sensors thin films and composites

... significant transformations and a large number of incremental and disruptive inventions in the area of thin- film and nanostructure science and fabrication technologies Thin films and nanostructures can ... infrared detectors, pressure sensors, accelerometers, force sensors, vibration, thickness, and chemical sensors and biosensors The reduction in size from bulk to micro- and nanostructured transducers, ... silicon-based technology, ferroelectric thin films are being used in the fabrication of microactuators and micromotors, capacitors, and other thin- film devices Functional thin films are being used in the...

Ngày tải lên: 04/06/2014, 15:14

Ngày tải lên: 14/03/2014, 13:20

... Components, Systems, and Measurement Techniques, Rajpal S Sirohi and M P Kothiyal 29 Electron and Ion Microscopy and Microanalysis: Principles and Applications, Second Edition, Revised and Expanded, Lawrence ... Systems, and Applications, edited by Bahram Javidi 79 Practical Design and Production of Optical Thin Films: Second Edition, Revised and Expanded, Ronald R Willey 80 Ultrafast Lasers: Technology and ... Neural Networks, and Fractals, edited by Francis T S Yu and Suganda Jutamulia 55 Devices for Optoelectronics, Wallace B Leigh 56 Practical Design and Production of Optical Thin Films, Ronald R...

Ngày tải lên: 04/06/2014, 13:44

... chemical [47] and biological sensors, and as UV light emitters and switches [47–50] Epitaxial layers and single crystals will be important for the development of optoelectronic (blue and ultraviolet ... Oxide Bulk, Thin Films and Nanostructures C Jagadish and S Pearton (Editors) © 2006 Elsevier Limited All rights reserved 22 D C Look to low-temperature growth and wet chemical etching, and high ... band is split into three band states, A, B and C by spin-orbit and crystal-field splitting This splitting is schematically illustrated in figure 1.5 The A and C subbands are known to posses symmetry,...

Ngày tải lên: 04/06/2014, 15:03

... the 1st, 500th, 1,000th, and 2,000th cycles for the MnO2 thin film synthesized at RT and b the variation of specific capacitance with respect to cycle number for the MnO2 thin film synthesized at ... surface area and smaller feature of the microspheres The excellent cycling stability and good rate capability of the film composed of dandelion-like microspheres coupled with the simple and low cost ... preparation of MnO2 thin films (as shown in Fig 1c) in this study is quite simple and convenient compared with electrochemical deposition, which is usually employed to prepare MnO2 thin films The morphologies...

Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 21/07/2014, 16:21

... to grow porous thin films with different composition and degree of crystallinity; while sputtering with substrate heating was used to deposit thin films with excellent quality and uniformity ... scholarship and various education and conference allowances during my candidature Last but not least, I wish to express my love and gratitude to my beloved parents and wife for their endless love and ... patient mentorship and guidance during my earlier candidature I treasure our friendships and all the time we spent together for both work and fun Special thanks go to Mrs Ho Chiow Mooi and Mr Koo Chee...

Ngày tải lên: 09/09/2015, 10:07

... Co, CoPd and CoAu films 108 Figure 6.4: SEM images of CoPd and Co thin films after annealing at 800° C for hours in forming gas ambient……………………………………… 108 Figure 6.5: In-plane and out-of-plane ... various CoAu thicknesses and layer configurations 92 Figure 5.10: (a) Morphologies of CoAu thin films after annealing at 800° for C hours (b) BSE images of CoAu thin films after annealing ... In-plane and out-of-plane magnetic hysteresis loops from CoAu and Co nanoparticles 113 Figure 7.1: SEM images of Co, Pd, and CoPd films annealed at different annealing temperatures and...

Ngày tải lên: 09/09/2015, 11:26

... YBa2Cu3O7-δ (YBCO) thin films, ferroelectric Ba0.1Sr0.9TiO3 thin films and their applications in passive microwave devices YBCO, Ba0.1Sr0.9TiO3 and multilayer YBCO/Ba0.1Sr0.9TiO3 thin films were fabricated ... References 119 CHAPTER 6: FERROELECTRIC THIN FILMS AND MULTILAYERS 98 121 6.1 Barium strontium titanate ferroelectric thin films 121 6.2 Ba0.1Sr0.9TiO3 thin films 124 6.2.1 Preparation of Ba0.1Sr0.9TiO3 ... setup and procedures to produce high quality thin films The crystalline structure and surface morphology of the thin films were examined using X-ray diffraction, scanning electron microscopy and...

Ngày tải lên: 16/09/2015, 08:30

... non-volatile and resistant to radiation These qualities enable it to be employed as magnetic random access memory (MRAM), read head sensors, large arrays of sensors for imaging and ultra-low-field sensors ... of Co and Ta 65 4.6.2: Coercivity of Co-Ta Films 66 4.6.3: TEM of Co-Ta Grains 68 4.6.4: MFM Images of Co-Ta Films 69 4.6.5: TEM Images of Co-Ta Films 71 4.6.6: Crystal Structure of Co-Ta Films ... CO-TA THIN FILMS AND THEIR APPLICATIONS IN MAGNETIC TUNNEL JUNCTIONS FONG KIEN HOONG (B Eng (Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL AND...

Ngày tải lên: 10/11/2015, 11:35

... of BD (low-k) thin films and Cu/BD multilayered stacks vii Summary thin films, 2) BD films with Ta and TaN barriers (single & dual stacks) and 3) Cu/BD stacks with Ta, TaN, SiC and SiN layers ... BD films with Ta and TaN as barrier layers Two samples of each single and dual stack with Ta and TaN barriers were prepared for this study To study the effect of SiC and SiN cap layers and Ta and ... of BD films and Cu/BD stacks Present study focuses on nanomechanical characterization of BD thin films of different thicknesses, single and dual dielectric stacks with Ta & TaN barriers, and Cu/BD...

