Structural and optical spectroscopy of LiNbO3:Tm nanocrystals embedded in a SiO2 glass matrix
Identifieur interne : 000551 ( Pascal/Corpus ); précédent : 000550; suivant : 000552Structural and optical spectroscopy of LiNbO3:Tm nanocrystals embedded in a SiO2 glass matrix
Auteurs : M. P. F. Graca ; M. Peres ; M. A. Valente ; A. J. Neves ; T. MonteiroSource :
- Journal of non-crystalline solids [ 0022-3093 ] ; 2008.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Transparent SiO2:Li2O:Nb2O5 glass doped with Tm3+ has been prepared by the sol-gel method, and heat-treated in air (HT) at temperatures between 500 and 800 °C. X-ray diffraction (XRD) patterns and Raman spectroscopy show SiO2 and LiNbO3 phases in samples HT above 650 °C, and a NbTmO4 phase for T > 750 °C. The XRD SEM analysis show increasing particle size and number with the increase of HT temperature. Intra-4f12 transitions due to Tm3+ ion dispersed in the matrix are observed in samples with T>650°C. The luminescence is dominated by the 1G4→3F4 (∼650nm), 1D2→3F3 (∼780nm), 3 H4 → 3H6 (∼800 nm), 3H5 → 3H6 (∼1200 nm) and 3H4 → 3F4 (∼1500 nm) transitions under resonant excitation to the ion levels.
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Format Inist (serveur)
NO : | PASCAL 09-0061403 INIST |
---|---|
ET : | Structural and optical spectroscopy of LiNbO3:Tm nanocrystals embedded in a SiO2 glass matrix |
AU : | GRACA (M. P. F.); PERES (M.); VALENTE (M. A.); NEVES (A. J.); MONTEIRO (T.) |
AF : | Physics Department (13N), Aveiro University, Campus Universitário de Santiago/3800-193 Aveiro/Portugal (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of non-crystalline solids; ISSN 0022-3093; Coden JNCSBJ; Pays-Bas; Da. 2008; Vol. 354; No. 47-51; Pp. 5244-5246; Bibl. 6 ref. |
LA : | Anglais |
EA : | Transparent SiO2:Li2O:Nb2O5 glass doped with Tm3+ has been prepared by the sol-gel method, and heat-treated in air (HT) at temperatures between 500 and 800 °C. X-ray diffraction (XRD) patterns and Raman spectroscopy show SiO2 and LiNbO3 phases in samples HT above 650 °C, and a NbTmO4 phase for T > 750 °C. The XRD SEM analysis show increasing particle size and number with the increase of HT temperature. Intra-4f12 transitions due to Tm3+ ion dispersed in the matrix are observed in samples with T>650°C. The luminescence is dominated by the 1G4→3F4 (∼650nm), 1D2→3F3 (∼780nm), 3 H4 → 3H6 (∼800 nm), 3H5 → 3H6 (∼1200 nm) and 3H4 → 3F4 (∼1500 nm) transitions under resonant excitation to the ion levels. |
CC : | 001B80A07B; 001B70H67B |
FD : | Dopage; Procédé sol gel; Traitement thermique; Diffraction RX; Spectre Raman; Microscopie électronique balayage; Dimension particule; Photoluminescence; Transfert énergie; Transition niveau énergie; Impureté; Addition thulium; Niobate de lithium; Nanocristal; LiNbO3 |
ED : | Doping; Sol-gel process; Heat treatments; XRD; Raman spectra; Scanning electron microscopy; Particle size; Photoluminescence; Energy transfer; Energy-level transitions; Impurities; Thulium additions; Lithium niobates; Nanocrystal |
SD : | Doping; Nanocristal |
LO : | INIST-14572.354000184407360530 |
ID : | 09-0061403 |
Links to Exploration step
Pascal:09-0061403Le document en format XML
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:Tm nanocrystals embedded in a SiO<sub>2</sub>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Structural and optical spectroscopy of LiNbO<sub>3</sub>
:Tm nanocrystals embedded in a SiO<sub>2</sub>
glass matrix</title>
<author><name sortKey="Graca, M P F" sort="Graca, M P F" uniqKey="Graca M" first="M. P. F." last="Graca">M. P. F. Graca</name>
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<s3>PRT</s3>
<sZ>1 aut.</sZ>
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</affiliation>
</author>
<author><name sortKey="Peres, M" sort="Peres, M" uniqKey="Peres M" first="M." last="Peres">M. Peres</name>
<affiliation><inist:fA14 i1="01"><s1>Physics Department (13N), Aveiro University, Campus Universitário de Santiago</s1>
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<s3>PRT</s3>
<sZ>1 aut.</sZ>
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</affiliation>
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<author><name sortKey="Valente, M A" sort="Valente, M A" uniqKey="Valente M" first="M. A." last="Valente">M. A. Valente</name>
<affiliation><inist:fA14 i1="01"><s1>Physics Department (13N), Aveiro University, Campus Universitário de Santiago</s1>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<author><name sortKey="Monteiro, T" sort="Monteiro, T" uniqKey="Monteiro T" first="T." last="Monteiro">T. Monteiro</name>
