| | 2. | Low-voltage Driving Phototransistor Based on Dye-sensitized Nanocrystalline Titanium Dioxide Thin Films Original Research Article
Current Applied Physics, In Press, Accepted Manuscript, Available online 7 June 2011
Xiaoqi Wang, Jia Xu, Zhiyong Liu, Yuming Lu, Chuanbing Cai
Highlights► We report a new etching method to etch the transparent conducting glass (FTO), which is low-cost and easy-processing. ► The DC and AC light response are studied for the new kind phototransistor based on dye-sensitized solar cell, implying the potential for application. ► An equivalent electrical circuit model is proposed for the present phototransistor, suggesting a clear correlation between photovoltaic and photoconductive behaviors as well as their light responses.
| | | | 3. | Template-free synthesis of MnO2 nanowires with secondary flower like Structure: characterization and supercapacitor behavior studies Original Research Article
Current Applied Physics, In Press, Accepted Manuscript, Available online 7 June 2011
Taher Yousefi, Ahmad Nozad Golikand, Mohammad Hossein Mashhadizadeh, Mustafa Aghazadeh
Highlights► New nanostructure of manganese oxide synthesized by template- free electrocathodic deposition. ► In this work fabrication of a required template and the separation of the nanowires from the base template which are time-consuming and expensive processes removed. ► The conditions and materials used in this work for synthesis of MnO2 have not been reported. ► The used method was very simple, low cost and time-saving comparing to other techniques. as compared with other manganese oxide our nano wires showed a significantly high electrochemical performance(high capacitance and good cycle live) because of their uniformity and size.
| | | | 4. | Charged Polystyrene Nanoparticles: Role of Ionic Comonomers Structures Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 7 June 2011
Dhamodaran Arunbabu, Tushar Jana
Graphical abstractThe structural effects of ionic comonomers on the size, morphology, charge density, and the self assembly of the monodispersed charged polystyrene particles have been investigated. Highlights► Synthesis of monodispersed charged polystyrene nanoparticles. ► Structural effects of ionic comonomers on particle properties. ► Self assembled light diffracting polymer nanoparticles.
| | | | 5. | Protein-directed self-assembly of CaCO3 nanoparticles into hierarchical superstructures Original Research Article
Journal of Crystal Growth, In Press, Accepted Manuscript, Available online 7 June 2011
Xiaoming Ma, Huayan Yang, Huifeng Chen, Lin Yang, Yuming Guo, Yuanyuan Si
Highlights► Two hybrid CaCO3-protein materials with highly ordered superstructures are obtained by gas-diffused method. ► Self-assembly of a large number of nanoparticles have been observed. ► The proteins binding onto the nanoparticles surface provide the nanoparticles with a moderate mobility, which allows reconstructing the morphologies and structures of nanoparticles.► The protein-directed inorganic crystals could be promising in life sciences for drug delivery, implantable microdevices, as well as for molecular electronics.
| | | | 6. | Nanocrystalline Hf and Ta containing FeCo based alloys for high frequency applications Original Research Article
Materials Science and Engineering: B, In Press, Uncorrected Proof, Available online 7 June 2011
M.S. Lucas, W.C. Bourne, A.O. Sheets, L. Brunke, M.D. Alexander, J.M. Shank, E. Michel, S.L. Semiatin, J. Horwath, Z. Turgut
Highlights► Nanocrystalline alloys with nominal compositions (Fe81Co19)84M9B7, where M = Hf, HfTa, and Ta, were produced by heat treating amorphous ribbons. ► Ta additions reduce eddy current loss by increasing the resistivity, enabling higher frequency operation. ► A reduction in grain size is observed by X-ray diffraction for the Ta containing alloys, leading to better soft magnetic properties.
| | | | 9. | Synthesis and morphology of electrospun PVA/PLZT composite and single phase PLZT nanofibers Original Research Article
Materials Science and Engineering: B, In Press, Uncorrected Proof, Available online 7 June 2011
Sarabjit Singh, Subir Roy, Vajinder Singh, M. Vijayakumar
Highlights► The composite (PVA/PLZT) nanofibrous mats are prepared by electrospinning process. ► Morphological changes of nanofibers after calcination are represented by a schematic. ► PLZT nanofibers were obtained by calcining PVA/PLZT nanofibrous mat at 650 °C/2 h.
| | | | 10. | A Comparison Between Optical Properties of TiO2 Nanowires Obtained by EMA Method and Experiment Original Research Article
Physica B: Condensed Matter, In Press, Accepted Manuscript, Available online 7 June 2011
S. Ramezani Sani, A. Morteza Ali, R. Jafari
Highlights► preparation TiO2 nanowires. ► calculation optical properties by EMA method. (theoreticall). ► comparison experimental reflectance spectrum with obtained reflectance spectrum from EMA. ► Our results showed the excellent agreement between experimental optical data and EMA modeling.
