Abstract
This paper presents the optical characterization of Nd{sup 3+} ions in nanostructured SiO{sub 2}-Na{sub 2}CO{sub 3}-Al{sub 2}O{sub 3}-B{sub 2}O{sub 3} (SNAB) CdS glass, synthesized by fusion. Radiative properties of the glass were determined by absorption, luminescence spectroscopy and lifetime measurements. Nd{sup 3+} emission enhancement and quenching were investigated in the presence of CdS nanocrystals. Nd{sup 3+}-emission quenching was attributed to upconversion mechanisms and nonradiative processes such as multiphonon decay and energy transfer, while the Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. Changes in the chemical environment around CdS nanocrystals were also confirmed by Judd-Ofelt calculations. - Highlights: {yields} Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. {yields} Nd{sup 3+}-emission quenching was due to upconversion, multiphonon decay and energy transfer. {yields} Judd-Ofelt parameters were calculated considering the presence of CdS nanocrystals. {yields} Changes in the chemical environment of Nd{sup 3+} ions around CdS nanocrystals were evidenced.
Serqueira, E O;
Dantas, N O;
[1]
Anjos, V;
[2]
Pereira-da-Silva, M A;
[3]
Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)];
Bell, M J.V.,
[2]
- Laboratorio de Novos Materiais Isolantes e Semicondutores (LNMIS), Instituto de Fisica, Universidade Federal de Uberlandia, 38400-902 Uberlandia-MG (Brazil)
- Grupo de Espectroscopia de Materiais, Departamento de Fisica, Universidade Federal de Juiz de Fora, 36036-330 Juiz de Fora-MG (Brazil)
- Instituto de Fisica de Sao Carlos, USP, Sao Carlos, SP 13560-250 (Brazil)
Citation Formats
Serqueira, E O, Dantas, N O, Anjos, V, Pereira-da-Silva, M A, Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)], and Bell, M J.V.,.
Optical spectroscopy of Nd{sup 3+} ions in a nanostructured glass matrix.
Netherlands: N. p.,
2011.
Web.
doi:10.1016/j.jlumin.2011.03.032.
Serqueira, E O, Dantas, N O, Anjos, V, Pereira-da-Silva, M A, Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)], & Bell, M J.V.,.
Optical spectroscopy of Nd{sup 3+} ions in a nanostructured glass matrix.
Netherlands.
https://doi.org/10.1016/j.jlumin.2011.03.032
Serqueira, E O, Dantas, N O, Anjos, V, Pereira-da-Silva, M A, Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)], and Bell, M J.V.,.
2011.
"Optical spectroscopy of Nd{sup 3+} ions in a nanostructured glass matrix."
Netherlands.
https://doi.org/10.1016/j.jlumin.2011.03.032.
@misc{etde_21493917,
title = {Optical spectroscopy of Nd{sup 3+} ions in a nanostructured glass matrix}
author = {Serqueira, E O, Dantas, N O, Anjos, V, Pereira-da-Silva, M A, Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)], and Bell, M J.V.,}
abstractNote = {This paper presents the optical characterization of Nd{sup 3+} ions in nanostructured SiO{sub 2}-Na{sub 2}CO{sub 3}-Al{sub 2}O{sub 3}-B{sub 2}O{sub 3} (SNAB) CdS glass, synthesized by fusion. Radiative properties of the glass were determined by absorption, luminescence spectroscopy and lifetime measurements. Nd{sup 3+} emission enhancement and quenching were investigated in the presence of CdS nanocrystals. Nd{sup 3+}-emission quenching was attributed to upconversion mechanisms and nonradiative processes such as multiphonon decay and energy transfer, while the Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. Changes in the chemical environment around CdS nanocrystals were also confirmed by Judd-Ofelt calculations. - Highlights: {yields} Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. {yields} Nd{sup 3+}-emission quenching was due to upconversion, multiphonon decay and energy transfer. {yields} Judd-Ofelt parameters were calculated considering the presence of CdS nanocrystals. {yields} Changes in the chemical environment of Nd{sup 3+} ions around CdS nanocrystals were evidenced.}
doi = {10.1016/j.jlumin.2011.03.032}
journal = []
issue = {7}
volume = {131}
place = {Netherlands}
year = {2011}
month = {Jul}
}
title = {Optical spectroscopy of Nd{sup 3+} ions in a nanostructured glass matrix}
author = {Serqueira, E O, Dantas, N O, Anjos, V, Pereira-da-Silva, M A, Centro Universitario Central Paulista, UNICEP, Sao Carlos, SP 13563-470 (Brazil)], and Bell, M J.V.,}
abstractNote = {This paper presents the optical characterization of Nd{sup 3+} ions in nanostructured SiO{sub 2}-Na{sub 2}CO{sub 3}-Al{sub 2}O{sub 3}-B{sub 2}O{sub 3} (SNAB) CdS glass, synthesized by fusion. Radiative properties of the glass were determined by absorption, luminescence spectroscopy and lifetime measurements. Nd{sup 3+} emission enhancement and quenching were investigated in the presence of CdS nanocrystals. Nd{sup 3+}-emission quenching was attributed to upconversion mechanisms and nonradiative processes such as multiphonon decay and energy transfer, while the Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. Changes in the chemical environment around CdS nanocrystals were also confirmed by Judd-Ofelt calculations. - Highlights: {yields} Nd{sup 3+}-emission enhancement was due to energy transfer from the CdS nanocrystals. {yields} Nd{sup 3+}-emission quenching was due to upconversion, multiphonon decay and energy transfer. {yields} Judd-Ofelt parameters were calculated considering the presence of CdS nanocrystals. {yields} Changes in the chemical environment of Nd{sup 3+} ions around CdS nanocrystals were evidenced.}
doi = {10.1016/j.jlumin.2011.03.032}
journal = []
issue = {7}
volume = {131}
place = {Netherlands}
year = {2011}
month = {Jul}
}