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<s2>3800-193 Aveiro</s2>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<series><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
<idno type="ISSN">0022-3093</idno>
<imprint><date when="2008">2008</date>
</imprint>
</series>
</biblStruct>
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<seriesStmt><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
<idno type="ISSN">0022-3093</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Doping</term>
<term>Energy transfer</term>
<term>Energy-level transitions</term>
<term>Heat treatments</term>
<term>Impurities</term>
<term>Lithium niobates</term>
<term>Nanocrystal</term>
<term>Particle size</term>
<term>Photoluminescence</term>
<term>Raman spectra</term>
<term>Scanning electron microscopy</term>
<term>Sol-gel process</term>
<term>Thulium additions</term>
<term>XRD</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Dopage</term>
<term>Procédé sol gel</term>
<term>Traitement thermique</term>
<term>Diffraction RX</term>
<term>Spectre Raman</term>
<term>Microscopie électronique balayage</term>
<term>Dimension particule</term>
<term>Photoluminescence</term>
<term>Transfert énergie</term>
<term>Transition niveau énergie</term>
<term>Impureté</term>
<term>Addition thulium</term>
<term>Niobate de lithium</term>
<term>Nanocristal</term>
<term>LiNbO3</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en">Transparent SiO<sub>2</sub>
:Li<sub>2</sub>
O:Nb<sub>2</sub>
O<sub>5</sub>
glass doped with Tm<sup>3+</sup>
has been prepared by the sol-gel method, and heat-treated in air (HT) at temperatures between 500 and 800 °C. X-ray diffraction (XRD) patterns and Raman spectroscopy show SiO<sub>2</sub>
and LiNbO<sub>3</sub>
phases in samples HT above 650 °C, and a NbTmO<sub>4</sub>
phase for T > 750 °C. The XRD SEM analysis show increasing particle size and number with the increase of HT temperature. Intra-4f<sup>12</sup>
transitions due to Tm<sup>3+</sup>
ion dispersed in the matrix are observed in samples with T>650°C. The luminescence is dominated by the <sup>1</sup>
G<sub>4</sub>
→<sup>3</sup>
F<sub>4</sub>
(∼650nm), <sup>1</sup>
D<sub>2</sub>
→<sup>3</sup>
F<sub>3</sub>
(∼780nm), <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼800 nm), <sup>3</sup>
H<sub>5</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼1200 nm) and <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
F<sub>4</sub>
(∼1500 nm) transitions under resonant excitation to the ion levels.</div>
</front>
</TEI>
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<fA08 i1="01" i2="1" l="ENG"><s1>Structural and optical spectroscopy of LiNbO<sub>3</sub>
:Tm nanocrystals embedded in a SiO<sub>2</sub>
glass matrix</s1>
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<fA11 i1="01" i2="1"><s1>GRACA (M. P. F.)</s1>
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<fA11 i1="02" i2="1"><s1>PERES (M.)</s1>
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<fA14 i1="01"><s1>Physics Department (13N), Aveiro University, Campus Universitário de Santiago</s1>
<s2>3800-193 Aveiro</s2>
<s3>PRT</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
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<fA60><s1>P</s1>
</fA60>
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<fC01 i1="01" l="ENG"><s0>Transparent SiO<sub>2</sub>
:Li<sub>2</sub>
O:Nb<sub>2</sub>
O<sub>5</sub>
glass doped with Tm<sup>3+</sup>
has been prepared by the sol-gel method, and heat-treated in air (HT) at temperatures between 500 and 800 °C. X-ray diffraction (XRD) patterns and Raman spectroscopy show SiO<sub>2</sub>
and LiNbO<sub>3</sub>
phases in samples HT above 650 °C, and a NbTmO<sub>4</sub>
phase for T > 750 °C. The XRD SEM analysis show increasing particle size and number with the increase of HT temperature. Intra-4f<sup>12</sup>
transitions due to Tm<sup>3+</sup>
ion dispersed in the matrix are observed in samples with T>650°C. The luminescence is dominated by the <sup>1</sup>
G<sub>4</sub>
→<sup>3</sup>
F<sub>4</sub>
(∼650nm), <sup>1</sup>
D<sub>2</sub>
→<sup>3</sup>
F<sub>3</sub>
(∼780nm), <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼800 nm), <sup>3</sup>
H<sub>5</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼1200 nm) and <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
F<sub>4</sub>
(∼1500 nm) transitions under resonant excitation to the ion levels.</s0>
</fC01>
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</fC02>