| | | | 12. | A comparison between fine-grained and nanocrystalline electrodeposited Cu-Ni films. Insights on mechanical and corrosion performance Original Research Article
Surface and Coatings Technology, In Press, Accepted Manuscript, Available online 7 June 2011
E. Pellicer, A. Varea, S. Pané, K.M. Sivaraman, B.J. Nelson, S. Suriñach, M.D. Baró, J. Sort
Highlights► Fine-grained and nanocrystalline electrodeposited Cu-Ni alloy films ► The nanocrystalline films perform mechanically better than the fine-grained ones ► The nanocrystalline films exhibit larger amount of stacking faults ► Nanostructuring does not worsen the corrosion resistance in chloride medium
| | | | 14. | Growth of silicon carbide surface nanocrystals on silicon under high-temperature vacuum annealing Original Research Article
Vacuum, In Press, Accepted Manuscript, Available online 7 June 2011
T. Hopf, J. Leveneur, A. Markwitz
Highlights► Grew SiC nanocrystals on a silicon surface by high-temperature vacuum annealing. ► Investigated the effect of carbon contamination on the growth of these nanocrystals. ► Excess carbon supplied to the silicon surface resulted in much faster growth of surface nanocrystals. ► However, excess carbon supplied to silicon surface had no effect on the density of nanocrystals which nucleated on the surface.
| | | | 16. | Diverse Nanowires Activated Self-scrolling of Graphene Nanoribbons Original Research Article
Applied Surface Science, In Press, Accepted Manuscript, Available online 6 June 2011
Dan Xia, Qingzhong Xue, Keyou Yan, Cheng Lv
Highlights► A simple method of synthesizing NW/CNS core/shell composite nanostructures. ► The successful process of GN self-scrolling depends on the NW radiuses. ► The formed CNSs exhibit a tubular structure similar to that of MWCNTs. ► The long GNs self-scrolling onto NWs have potential to prevent the NWs from corrosion.
| | | | 17. | Nanopillar Arrays of Amorphous Carbon Nitride Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 6 June 2011
Katla Sai Krishna, B.V.V.S. Pavan Kumar, Muthusamy Eswaramoorthy
Graphical abstract
Highlights► Novel synthesis of nanopillar arrays of amorphous carbon nitride using AAO membrane as the template. ► Functional amine groups on the surface were exploited for functionalization with oleic acid and for immobilization nanoparticles and ferritin protein. ► Immobilised nanoparticles were found to have good catalytic activity.
| | | | 18. | ZnO-SiO2 core-shell nanorod composite: Microstructure, emission and photoconductivity properties Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 6 June 2011
Shrabani Panigrahi, Durga Basak
Graphical abstractZnO-SiO2 core-shell nanorods composites have been fabricated by a simple chemical process. The UV emission intensity and photosensitivity become the maximum for five times SiO2 coated NRs and thereafter the values decrease. Highlights► ZnO-SiO2 core-shell nanorod composite has been synthesized by a simple chemical process. ► The UV emission intensity becomes the maximum for the five times coated NRs and thereafter its drops. ► The composite with the five times shell coating shows about one order increase in the UV sensitivity. ► ZnO-SiO2 core-shell composite nanorods might be promising for UV emitter and photodetectors.
| | | | 19. | Modeling of exchange bias in the antiferromagnetic (core)/ferromagnetic (shell) nanoparticles with specialized shapes Original Research Article
Journal of Magnetism and Magnetic Materials, In Press, Accepted Manuscript, Available online 6 June 2011
Yong Hu, Yan Liu, An Du
Highlights► A modified Monte Carlo method considers thermal fluctuations and energy barriers.► Egg and ellipsoid nanoparticles with inverted core-shell morphology are studied.► Pronounced exchange bias fields and reduced coercivities may be detected.► “Sparks” representing nucleation sites due to energy competition are observed.► “Sparks” can reflect or check directly and vividly the origin of exchange bias.
| | | | 20. | Solution-combusting preparation of mono-dispersed Mn3O4 nanoparticles for electrochemical applications Original Research Article
Journal of Physics and Chemistry of Solids, In Press, Accepted Manuscript, Available online 6 June 2011
Weiwei Gao, Shiyong Ye, Mingwang Shao
Graphical Abstract . Highlights► Mono-dispersed Mn3O4 NPs were prepared with a facile solution-combusting method. ► The as-prepared Mn3O4 NP modified GCE showed high sensitivity in the detection. ► The simultaneous determination of DA and AA was feasible.► This electrode will be found potential application in the biological detection.
| | | | 23. | Enhancement of Kerr nonlinearity at long wavelength in a quantum dot nanostructure Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 6 June 2011
Seyyed Hossein Asadpour, Mostafa Sahrai, Rasoul Sadighi-Bonabi, Amir Soltani, Hamed Mahrami
HighlightsQuantum coherence and interference phenomena such as electromagnetically induced transparency, lasing without inversion, subluminal and superluminal light propagation, optical bistability and multistability.
| | | | 25. | On the correlation between phonon spectra and surface segregation features in Ag-Cu-Ni ternary nanoalloys Original Research Article
Surface Science, In Press, Accepted Manuscript, Available online 6 June 2011
Ram Subbaraman, Subramanian K.R.S. Sankaranarayanan
Highlights► The work described in this manuscript represents a significant new advance in identifying and correlating features in vibrational spectra to atomic scale compositional ordering in Ag-Cu-Ni ternary alloy nanoclusters. ► We demonstrate that the phonon spectra obtained from molecular dynamics simulations of single metals as well as their bimetallic and ternary alloy nanocluster can be used to obtain new insights into the atomic scale distribution in the nanoclusters, their microstructure and dynamical properties. ► Detailed structural analyses are carried out to accurately quantify the compositional and microstructural variation in ternary alloy nanoclusters which are then correlated with the features observed in the calculated phonon spectra. The structures were obtained from energy minimization using Monte Carlo simulation. ► Atomic scale characterization of chemical ordering, compositional distribution and microstructure such as that discussed in the present work is of tremendous importance for applications such as catalysis which is primarily dominated by processes occurring at surface or subsurface layers.
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