Ngày tải lên: 26/11/2015, 22:40

... chemical/physical research areas and analysis methods in chemistry and physics • Organic Polymer Electroluminescence • Biosensors and Chemical Sensors • Polymer, Metal, and Inorganic Nanoparticle Synthesis ... Jae-Do Nam, Poly(3,4ethylenedioxythiophene)/Gold Nanocomposite Thin Films, the 9th seminar on “Nanomaterials and Nanocomposites: Processing and Performance”, sponsored by AUN/SEED-net project, Japan ... control the surface roughness and conductivity of PEDOT thin films The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)3 molar ratio of 0.5 and a glycerol concentration...

Ngày tải lên: 22/05/2016, 16:57

... Nelli, Methods for the preparation of NO, NO2 and H2 sensors based on tin oxide thin films, grown by means of the r.f magnetron sputtering technique, Sensors and Actuators B (1992) 79 – 88 [5] N Miura, ... less visible at 0.2 and 0.4 ppm NO2 and totally disappeared at 0.8 ppm and above The same two-step behavior at low NO2 concentrations was also observed with the other films, and is considered to ... (350°C) X Wang et al / Sensors and Actuators B 45 (1997) 141–146 Fig Normalized resistance vs concentration correlations in a log–log scale for WO3-based thin films (350°C) and sintered block (300°C)...

Ngày tải lên: 20/03/2014, 13:08

... Opto-Electronic Films Magnetic Films Barrier Films Sulfide Films Glassy Thick Films Unsupported Glass Films New Oxide-Based Gel Films Organic Modified Silicate Films Scuff ... of Na*O-SiOz Gel and Glass Summary and Conclusions References COATINGS, THIN PART II FILMS AND SURFACE 28 28 30 30 32 32 32 37 38 38 41 41 43 44 46 46 TREATMENT THIN FILMS FROM THE ... are largely in the area of thin films These films have been developed for optical, mechanical and electrical applications About one-third of this book covers thin films The second area where...

Ngày tải lên: 30/03/2014, 12:20

... and ultra -thin films is both a reference and a tutorial for understanding the most common thin- films and coating techniques The book encompasses recent approaches and future trends in coating and ... automotive and aerospace industries Advanced coating technologies for the automotive and aerospace industries Packaging applications Coatings for the electronics and sensors industry Paints and enamels ... fields of both physics and chemistry The goal of this book is to discuss the basics of ultra -thin films and nanocoatings and their synthesis techniques, surface characterization, and performance for...

Ngày tải lên: 28/04/2014, 10:53

... X., Poon, C C., and Tam, A C., 1998, ‘‘Laser-Assisted Surface Modification of Thin Chromium Films, ’’ Opt Eng., 37, No 3, pp 1033–1041 ͓6͔ Chandrasekhar, S., 1961, Hydrodynamic and Hydromagnetic ... 0.3-␮m thin chromium film and a 0.6-␮m glass substrate The glass substrate is much thinner than that used in the experiments; however, the thermal penetration depth into the glass is very small within ... ͓͑13–15͔͒ Bostanjoglo and Nink ͓16͔ and Balandin et al ͓2͔ reported that the effect of an increased surface tension above the melting point in metals during laser melting of thin films could cause...

Ngày tải lên: 06/05/2014, 08:55

... more fundamental understanding of gas sensing mechanisms of semiconducting oxide thin films has been pursued since the advent of micro array gas sensors using thin films and micromachining technology ... operative in thin film sensors Specifically, the influence of thin film processing conditions and DC applied bias on the properties and gas sensing performance of semiconducting thin films on micro ... exp − Εg kT (2.19) where Nc and Nv are the density of state of conduction band and valence band, respectively, and Eg is the energy band gap of materials When electrons and holes are tightly bound...

Ngày tải lên: 28/05/2014, 14:44

... size and the lattice strain caused by the defect and/ or dislocations [16] The average particle sizes and FWHM values of the films are summarized in Table Table shows the variation of Zn and S ... properties and helped draft the manuscript KNH and KSH detailed the original idea and modified the first draft of manuscript YGS finalized the manuscript and supervised the work All authors read and ... Chemical bath-deposited ZnS thin films: preparation and characterization Appl Surf Sci 2008, 254:5711-5714 Metin H, Esen R: Annealing studies on CBD grown CdS thin films J Cryst Growth 2003, 258:141-148...

Ngày tải lên: 20/06/2014, 21:20

... [41] and close to films deposited by other methods such as CVD (3.19 to 3.23 eV) [42] and pulsed laser deposition (3.26 eV) [43] and (3.1 eV) [44] As shown in Figure 9b and the inset, ZnO films ... JL, Hamersa EAG, Schropp REI, van de Sandena MCM: Surface textured ZnO films for thin film solar cell applications by expanding thermal plasma CVD Thin Solid Films 2001, 392:226-230 35 Robbins JJ, ... parameters and structural and electrical film properties J Appl Phys 1998, 83:1087-1095 37 Mahieu R, Ghekiere P, Depla D, De Gryse R: Biaxial alignment in sputter deposited thin films Thin Solid Films...

Ngày tải lên: 20/06/2014, 22:20

... additional energy levels in the band gap, which are localized and close to either the conduction or the valence band Since the energy difference between these levels and band edges is very small, a ... preparation of silver nanoparticles and their thin films is simple, convenient, and viable which allows nanocrystalline silver particles of spherical shape and almost narrow size distribution ... particle size but also the particle shape and particle size distribution as well In the present investigation, the synthesis of silver nanoparticles and thin films by wet chemical solution route [27]...

Ngày tải lên: 21/06/2014, 02:20