<fC02 i1="02" i2="3"><s0>001B70H67B</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Dopage</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Doping</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Doping</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Procédé sol gel</s0>
<s5>03</s5>
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<s5>03</s5>
</fC03>
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<s5>04</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>Heat treatments</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Diffraction RX</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>XRD</s0>
<s5>05</s5>
</fC03>
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<s5>06</s5>
</fC03>
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<s5>06</s5>
</fC03>
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<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Scanning electron microscopy</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Dimension particule</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Particle size</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Photoluminescence</s0>
<s5>09</s5>
</fC03>
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<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Transfert énergie</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Energy transfer</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Transition niveau énergie</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Energy-level transitions</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Impureté</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Impurities</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Addition thulium</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Thulium additions</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Niobate de lithium</s0>
<s2>NK</s2>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Lithium niobates</s0>
<s2>NK</s2>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Nanocristal</s0>
<s5>16</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Nanocrystal</s0>
<s5>16</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Nanocristal</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>LiNbO3</s0>
<s4>INC</s4>
<s5>52</s5>
</fC03>
<fN21><s1>047</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 09-0061403 INIST</NO>
<ET>Structural and optical spectroscopy of LiNbO<sub>3</sub>
:Tm nanocrystals embedded in a SiO<sub>2</sub>
glass matrix</ET>
<AU>GRACA (M. P. F.); PERES (M.); VALENTE (M. A.); NEVES (A. J.); MONTEIRO (T.)</AU>
<AF>Physics Department (13N), Aveiro University, Campus Universitário de Santiago/3800-193 Aveiro/Portugal (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of non-crystalline solids; ISSN 0022-3093; Coden JNCSBJ; Pays-Bas; Da. 2008; Vol. 354; No. 47-51; Pp. 5244-5246; Bibl. 6 ref.</SO>
<LA>Anglais</LA>
<EA>Transparent SiO<sub>2</sub>
:Li<sub>2</sub>
O:Nb<sub>2</sub>
O<sub>5</sub>
glass doped with Tm<sup>3+</sup>
has been prepared by the sol-gel method, and heat-treated in air (HT) at temperatures between 500 and 800 °C. X-ray diffraction (XRD) patterns and Raman spectroscopy show SiO<sub>2</sub>
and LiNbO<sub>3</sub>
phases in samples HT above 650 °C, and a NbTmO<sub>4</sub>
phase for T > 750 °C. The XRD SEM analysis show increasing particle size and number with the increase of HT temperature. Intra-4f<sup>12</sup>
transitions due to Tm<sup>3+</sup>
ion dispersed in the matrix are observed in samples with T>650°C. The luminescence is dominated by the <sup>1</sup>
G<sub>4</sub>
→<sup>3</sup>
F<sub>4</sub>
(∼650nm), <sup>1</sup>
D<sub>2</sub>
→<sup>3</sup>
F<sub>3</sub>
(∼780nm), <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼800 nm), <sup>3</sup>
H<sub>5</sub>
→ <sup>3</sup>
H<sub>6</sub>
(∼1200 nm) and <sup>3</sup>
H<sub>4</sub>
→ <sup>3</sup>
F<sub>4</sub>
(∼1500 nm) transitions under resonant excitation to the ion levels.</EA>
<CC>001B80A07B; 001B70H67B</CC>
<FD>Dopage; Procédé sol gel; Traitement thermique; Diffraction RX; Spectre Raman; Microscopie électronique balayage; Dimension particule; Photoluminescence; Transfert énergie; Transition niveau énergie; Impureté; Addition thulium; Niobate de lithium; Nanocristal; LiNbO3</FD>
<ED>Doping; Sol-gel process; Heat treatments; XRD; Raman spectra; Scanning electron microscopy; Particle size; Photoluminescence; Energy transfer; Energy-level transitions; Impurities; Thulium additions; Lithium niobates; Nanocrystal</ED>
<SD>Doping; Nanocristal</SD>
<LO>INIST-14572.354000184407360530</LO>
<ID>09-0061403</ID>
</server>
</inist>
</record>
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