Limin Guo
Tsinghua University
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Publication
Featured researches published by Limin Guo.
Journal of Physics D | 2011
Limin Guo; Xiaohui Wang; Caifu Zhong; Longtu Li
Highly ordered ZrO2 nanotube (NT) arrays were fabricated by anodization in organic electrolyte containing NH4F. A facile sequential-chemical bath deposition technique was used to prepare CdS quantum dots (QDs) in the pores of ZrO2 NTs. XRD and HRTEM results confirmed the formation of single-phase wurtzite CdS nanoparticles with uniform size around 10 nm. UV–vis absorption and photoluminescence spectra proved that the CdS QD coating strongly enhanced the photon absorption of the NT arrays, as well as their PL signals in the visible broadband section which mostly arose from structure-dependent defects and oxygen vacancies in the nanohybrid layers.
Journal of Applied Physics | 2012
Limin Guo; Xiaohui Wang; Caifu Zhong; Longtu Li
Template-based electrophoretic deposition of Mn-Zn ferrite nanotubes (NTs) and nanowires (NWs) were achieved using anodic alumina oxide (AAO) membranes. The effect of electrophoretic current and deposition time on the morphology of the tubes was investigated. The samples show cubic spinel structure with no preferred orientation. Room-temperature magnetic properties of the Mn-Zn ferrite NT/NW arrays were studied. The magnetic easy axis parallels the NT/NW’s channel axis attributing to the large shape anisotropy in this direction, especially for the NTs with a small wall thickness. Magnetocrystalline anisotropy and magnetostatic interactions were found dominant in the samples when applied field was perpendicular to the channel axis.
Applied Surface Science | 2011
Limin Guo; Xiaohui Wang; Caifu Zhong; Longtu Li
Journal of the American Ceramic Society | 2013
Yu Huan; Xiaohui Wang; Limin Guo; Longtu Li
Ceramics International | 2013
Limin Guo; Xiaohui Wang; Hui Zhang; Longtu Li
Journal of Alloys and Compounds | 2012
Limin Guo; Xiaohui Wang; Caifu Zhong; Longtu Li
Journal of the American Ceramic Society | 2011
Limin Guo; Xiaohui Wang; Caifu Zhong; Longtu Li
Journal of Alloys and Compounds | 2012
Limin Guo; Caifu Zhong; Xiaohui Wang; Longtu Li
Journal of the American Ceramic Society | 2012
Caifu Zhong; Limin Guo; Xiaohui Wang; Longtu Li
Journal of Materials Science | 2011
Limin Guo; Xiaohui Wang; Shaopeng Zhang; Caifu Zhong; Longtu Li