浏览全部资源
扫码关注微信
沈阳化工大学 辽宁省稀土化学及应用重点实验室,辽宁 沈阳,110142
纸质出版日期:2016-06-05,
收稿日期:2016-02-03,
修回日期:2016-03-13,
扫 描 看 全 文
肖林久, 耿艳丽, 谢颖等. 紫外激发Ba<sub>2</sub>SiO<sub>4</sub>:Gd<sup>3+</sup>,Tb<sup>3+</sup>的发光性能[J]. 发光学报, 2016,37(6): 644-649
XIAO Lin-jiu, GENG Yan-li, XIE Ying etc. Luminescence Properties of Ba<sub>2</sub>SiO<sub>4</sub>:Gd<sup>3+</sup>,Tb<sup>3+</sup> Under UV Excitation[J]. Chinese Journal of Luminescence, 2016,37(6): 644-649
肖林久, 耿艳丽, 谢颖等. 紫外激发Ba<sub>2</sub>SiO<sub>4</sub>:Gd<sup>3+</sup>,Tb<sup>3+</sup>的发光性能[J]. 发光学报, 2016,37(6): 644-649 DOI: 10.3788/fgxb20163706.0644.
XIAO Lin-jiu, GENG Yan-li, XIE Ying etc. Luminescence Properties of Ba<sub>2</sub>SiO<sub>4</sub>:Gd<sup>3+</sup>,Tb<sup>3+</sup> Under UV Excitation[J]. Chinese Journal of Luminescence, 2016,37(6): 644-649 DOI: 10.3788/fgxb20163706.0644.
采用高温固相法合成了可被紫外光激发的Ba
2
SiO
4
:Gd
3+
Tb
3+
荧光粉。考察了激活离子掺杂量等因素对发光性能的影响。通过X射线衍射(XRD)、荧光(FL)光谱和荧光寿命曲线对所合成样品的结构和发光性能进行表征
研究了Gd
3+
和Tb
3+
的特征吸收波长激发Ba
2
SiO
4
:Gd
3+
Tb
3+
的发光性能。在275nm(Gd
3+
:
8
S
7/2
6
I
J
)激发下
检测到了Tb
3+
的特征发射。通过对比不同Tb
3+
掺杂量下Gd
3+
:
6
P
7/2
能级的衰减曲线
发现随着Tb
3+
掺杂浓度的增加
该能级的荧光寿命不断缩短
表明样品中存在Gd
3+
Tb
3+
的能量传递
传递方式为无辐射共振能量传递。在244nm(Tb
3+
:4f
8
4f
7
5d
1
)激发下
Gd
3+
的掺入使得Tb
3+
的
5
D
3
能级的发射逐渐减弱
5
D
4
能级的发射增强。Gd
3+
的掺入使得544nm(
5
D
4
7
F
5
)处的特征发射增强了59%~128%
结合荧光衰减曲线得出Gd
3+
的掺入对Tb
3+
能级中
5
D
3
5
D
4
与
7
F
6
7
F
0
交叉驰豫有促进作用。
A series of Ba
2
SiO
4
:Gd
3+
Tb
3+
green phosphors were synthesized by solid state reaction. The influence of the factors such as the amount of ion doping on the luminescence properties was investigated. Their structure and luminescence properties were characterized by X-ray diffraction (XRD) analysis
fluorescence spectrometry (FL)
and decay curves. The spectroscopic properties of Ba
2
SiO
4
:Gd
3+
Tb
3+
under the excitation of the characteristic absorption wavelength of Gd
3+
and Tb
3+
were investigated. The emission of Tb
3+
was observed under 275 nm(Gd
3+
:
8
S
7/2
6
I
J
) excitation. By comparing Gd
3+
:
6
P
7/2
energy decay curve with different Tb
3+
doping amount
it is found that the level of fluorescence continuously shorten the service life with the increasing of Tb
3+
concentration
indicating the occurrence of energy transfer from Gd
3+
to Tb
3+
with the mode of nonradiative resonance transfer. Under the excitation of 244 nm (Tb
3+
: 4f
8
4f
7
5d
1
)
the emission intensity of
5
D
3
level decreases
but the
5
D
4
level increases with the doping of Gd
3+
. The emission intensity at 544 nm (
5
D
4
7
F
5
) increases 59%~128% with the doping of Gd
3+
. Combining with the fluorescence decay curves
it is found that the doping of Gd
3+
can promote the cross relaxation of
5
D
3
5
D
4
and
7
F
6
7
F
0
in Tb
3+
.
