Spectral analysis of Eu3+ and Tb3+:B2O3–ZnO–PbO glasses
Spectral analysis of Eu3+ and Tb3+:B2O3–ZnO–PbO glasses
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DOI：
10.1016/j.matchemphys.2006.11.020
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发表时间：
2007-04
影响因子：
4.6
通讯作者：
G. Lakshminarayana;S. Buddhudu
中科院分区：
文献类型：
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作者：
G. Lakshminarayana;S. Buddhudu
制备了红橙子和绿色发光的Eu ~（3+）和Tb ~（3+）：B_2O_3-ZnO-PbO玻璃，通过XRD、DSC、吸收、激发和发射光谱的测量，研究了它们的光谱性质。根据玻璃的紫外吸收光谱计算了直接和间接光学带隙。Eu ~（3+）：玻璃的PL谱在579 nm、591 nm、614 nm、653 nm和703 nm处有5个发射跃迁（5D 0 → 7 F0 -4），激发波长为392 nm（7 F0 → 5L 6）。Tb 3+：玻璃在489 nm、543 nm、587 nm和623 nm处有4个发射带（5D4→ 7 F6、5，4，3），激发波长为377 nm（7 F6 → 5G 6）。当暴露于UV源（254 nm）时，Eu 3+或Tb 3+：BZP玻璃显示出明亮的红橙子或强绿色颜色。
Reddish orange and green luminescent Eu3+and Tb3+:B2O3–ZnO–PbO glasses have been developed to investigate their spectral properties from the measurement of their XRD, DSC, absorption, excitation and emission profiles. Direct and indirect optical band gaps have been calculated based on the glasses UV absorption spectra. The PL spectrum of Eu3+:glass has shown five emission transitions (5D0→7F0–4) at 579nm, 591nm, 614nm, 653nm and 703nm with excitation wavelength at 392nm (7F0→5L6). Similarly Tb3+:glass has revealed four emission bands (5D4→7F6, 5, 4 and 3) at 489nm, 543nm, 587nm and 623nm with 377nm (7F6→5G6) as the excitation wavelength. Upon exposure to an UV source (254nm), Eu3+or Tb3+:BZP glasses have shown bright reddish orange or strong green colours.