, Spectre excitation, Composition chimique, Microscopie électronique transmission, Niveau énergie, Déclin luminescence, Conversion fréquence, Sodium Ytterbium Yttrium Fluorure Mixte, Addition thulium, Spectre résolution temporelle, Dimension particule, Nanocristal.
English descriptors
- KwdEn :
Abstract
By increasing the content of Yb3+ ions from 20% to 98% in NaTm0.02YbxY0.98-xF4 (x=0.2-0.98) nanocrystals with size about 10 nm, the intensities of near infrared (800 nm) and blue (470 nm) upconversion (UC) luminescence can be enhanced by orders of 45 and 49 times, respectively, under 970 nm diode laser excitation. Pump power dependence illustrated that the 800 and 470 nm radiations are still two- and three-photon processes, respectively. TEM imaging showed that the enhancement is not from the change of the crystal size. Steady-state equation and the measured lifetimes indicated that the enhanced 800 nm radiations can induce the enhancement of the 470 nm emissions, which is in good agreement with the experimental data.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 11-0318723 INIST |
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ET : | Enhancing upconversion emissions of NaTm0.02YbxY0.98-xF4 nanocrystals through increasing Yb3+ doping |
AU : | LIANG (H. J.); ZHENG (Y. D.); WU (L.); LIU (L. X); ZHANG (Z. G.); CAO (W. W.) |
AF : | Department of Physics, Harbin Institute of Technology/150001 Harbin/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Laboratory of Sono- and photo- theranostic Technology, Harbin Institute of Technology/150001 Harbin/Chine (1 aut., 2 aut., 4 aut., 5 aut., 6 aut.); Materials Research Institute, The Pennsylvania State University/University Park, 16802 Pennsylvania/Etats-Unis (6 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of luminescence; ISSN 0022-2313; Coden JLUMA8; Pays-Bas; Da. 2011; Vol. 131; No. 8; Pp. 1802-1806; Bibl. 20 ref. |
LA : | Anglais |
EA : | By increasing the content of Yb3+ ions from 20% to 98% in NaTm0.02YbxY0.98-xF4 (x=0.2-0.98) nanocrystals with size about 10 nm, the intensities of near infrared (800 nm) and blue (470 nm) upconversion (UC) luminescence can be enhanced by orders of 45 and 49 times, respectively, under 970 nm diode laser excitation. Pump power dependence illustrated that the 800 and 470 nm radiations are still two- and three-photon processes, respectively. TEM imaging showed that the enhancement is not from the change of the crystal size. Steady-state equation and the measured lifetimes indicated that the enhanced 800 nm radiations can induce the enhancement of the 470 nm emissions, which is in good agreement with the experimental data. |
CC : | 001B70H67B |
FD : | Photoluminescence; Dopage; Processus n photons; Spectre excitation; Composition chimique; Microscopie électronique transmission; Niveau énergie; Déclin luminescence; Conversion fréquence; Sodium Ytterbium Yttrium Fluorure Mixte; Addition thulium; Spectre résolution temporelle; Dimension particule; Nanocristal |
ED : | Photoluminescence; Doping; Multi-photon processes; Excitation spectrum; Chemical composition; Transmission electron microscopy; Energy levels; Luminescence decay; Frequency conversion; Sodium Ytterbium Yttrium Fluorides Mixed; Thulium additions; Time resolved spectra; Particle size; Nanocrystal |
SD : | Doping; Espectro excitación; Decadencia luminiscencia; Conversión frecuencia; Mixto; Nanocristal |
LO : | INIST-14666.354000190345120450 |
ID : | 11-0318723 |
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Pascal:11-0318723Le document en format XML
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Yb<sub>x</sub>
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F<sub>4</sub>
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Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
nanocrystals through increasing Yb<sup>3+</sup>
doping</title>
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<series><title level="j" type="main">Journal of luminescence</title>
<title level="j" type="abbreviated">J. lumin.</title>
<idno type="ISSN">0022-2313</idno>
<imprint><date when="2011">2011</date>
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<seriesStmt><title level="j" type="main">Journal of luminescence</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chemical composition</term>
<term>Doping</term>
<term>Energy levels</term>
<term>Excitation spectrum</term>
<term>Frequency conversion</term>
<term>Luminescence decay</term>
<term>Multi-photon processes</term>
<term>Nanocrystal</term>
<term>Particle size</term>
<term>Photoluminescence</term>
<term>Sodium Ytterbium Yttrium Fluorides Mixed</term>
<term>Thulium additions</term>
<term>Time resolved spectra</term>
<term>Transmission electron microscopy</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Photoluminescence</term>
<term>Dopage</term>
<term>Processus n photons</term>
<term>Spectre excitation</term>
<term>Composition chimique</term>
<term>Microscopie électronique transmission</term>
<term>Niveau énergie</term>
<term>Déclin luminescence</term>
<term>Conversion fréquence</term>
<term>Sodium Ytterbium Yttrium Fluorure Mixte</term>
<term>Addition thulium</term>
<term>Spectre résolution temporelle</term>
<term>Dimension particule</term>
<term>Nanocristal</term>
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<front><div type="abstract" xml:lang="en">By increasing the content of Yb<sup>3+</sup>
ions from 20% to 98% in NaTm<sub>0.02</sub>
Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
(x=0.2-0.98) nanocrystals with size about 10 nm, the intensities of near infrared (800 nm) and blue (470 nm) upconversion (UC) luminescence can be enhanced by orders of 45 and 49 times, respectively, under 970 nm diode laser excitation. Pump power dependence illustrated that the 800 and 470 nm radiations are still two- and three-photon processes, respectively. TEM imaging showed that the enhancement is not from the change of the crystal size. Steady-state equation and the measured lifetimes indicated that the enhanced 800 nm radiations can induce the enhancement of the 470 nm emissions, which is in good agreement with the experimental data.</div>
