下面两篇文章略早些，也有大篇段落与另两篇雷同。其实所有工作都是一回事，只不过掺的杂不同。这种遍地开花式的工作真是令人叹为观止。
The fabrication and optical properties of highly crystalline ultra-long Cu-doped ZnO nanowires
2004 Nanotechnology 15 1152-1155
Shao-Min Zhou, Xiao-Hong Zhang, Xiang-Min Meng, Kai Zou, Xia Fan, Shi-Kang Wu and Shuit-Tong Lee
Authors to whom any correspondence should be addressed
E-mail: zhangxh@mail.ipc.ac.cn (Xiao-Hong Zhang) and appannale@cityu.edu.hk (Shuit-Tong Lee)
Abstract. We demonstrate the bulk synthesis of single crystalline Cu-doped ZnO nanowires using (CuI+ZnI2) powders at 600 °C. These mass nanowires are characterized through x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction, and high-resolution TEM; they have uniform diameters of about 65 nm and are several tens of microns in length. The growth of ZnCuO nanowires is suggested for self-catalyzed vapour–liquid–solid. In particular, the PL spectra of these nanowires show emission peaks that strongly shift to long wavelength with increasing Cu, and the doping quantity is found to be responsible for the different characteristics; the PL mechanism is explained in detail.
physica status solidi (a) Volume 202 Issue 3, Pages 405 - 410, 2005
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Synthesis and optical properties of Pb-doped ZnO nanowires
Shao-Min Zhou, Xiao-Hong Zhang, Xiang-Min Meng, Shi-Kang Wu, Shuit-Tong Lee
Correspondence to Xiao-Hong Zhang,
Abstract
We demonstrate bulk synthesis of single-crystal Pb-doped ZnO nanowires by using (Pb(NO3)2 + Zn) powders at 450 °C. These mass nanowires are characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction, and high-resolution TEM; they have uniform diameters of about 70 nm and are hundreds of microns in length. The growth of ZnPbO nanowires is suggested for self-catalyzed vapor-liquid-solid mechanism. In particular, the PL spectra of these nanowires show emission peaks that strongly shift to long wavelength with increasing Pb, and the doping quantity is found to be responsible for the different characteristics; the PL mechanism is explained in detail.