Abstract
Red-emitting EU 3+-activated (Y 0.95-sAl s)VO 4 (0 < × ≤ 0.12) nanophosphors with the particle size of ~30 nm and the high crystallinity have been successfully synthesized by a hydrothermal reaction. In the synthetic process, deionized water as a solvent and ethylene glycol as a capping agent were used. The crystalline phase, particle morphology, and the photoluminescence properties of the excitation spectrum, emission intensity, color coordinates and decay time, of the prepared (Y 0.95-sAl s)VO 4:Eu 3+ nanophosphors were compared with those of the YVO 4:Eu 3+. Under 147 nm excitation, (Y 0.95-sAl s)VO 4 nanophosphors showed strong red luminescence due to the $ transition of Eu 3+ at 619 nm. The luminescence intensity of YVO 4:Eu 3+ enhanced with partial substitution of Al 3+ for Y 3+ and the maximum emission intensity was accomplished at the Al 3+ content of 10 mol%. By the addition of Al 3+, decay time of the (Y 1Al)VO 4:Eu 3+ nanophosphor was decreased in comparison with that of the YVO 4:Eu 3+ nanophosphor. Also, the substitution of Al 3+ for Y 3+ invited the improvement of color coordinates due to the increase of R/O ratio in emission intensity. For the formation of transparent layer, the red nanophosphors were fabricated to the paste with ethyl celluloses, anhydrous terpineol, ethanol and deionized water.By screen printing method, a transparent red phosphor layer was formed onto a glass substrate from the paste. The transparent red phosphor layer exhibited the red emission at 619 nm under 147 nm excitation and the transmittance of ~80% at 600 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 103-109 |
| Number of pages | 7 |
| Journal | Korean Journal of Materials Research |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2012 Feb 1 |
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Keywords
- (Y Al)VO :Eu
- Hydrothermal
- Nanophosphors
- Transparent luminescent layer
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Synthesis and photoluminescence properties of red-emitting (Y,Al)VO 4 : Eu 3+ nanophosphors. / Seo, Jung Hyun; Choi, Sung Ho; Nahm, Sahn; Jung, Ha Kyun.
In: Korean Journal of Materials Research, Vol. 22, No. 2, 01.02.2012, p. 103-109.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis and photoluminescence properties of red-emitting (Y,Al)VO 4
T2 - Eu 3+ nanophosphors
AU - Seo, Jung Hyun
AU - Choi, Sung Ho
AU - Nahm, Sahn
AU - Jung, Ha Kyun
PY - 2012/2/1
Y1 - 2012/2/1
N2 - Red-emitting EU 3+-activated (Y 0.95-sAl s)VO 4 (0 < × ≤ 0.12) nanophosphors with the particle size of ~30 nm and the high crystallinity have been successfully synthesized by a hydrothermal reaction. In the synthetic process, deionized water as a solvent and ethylene glycol as a capping agent were used. The crystalline phase, particle morphology, and the photoluminescence properties of the excitation spectrum, emission intensity, color coordinates and decay time, of the prepared (Y 0.95-sAl s)VO 4:Eu 3+ nanophosphors were compared with those of the YVO 4:Eu 3+. Under 147 nm excitation, (Y 0.95-sAl s)VO 4 nanophosphors showed strong red luminescence due to the $ transition of Eu 3+ at 619 nm. The luminescence intensity of YVO 4:Eu 3+ enhanced with partial substitution of Al 3+ for Y 3+ and the maximum emission intensity was accomplished at the Al 3+ content of 10 mol%. By the addition of Al 3+, decay time of the (Y 1Al)VO 4:Eu 3+ nanophosphor was decreased in comparison with that of the YVO 4:Eu 3+ nanophosphor. Also, the substitution of Al 3+ for Y 3+ invited the improvement of color coordinates due to the increase of R/O ratio in emission intensity. For the formation of transparent layer, the red nanophosphors were fabricated to the paste with ethyl celluloses, anhydrous terpineol, ethanol and deionized water.By screen printing method, a transparent red phosphor layer was formed onto a glass substrate from the paste. The transparent red phosphor layer exhibited the red emission at 619 nm under 147 nm excitation and the transmittance of ~80% at 600 nm.
AB - Red-emitting EU 3+-activated (Y 0.95-sAl s)VO 4 (0 < × ≤ 0.12) nanophosphors with the particle size of ~30 nm and the high crystallinity have been successfully synthesized by a hydrothermal reaction. In the synthetic process, deionized water as a solvent and ethylene glycol as a capping agent were used. The crystalline phase, particle morphology, and the photoluminescence properties of the excitation spectrum, emission intensity, color coordinates and decay time, of the prepared (Y 0.95-sAl s)VO 4:Eu 3+ nanophosphors were compared with those of the YVO 4:Eu 3+. Under 147 nm excitation, (Y 0.95-sAl s)VO 4 nanophosphors showed strong red luminescence due to the $ transition of Eu 3+ at 619 nm. The luminescence intensity of YVO 4:Eu 3+ enhanced with partial substitution of Al 3+ for Y 3+ and the maximum emission intensity was accomplished at the Al 3+ content of 10 mol%. By the addition of Al 3+, decay time of the (Y 1Al)VO 4:Eu 3+ nanophosphor was decreased in comparison with that of the YVO 4:Eu 3+ nanophosphor. Also, the substitution of Al 3+ for Y 3+ invited the improvement of color coordinates due to the increase of R/O ratio in emission intensity. For the formation of transparent layer, the red nanophosphors were fabricated to the paste with ethyl celluloses, anhydrous terpineol, ethanol and deionized water.By screen printing method, a transparent red phosphor layer was formed onto a glass substrate from the paste. The transparent red phosphor layer exhibited the red emission at 619 nm under 147 nm excitation and the transmittance of ~80% at 600 nm.
KW - (Y Al)VO :Eu
KW - Hydrothermal
KW - Nanophosphors
KW - Transparent luminescent layer
UR - http://www.scopus.com/inward/record.url?scp=84861764677&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861764677&partnerID=8YFLogxK
U2 - 10.3740/MRSK.2012.22.2.103
DO - 10.3740/MRSK.2012.22.2.103
M3 - Article
VL - 22
SP - 103
EP - 109
JO - Korean Journal of Materials Research
JF - Korean Journal of Materials Research
SN - 1225-0562
IS - 2
ER -