荧光粉能量传递交叉驰豫Ba2SiO4:Gd3+Tb3+
phosphorsenergy transfercross relaxationBa2SiO4:Gd3+Tb3+
刘春旭,张家骅,吕少哲,等. 纳米Gd2O3:Eu3+中Judd-Ofelt参数的实验确定 [J]. 物理学报, 2004, 53(11):3945-3949. LIU C X, ZHANG J H, LV S Z, et al.. Judd-Ofelt parameters determined experimentally for nanoparticles Gd2O3:Eu3+[J]. Acta Phys. Sinica, 2004, 53(11):3945-3949. (in Chinese)
ZHANG Y, GENG D L, SHANG M M, et al.. Single-composition trichromatic white-emitting Ca9MgNa(PO4)7:Ce3+/Tb3+/Mn2+ phosphors-soft chemical synthesis, luminescence, and energy-transfer properties [J]. Eur. J. Inorg. Chem., 2013, 2013(25):4389-4397.
侯青月,李金凯,段广彬,等. 白光发光二极管用荧光粉的研究进展 [J]. 中国粉体技术, 2015, 21(5):44-47. HOU Q Y, LI J K, DUAN G B, et al.. Progress of research on phosphors for white light emitting diodes [J]. China Powder Sci. Technol., 2015, 21(5):44-47. (in Chinese)
YE S, XIAO F, PAN Y X, et al.. Phosphors in phosphor-converted white light-emitting diodes: recent advances in materials, techniques and properties [J]. Mater. Sci. Eng., 2010, 71(1):1-34.
曾琦华,张信果,梁宏斌,等. 白光LED用荧光粉的研究进展 [J]. 中国稀土学报, 2011, 29(1):8-17. ZENG Q H, ZHANG X G, LIANG H B, et al.. Progress of research on phosphors for white-light emitting diodes [J]. J. Chin. Rare Earth Soc., 2011, 29(1):8-17. (in Chinese).
LIU Y, LIU G X, WANG J X, et al.. Single-component and warm-white-emitting phosphor NaGd(WO4)2:Tm3+,Dy3+, Eu3+: synthesis, luminescence, energy transfer, and tunable color [J]. Inorg. Chem., 2014, 53(21):11457-11466.
ZHANG X G, ZHOU L Y, PANG Q, et al.. Tunable luminescence and Ce3+Tb3+ Eu3+ energy transfer of broadband-excited and narrow line red emitting Y2SiO5:Ce3+, Tb3+, Eu3+ phosphor [J]. J. Phys. Chem. C, 2014, 118(14):7591-7598.
谢飞燕,董志月,刁贵强,等. 一种新型的白光LED用绿色荧光粉Ca8MgLu(PO4)7:Tb3+[J]. 发光学报, 2015, 36(10):1132-1136. XIE F Y, DONG Z Y, DIAO G Q, et al.. A novel green phosphor Ca8MgLu(PO4)7:Tb3+ for near ultraviolet white light-emitting diodes [J]. Chin. J. Lumin., 2015, 36(10):1132-1136. (in Chinese)
倪海勇,梁宏斌,王灵利,等. Na3GdSi2O7:Tb3+荧光粉发光特性及Gd3+Tb3+之间的能量传递 [J]. 发光学报, 2013, 34(8):970-975. NI H Y, LIANG H B, WANG L L, et al.. Luminescent properties of phosphor Na3GdSi2O7:Tb3+ and Gd3+Tb3+ energy transfer [J]. Chin. J. Lumin., 2013, 34(8):970-975. (in Chinese)
FERNNDEZ-CARRIN A J, CAA M, GARCI'A-SEVILLANO J, et al.. New single-phase, white-light-emitting phosphors based on -Gd2Si2O7 for solid-state lighting [J]. J. Phys. Chem. C, 2014, 118(31):18035-18043.
ZENG W, WANG Y H, HAN S C, et al.. Enhancement of CdSiO3:Tb3+ green long-lasting phosphors by co-doping with Re3+ (Re3+=Gd3+, Y3+, La3+) ions [J]. J. Lumin., 2014, 152:210-213.
SUN X Y, HUANG S M, GU M, et al.. Enhanced Tb3+ luminescence by non-radiative energy transfer from Gd3+ in silicate glass [J]. Phys. B, 2010, 405(2):569-572.
杨志平,杨富,侯春彩,等. 新型绿色荧光粉BaLa2ZnO5:Tb3+的合成与发光性质 [J]. 发光学报, 2014, 35(10):1153-1157. YANG Z P, YANG F, HOU C C, et al.. Synthesis and luminescence properties of novel green emitting phosphor BaLa2ZnO5:Tb3+[J]. Chin. J. Lumin., 2014, 35(10):1153-1157. (in Chinese)
许少鸿. 固体发光 [M]. 北京:清华大学出版社, 2011. XU S H. Luminescence of Solids [M]. Beijing: Tsinghua University Press, 2011. (in Chinese)
RAJU G S, PARK J Y, JUNG H C, et al.. Gd3+ sensitization effect on the luminescence properties of Tb3+ activated calcium gadolinium oxyapatite nanophosphors [J]. J. Electrochem. Soc., 2011, 158(2):J20-J26.
VAN DER ENDE B M, AARTS L, MEIJERINK A. Near-infrared quantum cutting for photovoltaics [J]. Adv. Mater., 2009, 21(30):3073-3077.
0
浏览量
93
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构