نتایج جستجو برای: anodization technique

تعداد نتایج: 612174  

Journal: :Dalton Transactions 2023

In this work, CuOx (x = 1 and 2) nanostructures have been synthesized by electrochemical anodization in ethylene glycol based electrolytes using oxalic acid or NaF (with without NaOH)...

2017
Hasan A. Hadi

In this paper, formation of a nanostructure semi transparence fluoride tin oxides (FTO) by spray pyrolysis technique on porous silicon PS layer. Porous silicon PS layer was prepared by anodization of p-type silicon wafers to fabricate of the UVVisible Fluoride-doped tin oxide /Porous silicon /p-Si heterojunction photodetector. Optical properties of FTO thin films were measured. The optical band...

Journal: :journal of nanostructures 2015
f. mohammadpour m. moradi

in order to fabricate transparent tio2 nanotube dye-sensitized solar cells, anodically growth nanotube membranes are detached from ti substrate by a re-anodization method. the membranes are transferred on fto glass by two different methods. at the first one, 100mm ti-isopropoxide is used to make tio2 nanoparticles for adhering tio2 nanotube membranes to fto and in the second one a commercial ti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

2013
Qingfeng Lin Siu-Fung Leung Kwong-Hoi Tsui Bo Hua Zhiyong Fan

Porous anodic alumina membranes (AAMs) have attracted great amount of attention due to their potential application as templates for nanoengineering. Template-guided fabrication and assembly of nanomaterials based on AAMs are cost-effective and scalable methods to program and engineer the shape and morphology of nanostructures and nanomaterials. In this work, perfectly ordered AAMs with the reco...

Journal: :Nano letters 2005
Mingliang Tian Shengyong Xu Jinguo Wang Nitesh Kumar Eric Wertz Qi Li Paul M Campbell Moses H W Chan Thomas E Mallouk

A simple method for penetrating the barrier layer of an anodic aluminum oxide (AAO) film and for detaching the AAO film from residual Al foil was developed by reversing the bias voltage in situ after the anodization process is completed. With this technique, we have been able to obtain large pieces of free-standing AAO membranes with regular pore sizes of sub-10 nm. By combining Ar ion milling ...

2015
Zhiqiang Xu Yingzhen Lai Dong Wu Wenxiu Huang Sijia Huang Lin Zhou Jiang Chen

Titanium (Ti) implants with long-term antibacterial ability and good biocompatibility are highly desirable materials that can be used to prevent implant-associated infections. In this study, titania nanotubes (TNTs) were synthesized on Ti surfaces through electrochemical anodization. Octenidine dihydrochloride (OCT)/poly(lactic-co-glycolic acid) (PLGA) was infiltrated into TNTs using a simple s...

2014
Y. S. Joung

We present a new methodology using highly wetting porous titania films to develop microfluidic devices which can be employed for medical diagnostics. Capillary flows through thin porous media are attractive for small-scale liquid transport systems. Capillary flows show different characteristics depending on the medium, however, for most media it is challenging to realize arbitrary shapes and sp...

Journal: :Optics express 2008
Ee Jin Teo Andrew A Bettiol Mark B H Breese Pengyuan Yang Goran Z Mashanovich William R Headley Graham T Reed Daniel J Blackwood

In this paper, we report a direct-write technique for three-dimensional control of waveguide fabrication in silicon. Here, a focused beam of 250 keV protons is used to selectively slow down the rate of porous silicon formation during subsequent anodization, producing a silicon core surrounded by porous silicon cladding. The etch rate is found to depend on the irradiated dose, increasing the siz...

Journal: :Expert Syst. Appl. 2012
Hongyi Zhang Jianling Zhao Yuying Jia Xuewen Xu Cencun Tang Yangxian Li

Artificial neural network (ANN) was developed to predict the morphology of TiO2 nanotube prepared by anodization. The collected experimental data was simplified in an innovative approach and used as training and validation data, and the morphology of TiO2 nanotube was considered as three parameters including the degree of order, diameter and length. Applying radial basis function neural network...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید