Optical prperties of Mn-doped ZnO nanowires

被引：16

作者：

Phan, The-Long ^{[3
]}

Sun, Yue-Kui ^{[3
]}

Vincent, Roger ^{[3
]}

Cherns, David ^{[3
]}

Nghia, Nguyen Xuan ^{[4
]}

Yu, Seong-Cho ^{[1
,2
]}

机构：

[1] Chungbuk Natl Univ, BK Phys Program 21, Cheongju 361763, South Korea

[2] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea

[3] Univ Bristol, HH Wills Phys Lab, Micro & Nanostruct Grp, Bristol BS8 1TL, Avon, England

[4] Acad Sci & Technol, Inst Mat Sci, Hanoi, Vietnam

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2008年 / 52卷 / 05期

关键词：

Mn-ZnO spintronics; optical properties;

D O I：

10.3938/jkps.52.1633

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We used chemical vapor deposition to prepare ZnO nanowires. After that, the synthesized nanowires were doped with Mn by using thermal diffusion. The optical properties of the samples were investigated by means of using photoluminescence (PL) and Raman scattering (RS) spectroscopy. The presence of Mn in the ZnO nanowires changed in the RS intensity at wavenumbers between 500 and 600 cm(-1) and resulted in generation of longitudinal optical (LO) phonons at higher orders. The recorded PL spectra revealed the dependences of the PL intensity and the emission peak position on the Mn doping. Our results also indicated that the incorporation of a small amount of Mn into ZnO nanowires did not modify the wurtzite structure, but improved significantly the luminescence efficiency of the ZnO nanowires.

引用

页码：1633 / 1636

页数：4

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