نتایج جستجو برای: hexagonal nanostructures

تعداد نتایج: 32446  

Journal: :Materials Chemistry and Physics 2022

Pure monoclinic single crystalline Ag2Te nanorods were synthesized by a two-step method. The first step concerns the electrodeposition of self-standing Te in an ionic liquid medium, taking advantage its templating properties. These obtained are with growth direction along [001] axis hexagonal lattice. average diameter as-deposited is 60 ± 13 nm less than 300 long. Afterwards, resulting nanostru...

Journal: :Science of Sintering 2022

The most significant parameters affecting particle size and morphology in nanoscale powder production are the working temperature time. reduction leads to addition of new electrical, mechanical, chemical optical properties materials. nano ZnO special importance due its multi-dimensional applications fields industry, cosmetics, electronics, etc. Zinc oxide (ZnO) with various morphologies was syn...

Journal: :Journal of Materials Science: Materials in Electronics 2021

Herewith we report a facile synthesis of zinc oxide doped with (5, 10, 15 and 20 wt%) titanium nanocomposites in gelatin under ultra-sonication. The X-ray diffraction (XRD) data revealed the ZnO formation addition to rutile TiO2 phase. phase size decreased, while increased loading increment. scanning electron microscopy (SEM) displayed combination spherical hexagonal particles 60–80 nm distribu...

Journal: :InfoMat 2022

Plasmonic metal electrodes with subwavelength nanostructures are promising for enhancing light harvesting in photovoltaics. However, the nonradiative damping of surface plasmon polaritons (SPPs) during coupling sunlight results conversion excited hot-electrons to heat, which limits absorption and generation photocurrent. Herein, an energy recycling strategy driven by hot-electron emission SPP t...

Journal: :Composites Part A-applied Science and Manufacturing 2021

To improve plant fibres/polymer matrix adhesion, the surface of flax yarns was modified by zinc oxide (ZnO) nanorods, which were synthesized through a hydrothermal treatment. Several parameters analysed in order to obtain uniform and homogeneous ZnO interphase, such as number seeding cycles, growth times replacement solution. The results showed that it is possible highly oriented nanostructures...

Journal: :journal of nanostructures 2014
o. rahmani m. h. noroozi moghaddam

piezoelectric nanobeams having circular, rectangular and hexagonal cross-sections are synthesized and used in various nano structures; however, piezoelectric nanobeams with hexagonal cross-sections have not been studied in detail. in particular, the physical mechanisms of the surface effect and the role of surface stress, surface elasticity and surface piezoelectricity have not been discussed t...

Journal: :IJPRAI 2005
K. S. Dersanambika Kamala Krithivasan Carlos Martín-Vide K. G. Subramanian

In this paper we introduce hexagonal Wang tiles, local hexagonal picture languages, and recognizable hexagonal picture languages. We use hexagonal Wang tiles to introduce hexagonal Wang systems(HWS), a formalism to recognize hexagonal picture languages. It is noticed that the family of hexagonal picture languages defined by hexagonal Wang systems coincides with the family of hexagonal picture l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم پایه کاربردی 1388

موضوع ترابرد الکتریکی، ترموالکتریکی و ترمومغناطیسی یکی از موضوعات مهم در علم نانوترموالکترونیک می باشد. با دانستن هر چه بیشتر خواص ترمومغناطیسی مواد، می توان تحولات اساسی در صنعت الکترونیک ایجاد کرد و باعث طراحی دقیقتر و بهتر ادوات الکتریکی اپتوالکترونیکی وابسته به اسپین در مقیاس نانو شد. اندازه گیری کمیت های ترموالکتریکی مانند توان ترموالکتریک، در ساختارهایی با ابعاد پایین، به دلیل کاربرد فراو...

Journal: :international journal of nano dimension 0
m. s. sadjadi department of chemistry, science and research branch, islamic azad university, tehran, iran. m. meskinfam department of chemistry, faculty of science, lahijan branch, islamic azad university , lahijan, iran. h. jazdarreh department of chemistry, faculty of science, lahijan branch, islamic azad university , lahijan, iran.

bone like hydroxyapatite (nhap) was synthesized via an in situ biomimetic process in presence of wheat starch. the effect of polymer concentration alteration on the final structure of nhap was investigated. formation of the nhap at room temperature was confirmed by x-ray diffraction (xrd) and fourier transform infrared spectroscopy (ft-ir). size and morphology of the nhap samples were character...

Fatima Allawi, M. A. Mahdi, M.J Kadhim, Sami Najah Abaas,

     Zinc Oxide (ZnO) nanorods and titanium dioxide (TiO2) nanostructures thin films were prepared onto glass substrates by the chemical bath deposition (CBD) method. The ZnO was structured as nanorods (NRs) while TiO2 was formed as nanoflowers plate as confirmed by Field-Emission Scanning Electron Microscope (FESEM) images. The ZnO/Fe3O4 and TiO2/Fe3O4 nanostructures thin films were prepared v...

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