نتایج جستجو برای: thin films

تعداد نتایج: 180922  

Journal: :mechanics of advanced composite structures‎ 2015
m.r. ayatollahi a.s. rahimi a. karimzadeh

the molecular dynamic technique was used to simulate the nano-indentation test on the thin films of silver, titanium, aluminum and copper which were coated on the silicone substrate. the mechanical properties of the selected thin films were studied in terms of the temperature. the temperature was changed from 193 k to 793 k with an increment of 100 k. to investigate the effect of temperature on...

In this research, WO3 and Au-WO3 thin films were prepared at different temperatures using the sol gel method. The effect of gold nanoparticles (GNPs) on the electrochromic properties of WO3 was also studied. 2.5 nm GNP was synthesized through sodium citrate reduction of gold chloride in an aqueous solution. These films were characterized by XRD, SEM, TEM, and spectrophotometer analyses. The fil...

2016
Wonjun Lee Woojin Kang Asif Khan Zafar Abas Heung Soo Kim Il-Kwon Oh

Piezoelectric thin films offer a number of advantages in various applications, such as high energy density harvesters, a wide dynamic range, and high sensitivity sensors, as well as large displacement and low power consumption actuators. This review covers the available material forms and applications of piezoelectric thin films: lead zirconate titanate (PZT)-based thin films, lead-free piezoel...

صالحی, سیدمحمدعلی, میرجلیلی, غضنفر, جلیل پیران, علی,

CdS thin films were deposited by thermal evaporation in a vacuum of ~ 10-5 torr at room temperature. Samples were subjected to annealing in the range of temperatures 100-300 oC for 1 hour in air.The crystal structure of CdS films was characterized by XRD technique. Only hexagonal phase with the preferred (002) plane was found in CdS films

Nanostructured TiO2 and S and Fe co-doped TiO2 thin films with high transparency were prepared on glass substrate through ultrasonic-assisted spray pyrolysis technique. The effects of doping on morphological, optical an...

Nanocrystalline PbS thin films are deposited on glass and alumina substratesthrough the chemical bath deposition technique by creating similar conditions, in orderto investigate the effects of the substrate. The structural and optical properties of PbSfilms are investigated by X-ray diffraction, scanning electron microscope, and UV–Vis.The structural analyses of the films indicate that they are...

2014
Simona Liliana Iconaru Patrick Chapon Philippe Le Coustumer Daniela Predoi

In this work, the preparation and characterization of silver doped hydroxyapatite thin films were reported and their antimicrobial activity was characterized. Silver doped hydroxyapatite (Ag:HAp) thin films coatings substrate was prepared on commercially pure Si disks by sol-gel method. The silver doped hydroxyapatite thin films were characterized by various techniques such as Scanning electron...

2015
S. Mahalingam H. Abdullah S. Shaari A. Muchtar I. Asshari

Indium oxide (In2O3) thin films annealed at various annealing temperatures were prepared by using spin-coating method for dye-sensitized solar cells (DSSCs). The objective of this research is to enhance the photovoltaic conversion efficiency in In2O3 thin films by finding the optimum annealing temperature and also to study the reason for high and low performance in the annealed In2O3 thin films...

Journal: :international journal of nano dimension 0
v. lakshmipriya nanoscience research lab, department of physics, vhnsn college, virudhunagar 626001, tamilnadu, india. b. natarajan rd government arts college, sivagangai 630561, tamilnadu, india. n. jeyakumaran nanoscience research lab, department of physics, vhnsn college, virudhunagar 626001, tamilnadu, india. n. prithivikumaran nanoscience research lab, department of physics, vhnsn college, virudhunagar 626001, tamilnadu, india.

zno thin films with preferred orientation along the (002) plane were prepared onto the glass substrates by the sol-gel spin coating method for different post- annealing temperatures. the xrd study confirms that the thin films grown by this method have good crystalline hexagonal wurtzite structure. the optical band gap of the samples was determined from uv-visible spectra. it is found that the s...

An experimental study over the optical response of thin MoS2 films grownby chemical bath deposition (CBD) method is presented. As two important factors, theeffect of bath temperature and growth time are considered on the photocurrentgeneration in the grown samples. The results show that increasing the growth time leadsto better optical response and higher difference betw...

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