Thulasiramudu A, Buddhudu S
Department of Physics, Sri Venkateswara University, Tirupati 517 502, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Jul;67(3-4):802-7. doi: 10.1016/j.saa.2006.08.036. Epub 2006 Sep 5.
Here, we present the results of the analysis of Sm(3+) or Dy(3+) (0.5 mol%) ions doped heavy metal oxide (HMO)-based zinc lead borate (ZLB) glasses. Optical measurements such as absorption, emission spectra, lifetimes, XRD, DSC profiles have been carried out. The emission spectrum of Sm(3+):ZLB has shown the emission transitions of (4)G(5/2)-->(6)H(5/2) (563 nm), (4)G(5/2)-->(6)H(7/2) (598 nm), (4)G(5/2)-->(6)H(9/2) (646 nm), (4)G(5/2)-->(6)H(11/2) (708 nm) with lambda(exc): 401 nm ((6)H(5/2)-->(4)F(7/2)). In the case of the Dy(3+):ZLB glass, emission transitions of (4)F(9/2)-->(6)H(15/2) (485 nm), (4)F(9/2)-->(6)H(13/2) (575 nm) and (4)F(9/2)-->(6)H(11/2) (664 nm) with lambda(exi): 447 nm ((6)H(15/2)-->(4)I(15/2)) have been identified. Energy level schemes relating to the emission mechanisms involved in Sm(3+) and Dy(3+) glasses have been given.
在此,我们展示了对掺杂Sm(3+)或Dy(3+)(0.5摩尔%)离子的重金属氧化物(HMO)基硼酸锌铅(ZLB)玻璃的分析结果。已进行了诸如吸收、发射光谱、寿命、XRD、DSC曲线等光学测量。Sm(3+):ZLB的发射光谱显示了(4)G(5/2)-->(6)H(5/2)(563纳米)、(4)G(5/2)-->(6)H(7/2)(598纳米)、(4)G(5/2)-->(6)H(9/2)(646纳米)、(4)G(5/2)-->(6)H(11/2)(708纳米)的发射跃迁,激发波长λ(exc):401纳米((6)H(5/2)-->(4)F(7/2))。对于Dy(3+):ZLB玻璃,已识别出(4)F(9/2)-->(6)H(15/2)(485纳米)、(4)F(9/2)-->(6)H(13/2)(575纳米)和(4)F(9/2)-->(6)H(11/2)(664纳米)的发射跃迁,激发波长λ(exi):447纳米((6)H(15/2)-->(4)I(15/2))。给出了与Sm(3+)和Dy(3+)玻璃发射机制相关的能级图。