Study of nanostructure growth with nanoscale apex induced by femtosecond laser irradiation at megahertz repetition rateNanoscale Research Letters - Tập 8 Số 1 - Trang 1-12 - 2013
Patel, Nikunj B, Tan, Bo, Venkatakrishnan, Krishnan
Leaf-like nanostructures with nanoscale apex are induced on dielectric target surfaces by high-repetition-rate femtosecond laser irradiation in ambient conditions. We have recently developed this unique technique to grow leaf-like nanostructures with such interesting geometry without the use of any catalyst. It was found to be possible only in the presence of background nitrogen gas flow. In this ...... hiện toàn bộ
Effects of the electrical excitation signal parameters on the geometry of an argon-based non-thermal atmospheric pressure plasma jetNanoscale Research Letters - Tập 9 - Trang 1-5 - 2014
Mohamed Tahar Benabbas, Salah Sahli, Abdallah Benhamouda, Saida Rebiai
A non-thermal atmospheric pressure argon plasma jet for medical applications has been generated using a high-voltage pulse generator and a homemade dielectric barrier discharge (DBD) reactor with a cylindrical configuration. A plasma jet of about 6 cm of length has been created in argon gas at atmospheric pressure with an applied peak to peak voltage and a frequency of 10 kV and 50 kHz, respective...... hiện toàn bộ
Au nanostructure arrays for plasmonic applications: annealed island films versus nanoimprint lithographyNanoscale Research Letters - - 2015
A. M. Lopatynskyi, Vasyl Lytvyn, Volodymyr I Nazarenko, L. Jay Guo, Brandon Lucas, V. I. Chegel
Abstract
This paper attempts to compare the main features of random and highly ordered gold nanostructure arrays (NSA) prepared by thermally annealed island film and nanoimprint lithography (NIL) techniques, respectively. Each substrate possesses different morphology in terms of plasmonic enhancement. Both methods allow such important features as spectral...... hiện toàn bộ
Morphological evolution of Ge/Si(001) quantum dot rings formed at the rim of wet-etched pitsNanoscale Research Letters - Tập 7 - Trang 1-6 - 2012
Martyna Grydlik, Moritz Brehm, Friedrich Schäffler
We demonstrate the formation of Ge quantum dots in ring-like arrangements around predefined {111}-faceted pits in the Si(001) substrate. We report on the complex morphological evolution of the single quantum dots contributing to the rings by means of atomic force microscopy and demonstrate that by careful adjustment of the epitaxial growth parameters, such rings containing densely squeezed islands...... hiện toàn bộ
Effect of phonons on the ac conductance of molecular junctionsNanoscale Research Letters - Tập 6 - Trang 1-3 - 2011
Akiko Ueda, Ora Entin-Wohlman, Amnon Aharony
We theoretically examine the effect of a single phonon mode on the structure of the frequency dependence of the ac conductance of molecular junctions, in the linear response regime. The conductance is enhanced (suppressed) by the electron-phonon interaction when the chemical potential is below (above) the energy of the electronic state on the molecule. PACS numbers: 71.38.-k, 73.21.La, 73.23.-b
Phytosynthesis of nanoparticles: concept, controversy and applicationNanoscale Research Letters - Tập 9 - Trang 1-24 - 2014
Azamal Husen, Khwaja Salahuddin Siddiqi
Nanotechnology is an exciting and powerful discipline of science; the altered properties of which have offered many new and profitable products and applications. Agriculture, food and medicine sector industries have been investing more in nanotechnology research. Plants or their extracts provide a biological synthesis route of several metallic nanoparticles which is more eco-friendly and allows a ...... hiện toàn bộ
Monitoring Charge Exchange in P3HT-Nanotube Composites Using Optical and Electrical CharacterisationNanoscale Research Letters - Tập 4 - Trang 635-639 - 2009
Ioannis Alexandrou, Emmanouil Lioudakis, Dimitrios Delaportas, C. Z. Zhao, Andreas Othonos
Charge exchange at the bulk heterojunctions of composites made by mixing single wall nanotubes (SWNTs) and polymers show potential for use in optoelectronic devices such as solar cells and optical sensors. The density/total area of these heterojunctions is expected to increase with increasing SWNT concentration but the efficiency of solar cell peaks at low SWNT concentrations. Most researchers use...... hiện toàn bộ