silicon silicon dioxide thick and thin film technology

... coefficient () and the film thickness can be obtained If the thickness of the film is uniform, interference effects between substrate and film (because of multiple reflexions from the substrate /film interface) ... of the thin film In order to generate the new piezoelectric thin film, a crystal growth process of the thin film should be predicted accurately The stable crystal cluster of the thin film, which ... homogeneity and porosity of deposited films As the physics behind the sputtering process and plasma formation is not simple, and many basic and technological aspects of the sputtering process and AlN film...

Ngày tải lên: 29/06/2014, 09:20

... Zhmakin and Yu.N Makarov Chapter 11 Crystal Growth and Stoichiometry of Strongly Correlated Intermetallic Cerium Compounds 263 Andrey Prokofiev and Silke Paschen Part 213 Growth of Thin Films and ... Crystal Growth and Silicon Wafer Manufacturing Lukáš Válek and Jan Šik 43 Chapter Growth and Characterization of Doped CaF2 Crystals Irina Nicoara and Marius Stef 71 Chapter The Growth and Properties ... Controlled Growth of C-Oriented AlN Thin Films: Experimental Deposition and Characterization 287 Manuel García-Méndez Chapter 13 Three-Scale Structure Analysis Code and Thin Film Generation of a New Biocompatible...

Ngày tải lên: 29/06/2014, 09:20

... content on the structural and photoluminescence properties of silicon- rich silicon dioxide thin films Nanoscale Research Letters 2011 6:161 Submit your manuscript to a journal and benefit from: Convenient ... study through the Nanoscience and Nanotechnology program (DAPHNES project ANR-08-NANO-005) Authors’ contributions OD fabricated the thin films and carried out the optical and microstructural characterizations ... Nd concentrations of 0.08 and 0.27 at.%, and then, it progressively increases with increasing Nd content This demonstrates that the incorporation of Nd in the thin films generates disorder in...

Ngày tải lên: 21/06/2014, 05:20

... deposited silicon thin films generally have different bandgaps and Fermi levels compared to their crystalline counterpart, the conduction / valence band offsets of the doped and intrinsic silicon thin ... doped / intrinsic silicon thin films and the TCO films Higher series resistance is also expected from the silicon thin films given the lower mobility reported in literature, and the requirement ... hydrogen into the silicon thin film to passivate dangling bonds [48] To obtain high-quality hydrogenated silicon thin films, there is a need to understand and control the plasma physics and chemistry...

Ngày tải lên: 09/09/2015, 11:15

... of thin- film PV modules Current status of thin- film PV development Although currently the solar cell efficiency of thin- film technologies still lags behind wafer based c-Si technology, thin- film ... doped thin- film silicon films, i.e doped a-Si:H and doped µc-Si:H, are very defective and cannot be used as an absorber layer for thin- film solar cells Hence, un-doped (so called intrinsic) films ... interface of thin- film µc-Si:H solar cells on the solar cell performance 73 5.1 Requirements for the buffer layers 73 5.2 Modelling of silicon thin- film layers and of a reference thin- film µc-Si:H...

Ngày tải lên: 09/09/2015, 11:16

... respective thin- film poly-Si solar cells device properties The standard process of CSG Solar involves the PECVD deposition of barrier layers (silicon nitride and silicon oxide) and n+/p-/p+ amorphous silicon ... CHARACTERISATION OF POLYCRYSTALLINE SILICON THIN- FILM SOLAR CELLS 2.1 Background and Current Status The most efficient polycrystalline silicon (poly-Si) thin- film mini-module on glass was achieved ... sustainable One technology that is safe, renewable and sustainable is silicon- based thin- film solar cells with silicon being the second-most abundant material in the Earth’s crust While amorphous silicon...

