Photoluminescence from surfactant-assembled Y2O3:Eu nanotubes

被引：195

作者：

Wu, CF ^{[1
]}

Qin, WP ^{[1
]}

Qin, GS ^{[1
]}

Zhao, D ^{[1
]}

Zhang, JS ^{[1
]}

Huang, SH ^{[1
]}

Lü, SZ ^{[1
]}

Liu, HQ ^{[1
]}

Lin, HY ^{[1
]}

Tenne, R ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130022, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 04期

关键词：

D O I：

10.1063/1.1542685

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Y2O3:Eu nanotubes were fabricated by a surfactant assembly mechanism. The tubular structure was characterized by transmission electron microscopy. Under an ultraviolet-light excitation, the nanotubes show a relatively intense emission peak at 618 nm besides the 610 nm peak, different from that of single Y2O3:Eu nanocrystallites. The results of laser-selective excitation indicate that the emission centers near the surface of nanotube walls exhibit inhomogenously broadened spectra without spectral structures while the two sites (sites B and C) inside the nanotube walls present legible spectral structures. It is concluded by the number and peak positions of Stark levels that the sites B and C possess different site symmetries. (C) 2003 American Institute of Physics.

引用

页码：520 / 522

页数：3

共 15 条

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