Eu~(3+), Bi~(3+) codoped Lu_2O_3 nanopowders: Synthesis and luminescent properties

Angel Morales Ramirez; Margarita Garcia Hernandez; Jonathan Yepez Avila; Antonieta Garcia Murillo; Felipe Carrillo Romo; Elder de la Rosa; Vicente Garibay Febles; Joan Reyes Miranda

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Eu~(3+), Bi~(3+) codoped Lu_2O_3 nanopowders: Synthesis and luminescent properties

机译：Eu〜（3+），Bi〜（3+）共掺杂Lu_2O_3纳米粉体的合成与发光性能

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Eu~(3+), Bi~(3+) codoped Lu_2O_3 powders (Eu = 2.5 at.%, Bi = 0-3.0 at.%) were prepared using the sol-gel method. Fourier transform infrared spectroscopy, x-ray diffraction, and excitation and emission spectra were carried out to characterize the synthesis, structure, and luminescent properties. The excitation spectra show a strong peak at 350-390 nm, corresponding to the Bi~(3+) ~1S_0 → ~3P_1 transition, and the emission spectra present the emission from ~5D_0 → ~7F_J (J = 0, 1, 2, 3, 4) level of Eu~(3+). The intensity of the reddish emission at 612 nm was monitored as a function of the Bi~(3+) content and showed a light yield increment of ≈400% compared to a monodoped sample at 1.0% at. Bi~(3+), produced by an energy transfer process from Bi~(3+) to Eu~(3+). This was a consequence of the overlapping of the Bi~(3+) ~3P_1 → ~1S_0 emission with the f-f Eu~(3+) transitions.

机译：使用溶胶-凝胶法制备了Eu〜（3 +），Bi〜（3+）共掺杂的Lu_2O_3粉末（Eu = 2.5 at。％，Bi = 0-3.0 at。％）。进行了傅里叶变换红外光谱，X射线衍射以及激发和发射光谱，以表征合成，结构和发光性质。激发光谱在350-390 nm处显示一个强峰，对应于Bi〜（3+）〜1S_0→〜3P_1跃迁，并且发射光谱呈现了〜5D_0→〜7F_J的发射（J = 0、1、2 ，3，4）的Eu〜（3+）水平。根据Bi〜（3+）含量对612 nm处的微红色发射强度进行监控，与1.0％at的单掺杂样品相比，显示出约400％的光产率增量。 Bi〜（3+），由Bi〜（3+）到Eu〜（3+）的能量转移过程产生。这是Bi〜（3+）〜3P_1→〜1S_0发射与f-f Eu〜（3+）跃迁重叠的结果。

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《Journal of Materials Research》 |2013年第10期|1365-1371|共7页
作者
Angel Morales Ramirez; Margarita Garcia Hernandez; Jonathan Yepez Avila; Antonieta Garcia Murillo; Felipe Carrillo Romo; Elder de la Rosa; Vicente Garibay Febles; Joan Reyes Miranda;
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作者单位

Instituto Politecnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco Mexico D.F. C.P. 02250, Mexico;

Departamento de Ciencias Naturales, DCNI, Universidad Autbnoma Metropolitana, Unidad Cuajimalpa, Pedro Antonio de los Santos 84, 11850 Mexico D.F., Mexico;

Instituto Politecnico Nacional, ESIQIE, UPALM S/N Col. Lindavista, Gustavo A. Madero D.F. C.P. 07738, Mexico;

Instituto Politecnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco Mexico D.F. C.P. 02250, Mexico;

Instituto Politecnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco Mexico D.F. C.P. 02250, Mexico;

Centro de Investigaciones en Optica A.C, A.P. 1 -94837150, Leon, Gto., Mexico;

Instituto Mexicano del Petroleo, Programa de Ingenieria Molecular, Mexico, DF;

Instituto Politecnico Nacional, CIITEC IPN, Cerrada de Cecati S/N. Col. Santa Catarina, Azcapotzalco Mexico D.F. C.P. 02250, Mexico;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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Eu~(3+), Bi~(3+) codoped Lu_2O_3 nanopowders: Synthesis and luminescent properties

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