Abstract
Microplate readers are versatile devices that can rapidly measure the photoluminescence intensities of multiple samples, and are widely used in biological chemistry. In this work, using a commercial microplate reader, we attempted to optimize the atomic compositions of green-emitting phosphor Y1−x−yCexTbyBO3 and red-emitting phosphor Y1−x−y−zCexTbyEuzBO3. We filled 48 individual wells of an alumina microplate with aqueous solutions of nitrates of Y3+, Ce3+, Tb3+, and Eu3+ with different compositions, and then added an aqueous solution of boric acid to each well. After drying, the microplate was heated at 550 °C for 2 h in air, and then at 1100 °C for 3 h in a reducing atmosphere. Y1−x−yCexTbyBO3 absorbed near ultraviolet light through 4f → 5d transitions of Ce3+ and emitted green fluorescence corresponding to 4f → 4f transitions of Tb3+ through Ce3+ → Tb3+ energy transfer. Moreover, Y1−x−y−zCexTbyEuzBO3 emitted red fluorescence corresponding to 4f → 4f transitions of Eu3+ through Ce3+ → Tb3+ → Eu3+ energy transfer under near-ultraviolet light. Measurement of the photoluminescence intensity of each well by a microplate reader revealed that the optimized green and red phosphors were Y0.835Ce0.025Tb0.14BO3 and Y0.535Ce0.005Tb0.45Eu0.01BO3, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 17586-17592 |
| Number of pages | 7 |
| Journal | RSC Advances |
| Volume | 7 |
| Issue number | 29 |
| DOIs | |
| Publication status | Published - 2017 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
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Combinatorial optimization of the atomic compositions for green-emitting YBO3 : Ce3+,Tb3+ and red-emitting YBO3:Ce3+,Tb3+,Eu3+ phosphors using a microplate reader. / Yano, Kohei; Takeshita, Satoru; Iso, Yoshiki; Isobe, Tetsuhiko.
In: RSC Advances, Vol. 7, No. 29, 2017, p. 17586-17592.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Combinatorial optimization of the atomic compositions for green-emitting YBO3
T2 - Ce3+,Tb3+ and red-emitting YBO3:Ce3+,Tb3+,Eu3+ phosphors using a microplate reader
AU - Yano, Kohei
AU - Takeshita, Satoru
AU - Iso, Yoshiki
AU - Isobe, Tetsuhiko
PY - 2017
Y1 - 2017
N2 - Microplate readers are versatile devices that can rapidly measure the photoluminescence intensities of multiple samples, and are widely used in biological chemistry. In this work, using a commercial microplate reader, we attempted to optimize the atomic compositions of green-emitting phosphor Y1−x−yCexTbyBO3 and red-emitting phosphor Y1−x−y−zCexTbyEuzBO3. We filled 48 individual wells of an alumina microplate with aqueous solutions of nitrates of Y3+, Ce3+, Tb3+, and Eu3+ with different compositions, and then added an aqueous solution of boric acid to each well. After drying, the microplate was heated at 550 °C for 2 h in air, and then at 1100 °C for 3 h in a reducing atmosphere. Y1−x−yCexTbyBO3 absorbed near ultraviolet light through 4f → 5d transitions of Ce3+ and emitted green fluorescence corresponding to 4f → 4f transitions of Tb3+ through Ce3+ → Tb3+ energy transfer. Moreover, Y1−x−y−zCexTbyEuzBO3 emitted red fluorescence corresponding to 4f → 4f transitions of Eu3+ through Ce3+ → Tb3+ → Eu3+ energy transfer under near-ultraviolet light. Measurement of the photoluminescence intensity of each well by a microplate reader revealed that the optimized green and red phosphors were Y0.835Ce0.025Tb0.14BO3 and Y0.535Ce0.005Tb0.45Eu0.01BO3, respectively.
AB - Microplate readers are versatile devices that can rapidly measure the photoluminescence intensities of multiple samples, and are widely used in biological chemistry. In this work, using a commercial microplate reader, we attempted to optimize the atomic compositions of green-emitting phosphor Y1−x−yCexTbyBO3 and red-emitting phosphor Y1−x−y−zCexTbyEuzBO3. We filled 48 individual wells of an alumina microplate with aqueous solutions of nitrates of Y3+, Ce3+, Tb3+, and Eu3+ with different compositions, and then added an aqueous solution of boric acid to each well. After drying, the microplate was heated at 550 °C for 2 h in air, and then at 1100 °C for 3 h in a reducing atmosphere. Y1−x−yCexTbyBO3 absorbed near ultraviolet light through 4f → 5d transitions of Ce3+ and emitted green fluorescence corresponding to 4f → 4f transitions of Tb3+ through Ce3+ → Tb3+ energy transfer. Moreover, Y1−x−y−zCexTbyEuzBO3 emitted red fluorescence corresponding to 4f → 4f transitions of Eu3+ through Ce3+ → Tb3+ → Eu3+ energy transfer under near-ultraviolet light. Measurement of the photoluminescence intensity of each well by a microplate reader revealed that the optimized green and red phosphors were Y0.835Ce0.025Tb0.14BO3 and Y0.535Ce0.005Tb0.45Eu0.01BO3, respectively.
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U2 - 10.1039/c7ra01356f
DO - 10.1039/c7ra01356f
M3 - Article
AN - SCOPUS:85016116008
VL - 7
SP - 17586
EP - 17592
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 29
ER -