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1. College of Physics Science
2. Technology, Hebei University
收稿日期:2008-10-24,
修回日期:1900-01-02,
网络出版日期:2009-10-30,
纸质出版日期:2009-10-30
移动端阅览
李盼来, 杨志平, 王 颖, 等. LiMBO3 : Dy3+材料的发光特性[J]. 发光学报, 2009,30(5):606-609.
LI Pan-lai, YANG Zhi-ping, WANG Ying, et al. Luminescent Characteristics of LiM(M=Ca, Sr, Ba)BO3 : Dy3+ Phosphor[J]. Chinese journal of luminescence, 2009, 30(5): 606-609.
采用固相法制备了Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
材料
并研究了材料的发光特性。Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
材料的发射光谱均呈多峰发射
对应于Ca
Sr
Ba
其主发射峰分别是Dy
3+
的
4
F
9/2
→
6
H
15/2
(484
486
486 nm)
6
H
13/2
(577
578
578 nm)和
6
H
11/2
(668
668
666 nm)跃迁。监测黄色发射峰时
所得激发光 谱峰值位置相同
主激发峰分别为331
368
397
433
462
478 nm
对应Dy
3+
的
6
H
15/2
→
4
D
7/2
6
P
7/2
6
M
21/2
4
G
11/2
4
I
15/2
和
6
F
9/2
跃迁。研究了敏化剂Ce
3+
及电荷补偿剂Li
+
、Na
+
和K
+
对Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
材料发光强度的影响。结果显示:加入敏化剂Ce
3+
提高了材料的发光强度
发光强度最大处对应的Ce
3+
浓度为3%;加入电荷补偿剂Li
+
、Na
+
和K
+
后
材料的发光强度也得到了明显提高
但发光强度最大处对应的Li
+
、Na
+
和K
+
浓度不同
依次为4%、4%和3%。
Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
phosphors were synthesized by solid state reaction
and their luminescet characteristics were investigated. The emission spectra of Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
phosphors show several bands
and the main emission peaks corresponding to Ca
Sr and Ba ion are the
4
F
9/2
→
6
H
15/2
(484
486 and 486 nm)
6
H
13/2
(577
578 and 578 nm) and
6
H
11/2
(668
668 and 666 nm) typical transitions of Dy
3+
. The excitation spectra for the yellow emission have the same excitation peaks located at 331
368
397
433
462 and 478 nm
corresponding to the
6
H
15/2
→
4
D
7/2
6
P
7/2
6
M
21/2
4
G
11/2
4
I
15/2
and
6
F
9/2
transitions of Dy
3+
. The effects of doping Ce
3+
or Li
+
Na
+
K
+
on the luminescence intensities of Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
phosphors were studied
and the results showed that the intensities of Li
M(M
=Ca
Sr
Ba)BO
3
: Dy
3+
phosphors are obviously effected. The intensities increase with increasing Ce
3+
concentration and reache the maximum value at 3%. Under the condition of doping Li
+
Na
+
and K
+
the intensities are enhanced
however
the charge compensation concentration corresponding to the maximum emission intensity is different with different charge compensation ions
and the optimal concentrations are 4%
4% and 3% corresponding to Li
+
Na
+
and K
+
respectively.
. Li Panlai, Yang Zhiping, Wang Zhijun, et al. Luminescence characteristics of Eu3+ activated borate phosphor for white light emitting diode [J]. Chin. Phys. B, 2008, 17 (5):1907-1910.
. Park J K, Kim C H, Park S H, et al. Application of strontium silicate yellow phosphor for white light-emitting diodes [J]. Appl. Phys. Lett., 2004, 84 (10):1647-1649.
. Kim J S, Jeon P E, Choi J C, et al. Warm-white-light emitting diode utilizing a single-phsae full-color Ba3MgSi2O8 : Eu2+, Mn2+ phosphor [J]. Appl. Phys. Lett., 2004, 84 (15):2931-2933.
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. Li Panlai, Yang Zhiping, Pang Libin, et al. Luminescent characteristics of Ba3Y2(BO3)4 : Eu3+ phosphor for white LED [J]. J. Rare Earths, 2008, 26 (1):44-47.
. Hu Yunsheng, Zhuang Weidong, Ye Hongqi, et al. A novel red phosphor for white light emitting diodes [J]. J. Alloys Compd., 2005, 390 (1-2):226-229.
. Zhang Guoyou, Zhao Xiaoxia, Meng Qingyu, et al. Preparation and properties of red emitting phosphor Gd2MO3O4 : Eu3+ for white LEDs [J]. Chin. J. Lumin.(发光学报), 2007, 28 (1):57-61 (in Chinese).
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. Yang Yi, Jin Shangzhong, Shen Changyu, et al. Spectral properties of alkaline earth composite silicate phosphors for white LED [J]. Chin. J. Lumin.(发光学报), 2008, 29 (5):800-804 (in Chinese).
. LI Xuezheng, Wang Dajian, Gu Tiecheng, et al. Sol spray-microwave cancining and luminescence properties of Ba3MgSi2O8 hosted phosphors for white light emitting diodes [J]. Chin. J. Lumin.(发光学报), 2008, 29 (6):989-995 (in Chinese).
. Li Panlai, Yang Zhiping, Wang Zhijun, et al. White-light-emitting diodes of UV-based Sr3Y2(BO3)4 : Dy3+ and luminescent properties [J]. Mater. Lett., 2008, 62 (10-11):1455-1457.
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