| | 1. | Enhanced Emission of Er3+ from Alternately Er doped Si-rich Al2O3 Multilayer Film with Si Nanocrystals as Broadband Sensitizers Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 4 August 2011
Xiao Wang, Zuimin Jiang, Fei Xu, Zhongquan Ma, Run Xu, Bin Yu, Mingzhu Li, Lingling Zheng, Yongliang Fan, Jian Huang, Fang Lu
| | | | 2. | Structural and morphological dependence of carbon nanotube arrays on catalyst aggregation Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 4 August 2011
Jiang-tao Di, Zhen-zhong Yong, Xiao-jie Yang, Qing-wen Li
Highlights► The thickness of the catalyst film has a direct effect on the areal density of the catalytic particles and then the alignment of the CNT array. ► Both the size and areal density of the catalyst also change with the CNT growth in accordance with Ostwald ripening process, with the bottom of the CNT array varying from well-aligned to disordered and adhesion between catalyst particles and the substrate getting enhanced. ► Introducing alumina as buffer layer and annealing the catalyst film at low pressure are two effective approaches to downsize the catalyst particles and then the diameter, wall number of the CNTs.
| | | | 4. | Fabrication of the carbon nanotubes with small pits or embedded by nanoparticles via template-assisted method Original Research Article
Journal of Crystal Growth, In Press, Accepted Manuscript, Available online 4 August 2011
Xiaoyang Hu, Huihua Zhou, Yingjiu Zhang, Pingxin Song, Yongtao Tian, Xinjian Li, Jing Zhu
Research highlights► The carbon nanotubes with pits or Pt particles embedded are fabricated. ► The novel structures are fabricated using an anodic aluminum oxide (AAO) template. ► The detail synthesis includes decorating AAO channels and chemical vapor deposition. ► The formation mechanism of these novel structures is suggested.
| | | | 6. | 3-D Numerical modeling and simulation of Nanoscale FinFET for the application in ULSI circuits. Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 4 August 2011
R. Ramesh, M. Madheswaran, K. Kannan
Graphical AbstractSchematic diagram of FinFET. Highlights► A direct 3-D numerical solution is carried out. ► The adopted method validates more accurately with the experimental values. ► Quantum Mechanical Effects are included in the 3-D simulation directly without reducing to 1-D Schrödinger equation.► New Boundary conditions are used for solving the 3-D Schrödinger equation.► Simulation time is very much reduced.
| | | | 8. | First principles calculation of field emission from carbon nanotubes with nitrogen and boron doping Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 4 August 2011
Sherif A. Tawfik, S.M. El-Sheikh, N.M. Salem
Graphical AbstractWe evaluate of the impact of adding nitrogen and boron to nanotubes on field emission properties. Nitrogen enhances field emission, while boron either impedes or does not affect field emission. Highlights► TDDFT for the simulation of the field emission process from nanostructures. ► Results are close to published work using similar and other methods. ► Visualization of the evolution of the charge cloud. ► Boron doping either impedes, or slightly enhances, field emission. ► Nitrogen strongly increases emission current.
| | | | 9. | Ultimate capabilities of sharp metal tips for plasmon nanofocusing, near-field trapping and sensing
Physics Letters A, In Press, Accepted Manuscript, Available online 4 August 2011
Dmitri K. Gramotnev, Michael W. Vogel
Highlights► We analyze a nanofocusing structure with the largest achievable field enhancement. ► We show high efficiency of the structure for near-field trapping and manipulation. ► We discuss applications for nano-optical sensors and monitoring techniques. ► We demonstrate the capabilities for single-molecule detection and imaging. ► We present detailed physical interpretation of the obtained results.
| | | | 10. | Theoretical study on transport properties of a BN co-doped SiC nanotube
Physics Letters A, In Press, Accepted Manuscript, Available online 4 August 2011
Sudhanshu Choudhary, S. Qureshi
Highlights► BN co-doping suppresses Negative Differential Resistance property of SiCNT. ► HOMO has no contribution from BN impurity. ► LUMO is contributed from Nitrogen atoms at low and high bias voltages. ► BN co-doping results in exponential increase in current with bias. ► Rectification is negligible.
| | | | 17. | Blue–Green luminescent CdZnSeS nanocrystals synthesized with activated alkyl Thiol Original Research Article
Journal of Luminescence, In Press, Accepted Manuscript, Available online 3 August 2011
Xing Xia, Zuli Liu, Guihuan Du, Yuebin Li, Ming Ma, Kailun Yao
Highlights► We achieved to obtain blue to green luminescent nanocrystals by a one-step process. ► Alkyl thiol was used as a sulfur source and a surface stabilizer to control particle size. ► The luminescence color of NCs could be easily tuned by changing their composition and particle size simultaneously.
| | | | 18. | First principles calculations of armchair graphene nanoribbons interacting with Cu atoms Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 3 August 2011
Neeraj K. Jaiswal, Pankaj Srivastava
Highlights► Bare armchair graphene nanoribbons (AGNR) are narrow band gap semiconductors.► H-termination enhances the stability as well as band gap in narrow AGNR.► Cu-doped AGNR are metallic irrespective of their widths.► Cu-terminated AGNR exhibit oscillatory band gap that depends on their widths.
| | | | 20. | Self-organized gold nanostructures on laser patterned PET Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 3 August 2011
J. Siegel, J. Heitz, V. Švorčík
Highlights► Irradiation of PET with linearly polarized light from a pulsed KrF laser ► The structure period was controlled by variation of the incidence angle ► Gold layers were deposited onto nano-patterned PET by sputtering and evaporation ► Evaporation leads to a continuous metal coverage copying the nanostructured polymer ► Sputtering leads to formation of isolated nano-wires
| | | | 21. | Evaluation of residual iron in carbon nanotubes purified by acid treatments Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 2 August 2011
E.R. Edwards, E.F. Antunes, E.C. Botelho, M.R. Baldan, E.J. Corat
Highlights► We produced multi-walled carbon nanotubes powder by pyrolysis of camphor mixed with ferrocene, and then used non-oxidative and oxidative acidic treatments for iron removal. ► We analyzed the elimination and/or oxidation of iron nanoparticles by X-ray photoelectron spectroscopy, monitoring Fe2p, O1 s and C1 s peaks. ► We carried out complementary investigation by thermogravimetric analysis, atomic absorption spectroscopy, Raman Spectroscopy and transmission electron microscopy (TEM) to evaluate the effectiveness of each treatment. ► A purity degree higher than 98% was achieved only with non-oxidative treatments using sonification process
| | | | 22. | Synthesis and Field Emission Properties of GaN Nanowires Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 2 August 2011
Enling Li, Zhen Cui, Yuanbin Dai, Danna Zhao, Tao Zhao
Highlights► Ni as catalyst, high-quality GaN nanowires films were synthesized by chemical vapor deposition (CVD) ► The open electric field of the sample1 was 9.1 V/μm ► The field emission properties of GaN nanowires films are related to the roughness and density of the nanowires in the film.
| | | | 25. | Anomalous magnetic antiresonance and resonance in ferrite nanoparticles embedded in opal matrix Original Research Article
Journal of Magnetism and Magnetic Materials, In Press, Uncorrected Proof, Available online 2 August 2011
V.V. Ustinov, A.B. Rinkevich, D.V. Perov, M.I. Samoilovich, S.M. Klescheva
Highlights► The electromagnetic properties of opal matrix with the ferrite particles have been studied. ► Variations in the transmission and reflection are caused by magnetic resonance and antiresonance. ► Magnetic antiresonance has been defined here as a minimum of the absorbed power. ► The spectra of the resonances of reflection coefficient are restored.
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