Photoluminescence and ultra-fast decay profiles of rare-earth (III) ion-doped semiconductor nanocrystals encapsulated in silica nanotube AMCM-41/CdxZn1−xS: Eu3+, Tb3+

Photoluminescence and ultra-fast decay profiles of rare-earth (III) ion-doped semiconductor nanocrystals encapsulated in silica nanotube AMCM-41/CdxZn1−xS: Eu3+, Tb3+
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封装在二氧化硅纳米管 AMCM-41/CdxZn1−xS: Eu3+、Tb3+ 中的稀土 (III) 离子掺杂半导体纳米晶体的光致发光和超快衰减曲线

DOI:
10.1016/j.jlumin.2004.01.082
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发表时间:
2004
影响因子:
3.6
通讯作者:
H. Kuroda
H. Kuroda
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
M. Morita;T. Ishii;M. Baba;D. Rau;M. Iwamura;H. Kuroda

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为了研究掺杂Zn × Cd 1−x S: Eu 3+, Tb 3+纳米晶体的氧化铝(Al 2o3)修饰MCM-41纳米管在温度低至10 K时的量子约束效应,测量了发光、时间分辨发光和衰减谱。与块体材料相比,在存在振动发光带的情况下,发现其发光光谱特征与sio2中心、新的f-f跃迁机制以及由于表面结合中心而产生的非常短(600 ps)的寿命特征有关。
Luminescence, time-resolved luminescence and decay profiles are measured in order to investigate quantum-confinement effects in alumina (Al 2 O 3)-modified MCM-41 silica nanotubes doped with Zn x Cd 1− x S: Eu 3+, Tb 3+ nanocrystals at temperatures down to 10 K. In comparison with bulk materials, in the presence of vibronic luminescence bands, luminescence spectral characteristics are found associated with SiO 2 centers, a new f–f transition mechanism and very short (600 ps) lifetime features due to surface-bound centers.
纳米多孔溶胶-凝胶SiO_2玻璃中闭壳分子复合物中心的发光
DOI: --
发表时间: 2003
期刊: J.Lumin. 102-103
影响因子: --
作者:
M.Morita;S.Kajiyama;D.Rau;T.Sakurai;M.Iwamura
通讯作者: M.Iwamura