</front>
</TEI>
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<fA06><s2>8</s2>
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<fA08 i1="01" i2="1" l="ENG"><s1>Enhancing upconversion emissions of NaTm<sub>0.02</sub>
Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
nanocrystals through increasing Yb<sup>3+</sup>
doping</s1>
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<fA11 i1="01" i2="1"><s1>LIANG (H. J.)</s1>
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<fA14 i1="01"><s1>Department of Physics, Harbin Institute of Technology</s1>
<s2>150001 Harbin</s2>
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<fA14 i1="03"><s1>Materials Research Institute, The Pennsylvania State University</s1>
<s2>University Park, 16802 Pennsylvania</s2>
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<fC01 i1="01" l="ENG"><s0>By increasing the content of Yb<sup>3+</sup>
ions from 20% to 98% in NaTm<sub>0.02</sub>
Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
(x=0.2-0.98) nanocrystals with size about 10 nm, the intensities of near infrared (800 nm) and blue (470 nm) upconversion (UC) luminescence can be enhanced by orders of 45 and 49 times, respectively, under 970 nm diode laser excitation. Pump power dependence illustrated that the 800 and 470 nm radiations are still two- and three-photon processes, respectively. TEM imaging showed that the enhancement is not from the change of the crystal size. Steady-state equation and the measured lifetimes indicated that the enhanced 800 nm radiations can induce the enhancement of the 470 nm emissions, which is in good agreement with the experimental data.</s0>
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<s5>03</s5>
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<s5>03</s5>
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<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Energy levels</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Déclin luminescence</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Luminescence decay</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Decadencia luminiscencia</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Conversion fréquence</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Frequency conversion</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Conversión frecuencia</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Sodium Ytterbium Yttrium Fluorure Mixte</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Sodium Ytterbium Yttrium Fluorides Mixed</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Mixto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Addition thulium</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Thulium additions</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Spectre résolution temporelle</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Time resolved spectra</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Dimension particule</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Particle size</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Nanocristal</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Nanocrystal</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Nanocristal</s0>
<s5>15</s5>
</fC03>
<fN21><s1>220</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 11-0318723 INIST</NO>
<ET>Enhancing upconversion emissions of NaTm<sub>0.02</sub>
Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
nanocrystals through increasing Yb<sup>3+</sup>
doping</ET>
<AU>LIANG (H. J.); ZHENG (Y. D.); WU (L.); LIU (L. X); ZHANG (Z. G.); CAO (W. W.)</AU>
<AF>Department of Physics, Harbin Institute of Technology/150001 Harbin/Chine (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Laboratory of Sono- and photo- theranostic Technology, Harbin Institute of Technology/150001 Harbin/Chine (1 aut., 2 aut., 4 aut., 5 aut., 6 aut.); Materials Research Institute, The Pennsylvania State University/University Park, 16802 Pennsylvania/Etats-Unis (6 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of luminescence; ISSN 0022-2313; Coden JLUMA8; Pays-Bas; Da. 2011; Vol. 131; No. 8; Pp. 1802-1806; Bibl. 20 ref.</SO>
<LA>Anglais</LA>
<EA>By increasing the content of Yb<sup>3+</sup>
ions from 20% to 98% in NaTm<sub>0.02</sub>
Yb<sub>x</sub>
Y<sub>0.98-x</sub>
F<sub>4</sub>
(x=0.2-0.98) nanocrystals with size about 10 nm, the intensities of near infrared (800 nm) and blue (470 nm) upconversion (UC) luminescence can be enhanced by orders of 45 and 49 times, respectively, under 970 nm diode laser excitation. Pump power dependence illustrated that the 800 and 470 nm radiations are still two- and three-photon processes, respectively. TEM imaging showed that the enhancement is not from the change of the crystal size. Steady-state equation and the measured lifetimes indicated that the enhanced 800 nm radiations can induce the enhancement of the 470 nm emissions, which is in good agreement with the experimental data.</EA>
<CC>001B70H67B</CC>
<FD>Photoluminescence; Dopage; Processus n photons; Spectre excitation; Composition chimique; Microscopie électronique transmission; Niveau énergie; Déclin luminescence; Conversion fréquence; Sodium Ytterbium Yttrium Fluorure Mixte; Addition thulium; Spectre résolution temporelle; Dimension particule; Nanocristal</FD>
<ED>Photoluminescence; Doping; Multi-photon processes; Excitation spectrum; Chemical composition; Transmission electron microscopy; Energy levels; Luminescence decay; Frequency conversion; Sodium Ytterbium Yttrium Fluorides Mixed; Thulium additions; Time resolved spectra; Particle size; Nanocrystal</ED>
<SD>Doping; Espectro excitación; Decadencia luminiscencia; Conversión frecuencia; Mixto; Nanocristal</SD>
<LO>INIST-14666.354000190345120450</LO>
<ID>11-0318723</ID>
</server>
</inist>
</record>
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