| | 3. | Photoluminescence quenching of CdTe/CdS core-shell quantum dots in aqueous solution by ZnO nanocrystals Original Research Article
Journal of Luminescence, In Press, Accepted Manuscript, Available online 10 February 2011
Aimin Shi, Jianhui Sun, Qinghui Zeng, Cong Shao, Zaicheng Sun, Haibo Li, Xianggui Kong, Jialong Zhao
Research highlights► PL quenching of CdTe/CdS core-shell QDs was observed in the presence of ZnO nanocrystals. ► The PL quenching resulted in a decrease in PL lifetime and a small red shift of the PL band of CdTe/CdS core-shell QDs. ► CdTe(1.5)/CdS core-shell QDs exhibited higher efficiency of PL quenching than the CdTe(3.0)/CdS core-shell QDs. ► Electron transfer processes from CdTe/CdS core-shell QDs to ZnO nanocrystals were explained well by type II and type I QD models.
| | | | 4. | Self-assembled highly symmetrical ZnS nanostructures and their cathodoluminescence Original Research Article
Journal of Luminescence, In Press, Accepted Manuscript, Available online 10 February 2011
Baoyu Liu, Long Hu, Chengchun Tang, Lu Liu, Shaohua Li, Jigong Qi, Yuhan Liu
Research highlightsNanostructures with peculiar morphology, shape and highly structural symmetry may exhibit unexpected properties and thus attract extensive research interest. However, the synthesis of such complex nanostructure is rather challenging and far from rational controlling. The objective of this work is to synthesize some ZnS nanostructures with highly structural symmetry through a self-assembled thermal evaporation process. It was found that all the ZnS nanostructures were single crystal and oriented along [002] direction. In addition, the strong and uniform band-gap emission centered at 337 nm from the ZnS nanostructures were observed, which was rarely reported for nanostructured ZnS due to their poor crystal quality. Therefore, it is believed that the ZnS nanostructures with highly structural symmetry and excellent optical performance may replace other ZnS nanostructures for specific nano-optoelectronic application.
| | | | 5. | A computational prediction of total carbo-merization on single-walled carbon nanotubes Original Research Article
Journal of Physics and Chemistry of Solids, In Press, Accepted Manuscript, Available online 10 February 2011
Wei Liu, Yuxue Li, Yuanhe Huang
Research highlights► We model carbo-merization of single walled carbon nanotubes (C-SWCNTs).► We examine the stability, the mechanical and the electronic properties of these nanotubes.► The calculated Young’s moduli of C-SWCNTs are smaller than those of SWCNTs.► The zigzag C-SWCNTs have higher mobility than the corresponding SWCNTs and show periodicity on tube diameters.
| | | | 14. | A facile route to growth of γ-MnOOH nanorods and electrochemical capacitance properties Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 9 February 2011
Zhongchun Li, Hongling Bao, Xiaoyu Miao, Xuhong Chen
Graphical abstractSingle crystal nanorods of -MnOOH were successfully prepared via a novel solvothermal process based on the redox reaction between KMnO4 and DMF without extra surfactant or template. Research highlights► A novel and facile solvothermal route was developed to synthesis of γ-MnOOH nanorods. ► Single crystal γ-MnOOH nanorods were prepared without surfactant or template. ► The synthetic route requires only two reagents and can exquisite control over the morphologies of γ-MnOOH. ► γ-MnOOH nanorods have a good electrochemical capability.
| | | | 15. | Highly monodisperse cubic and octahedral rhodium nanocrystals: Their evolutions from sharp polyhedrons into branched nanostructures and surface–enhanced Raman scattering Original Research Article
Journal of Crystal Growth, In Press, Accepted Manuscript, Available online 9 February 2011
Nguyen Viet Long, Nguyen Duc Chien, Hirohito Hirata, Takashi Matsubara, Michitaka Ohtaki, Masayuki Nogami
Research highlightsIn this study, cubic and octahedral Rh nanoparticles under size and polyhedral morphology control are synthesized by polyol method of adding AgNO3. The role of AgNO3 is important for the nucleation, overgrowth, and formation of the tetrahedral, cubic, and octahedral morphologies of Rh nanoparticles. The cubic and octahedral Rh morphologies were changed into porous or star–like Rh nanoparticles. The morphologies of Rh nanoparticles depended on reaction time and temperatures with the concentration of AgNO3. The surface attachment, self–aggregation and assembly of flower–like Rh nanoparticles in the formation of large, porous, and irregular Rh particles are explored. Interestingly, cubic and octahedral monolayers of Rh nanoparticles on SERS substrates using a probe as malachite green (MG) molecule exhibit the high sensitivity for their potential applications in chemical and biochemical sensing.
| | | | 18. | Graphite nanosheets doped with Fe, Ni and N synthesized in one step and their unique magnetic performance
Solid State Communications, In Press, Accepted Manuscript, Available online 9 February 2011
Zhanwei Xu, Hejun Li, Huijuan Luo, Huihui Sun, Qinglin Zhang, Gaoxiang Cao, Kezhi Li
| | | | 19. | Coherent growth and superhardness effect in VC/Si3N4 nanomultilayers Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 9 February 2011
Guanqun Li, Yuge Li, Geyang Li
Research Highlights►Si3N4 does not react with C2H2 in the sputtering condition. ►Transitional metal carbide (VC) could force as-deposited amorphous materials (Si3N4) crystallized as nitride due to “template effect” in multilayer growth. ►The carbide-based multilayer can also exhibit coherent growth and get superhardness effect.
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