Investigation of capacitive humidity sensing behavior of silicon nanowires

... Investigation of capacitive humidity sensing behavior of silicon nanowires Huilin Li, Jian ZhangÃ, BaiRui Tao, LiJuan Wan, WenLi GongDepartment of Electronic Engineering, ... 2008PACS:71.15.Pd71.20.Mq73.21.Hb73.63.RtKeywords: Silicon nanowires Humidity sensorRelative humidity Capacitance–frequency conversionabstractIn this paper, the fabrication and the sensing characteristics of the humidity sensors ... when the relative humidity comes back tothe same value. So the silicon nanowires humidity sensors canwork repeatedly.3.3. StabilityIn this study, the silicon nanowires humidity sensor wasmeasured...

hydrothermal synthesis and humidity sensing property of zno nanostructures

... morphology of ZnO and concentration of In(OH)3had an inﬂuence on the water vapor sensing properties.Ó 2012 Elsevier Inc. All rights reserved.1. Introduction Sensing the relative humidity of our ... prism-like series due to their more intensive visible emission.3.3. Humidity sensing property of nanocompositesThe humidity sensing of ZnO and ZnO nanocomposite sampleswere determined using QCM ... concentration of indium ions owing to the forma-tion of rising amount of In(OH)3nanoparticles (Table 4).3.2. Optical properties of nanocompositesThe UV–Vis optical properties of ZnO and ZnOAIn(OH)3nano-composite...

Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)

... the investigation of Au and In as solventsfor the growth of silicon nanowires on Si(1 1 1) via PVD bymeans of the well-known vapor–liquid–solid (VLS) me-chanism will be presented. Silicon nanowires ... theeffects of different diffusion coefﬁcients of gold and indiumon silicon, the solubility of substrate atoms in the twometals, the surface tension of gold and indium and thesurface energy of silicon ... works on thegrowth of silicon nanowires from indium by means of PVDwere found.In our case, the growth of nanowires from indium seemsto be rather insensitive to change of parameters like sub-strate...

Structural investigation of silicon nanowires using GIXD and GISAXS evidence of complex saw tooth faceting

... faceting of the sides of the nanowires. This ﬁne saw-tooth faceting appears with alternating upward and down-ward orientations on each side of the nanowires, reﬂecting the trigonal symmetry of the nanowires. The ... controlled VLSgrowth of silicon nanowires see [8]. After growth, scanning elec-tron microscopy (SEM) images of the resulting nanowires wereproduced (Fig. 1) and showed h111i oriented nanowires perpendic-ular ... provide evidence of thehexagonal cross-section of the wires. The angle between twostreaks is 60° and the directions of the six sides of the nanowires can be deduced from the directions of these streaks...

influence of dopant in the synthesis, characteristics and ammonia sensing behavior

... Thereare only a few reports of direct doping and casting of PANI ﬁlms in thesalt form using functionalized dopants. None of the above works haveshown gas sensing performances of PANI. For getting ... studied gas sensing behavior of PPy-PVA ﬁlms prepared by electrochemical polymeriza-tion on to a precoated PVA matrix. These studies contrasted theadvantages of mechanical properties of the host ... gas sensing characteristics were studied. Here wehave primarily focused our investigation on the comparative study of the extent of intermolecular force, chain association and morphology of the...

An investigation into the reality of teaching and learning speaking skills to the 2nd year non-major english students at pre-intermediate level of proficiency at hanoi university of industry

... Pre-Intermediate level of Proficiency at Hanoi University of Industry” is submitted in partial fulfillment of the requirements for the degree of Master of Arts is the result of my own work, except ... 25viTABLE OF CONTENTSCANDIDATE’S STATEMENT iACKNOWLEGDEMENTS iiABSTRACT iiiLIST OF ABREVIATIONS ivLIST OF FIGURES AND TABLES vTABLE OF CONTENTS viPART ONE: INTRODUCTION 1I. Rationale of the ... Definition of Motivation121.4.2. Types of Motivation 13Chapter two Research Methodology 152.1. Practical Situation of Teaching and Learning English Speaking Skills at HaUI 152.1.1. Description of...

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Behavior of Nitrite Oxidizers in the Nitrification/Denitrification Process for the Treatment of Simulated Coke-Oven Wastewater

... activities of nitrite oxidizing bacteria. - 31 - Journal of Water and Environment Technology, Vol.5, No.1, 2007 Figure 2 Behavior of nitrate and nitrite at the end of the aerobic tank. Behavior of ... with ethanol at a final concentration of 10%, then transported to the laboratory of UT at 4oCstored. Then, each of the samples were divided into two. One of them was for DNA extraction and was ... implementation of QP-PCR was applied, and the condition was optimized. In general, the higher concentration of primers can lead to the formation of primer dimers. Also, the cost of the chemicals...

Behavior of Zinc in a Constructed Wetland System Receiving Domestic Wastewater

... College of Agriculture and Nutrition in Japan, to remove nutrient salts before the discharge of the water to a pond for agricultural use. We examined the removal efficiencies of Zn and its behavior ... major source of Zn pollution of aquatic ecosystems. In recent years, considerable attention has been directed toward constructed wetlands, because of their low cost and ease of operation ... wetland. The increase in the amount of Zn in the top 10 cm of wetland soil corresponded to 69.8% of the Zn removed by the constructed wetland system. Eighty percent of the Zn increase in the soil...

An experimental investigation of performance and exhaust emission of a diesel engine fuelled with Jatropha biodiesel and its blends

... supply large volume of biodiesel, in fact, nearly half a dozen states of India have reserve a total of 1.72 million hectares of land for Jatropha cultivation and small quantities of Jatropha biodiesel ... S.N.N. Optimization of alkali catalyzed transesterification of Pongamia pinnata oil production of biodiesel. Bioresource Technology. 2006, 97, 1392–1397. [2] Usta N. Use of tobacco seed oil ... An investigation of using biodiesel/marine diesel blends on the performance of a stationary diesel engine. Biomass Bioenerg. 2003, 24, 41–49. [5] Canakci M., Van Gerpen J.H. Comparison of...

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