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云南民族大学 化学与环境学院民族地区矿产资源综合利用重点实验室,云南 昆明,650500
纸质出版日期:2017-6-5,
收稿日期:2016-11-28,
修回日期:2017-2-6,
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张秋函, 谭慧英, 刘永冲等. 纳米纤维状Sr<sub>3</sub>Al<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub>:Eu<sup>2+</sup>,Tm<sup>3+</sup>的白色长余辉性能[J]. 发光学报, 2017,38(6): 697-701
ZHANG Qiu-han, TAN Hui-ying, LIU Yong-chong etc. White Long Persistent Phenomenon from Sr<sub>3</sub>Al<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub>:Eu<sup>2+</sup>, Tm<sup>3+</sup> Nano-fiber[J]. Chinese Journal of Luminescence, 2017,38(6): 697-701
张秋函, 谭慧英, 刘永冲等. 纳米纤维状Sr<sub>3</sub>Al<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub>:Eu<sup>2+</sup>,Tm<sup>3+</sup>的白色长余辉性能[J]. 发光学报, 2017,38(6): 697-701 DOI: 10.3788/fgxb20173806.0697.
ZHANG Qiu-han, TAN Hui-ying, LIU Yong-chong etc. White Long Persistent Phenomenon from Sr<sub>3</sub>Al<sub>2</sub>O<sub>5</sub>Cl<sub>2</sub>:Eu<sup>2+</sup>, Tm<sup>3+</sup> Nano-fiber[J]. Chinese Journal of Luminescence, 2017,38(6): 697-701 DOI: 10.3788/fgxb20173806.0697.
采用高温固相法在800℃下制备出系列白色长余辉荧光粉Sr
3
Al
2
O
5
Cl
2
:Eu
2+
,Tm
3+
,并研究了它们的结构、形貌及发光性能。样品Sr
2.91
Al
2
O
5
Cl
2
:0.04Eu
2+
,0.05 Tm
3+
具有单一晶相和纳米纤维结构。该样品在紫外光激发下表现出两个很强的宽带发射(分别位于~448 nm和~590 nm)。它的余辉寿命大约是20 min。利用此种荧光粉所制作出的白光LED器件表现出很强的白光发射。
White long persistent phosphors
Sr
3
Al
2
O
5
Cl
2
∶Eu
2+
Tm
3+
have been successfully prepared by the solid state reaction at 800 ℃. The as-prepared sample Sr
2.91
Al
2
O
5
Cl
2
∶0.04Eu
2+
0.05 Tm
3+
shares single phase and regular nano-fiber morphology. This sample exhibits two broad emission bands located at ~ 448 nm and ~ 590 nm
respectively
and its white persistent duration is about 20 min (
>
0.35 mcd/m
2
). At last
intense white light can be found from the white light-emitting diode with Sr
2.91
Al
2
O
5
Cl
2
∶0.04Eu
2+
0.05 Tm
3+
.
长余辉性能荧光粉发光性能
long persistent propertiesphosphorsphoto-luminescent properties
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WEI R P, JU Z H, MA J X, et al.. A novel white afterglow phosphorescent phosphor Ca3SnSi2O9:Dy3+[J]. J. Alloy Compd., 2009, 486(1-2):L17-L20.
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LIU B, SHI C S, QI Z M. Potential white-light long-lasting phosphor:Dy3+-doped aluminate[J]. Appl. Phys. Lett., 2005, 86(19):191111-1-3.
GUO H J, CHEN W B, ZENG W, et al.. A long-lasting phosphor Ba3P4O13:Eu2+[J]. ECS Solid State Lett., 2015, 4(1):R1-R3.
CHEN R, HU Y H, CHEN L, et al.. Luminescent properties of a novel afterglow phosphor Sr3Al2O5Cl2:Eu2+, Ce3+[J]. Ceram. Int., 2014, 40(6):8229-8236.
DUTCZAK D, RONDA C, MEIJERINK A, et al.. Red luminescence and persistent luminescence of Sr3Al2O5Cl2:Eu2+, Dy3+[J]. J. Lumin., 2013, 141:150-154.
LI Y Q, WANG Y H, GONG Y, et al.. Design, synthesis and characterization of an orange-yellow long persistent phosphor:Sr3Al2O5Cl2:Eu2+, Tm3+[J]. Opt. Express, 2010, 18(24):24853-24858.
ZHANG Q H, RONG M Z, TAN H Y, et al.. Luminescent properties of the white long afterglow persistent phosphors:Sr3Al2O5Cl2:Eu2+, Dy3+[J]. J. Mater. Sci. Mater. Electron., 2016, 27(12):13093-13098, doi:10.1007/s10854-016-5453-x.
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