Ngày tải lên: 10/09/2015, 09:23

... silicon, and after a fluence of about × 1016 cm-2, the mixing between gold and silicon begins Since the sputtering yield of gold is higher than silicon at 200 eV (1.13 for gold and 0.15 for silicon ... + Si σ Si (1) where AAu and ASi are the areas under the curves of Au and Si, respectively, and sAu and sSi are the laboratory elastic scattering cross sections of Au and Si, respectively Figure ... gold -silicon mixing The formation of gold silicides is a strong indication of the mixing between silicon and gold and has been previously discussed in the literature in the context of xenon and...

Ngày tải lên: 21/06/2014, 03:20

... Polycrystalline Si thin- film solar cells The polycrystalline Si (poly-Si) thin- film solar cell technology is another important thin- film PV technology Compared to the above mentioned thin- film technologies, ... thin- film solar cells on glass [11] 17 2.3 Glass and Si texturing techniques 2.3.1 Glass texturing techniques For amorphous silicon thin- film solar cells [12] and the micromorph silicon thinfilm ... texture, a plasma-etched RST, a thinner glass sheet (0.5 mm), and a high-quality back surface reflector (a stack of silicon dioxide and silver), a µm thick poly-Si thin- film solar cell on glass is...

Ngày tải lên: 09/09/2015, 11:16

... junction solar cells using this technology [9] Another silicon- based technology is poly -silicon thin film Poly -silicon (polycrystalline silicon or poly-Si) thin film is a common semiconductor ... dollar per watt and yet overcome these issues is through thin film technology Thin film PV technology combines the advantages of using small amounts of material with scalability The thin film material ... contrast, silicon- based thin film PV technologies are non-toxic and sustainable Amorphous silicon (a-Si) solar cells have already been on the market for years and can be found in calculators and watches,...

Ngày tải lên: 09/09/2015, 11:17

... hydrogenated amorphous silicon (a-Si:H), microcrystalline silicon (µc-Si), micro-morph tandem silicon and polycrystalline silicon (poly-Si) thin film solar cells CIGS and CdTe thin film solar cells ... us to the concept of thin film solar cells Thin film technologies comprises of copper indium gallium di-selenide (CIGS), cadmium telluride (CdTe) and silicon based thin film solar cells; which ... solar cell technology is a proven technology which is robust and long lasting 1.2 Thin film solar cells Si wafer technology currently dominates the PV industry because it is a proven and well understood...

Ngày tải lên: 10/09/2015, 09:31

... WO3 thin films on ITO layers with thickness, altering from 150 to 250nm Figure shows XRD and Raman spectra of WO3 powder sample and WO3 films, deposited on ITO layers/150 nm, 200 nm and 250 nm thickness ... difference in structure between WO3 films and WO3 powder sample and between one film to another These numbers show no difference in structure between WO3 powder and WO3 films However, we could not eliminate ... LeGore, R.J Lad, Thin solid films 400 (2001) 56 Huiyao Wang, Pei Xu, Tianmin Wang, Thin solid films 388 (2001) 68 Christian Salinga, Hansjörg Weis, Matthias Wuttig, Thin solid films 414 (2002)...

Ngày tải lên: 13/02/2014, 03:20

... for films type 1, 2, and 4, respectively The interruption time was set to 30 s Film thickness was controlled by ellipsometry (PLASMOS 2000) and stylus profilomentry (DEKTAK 3030) and was calculated ... kV and using a probe diameter up to ␮m Auger electron collection depth was up to 2.0 nm Results and discussion 3.1 Measurement of film thickness Table shows the measured thickness of the WO3 thin ... different films to nitrogen dioxide, carbon monoxide, ethanol and ammonia was investigated The sensors were kept in a temperature and moisture controlled test chamber (27 ◦ C, ±1 ◦ C and 41–43% RH) The...

Ngày tải lên: 20/03/2014, 13:05

... 4f5/2 and W 4f7/2 are found to lie at 37.1 and 35.20 eV, respectively and are contributed to lattice tungsten in the WO3 crystal 3.2 Gas sensing properties of the thin film sensors Results and discussion ... sensitivity and TMA concentration at 70◦ C NH3 , gasoline, C2 H5 OH, CH4 and CO at the same concentration of 1000 ppm and to water vapor These experimental results indicate that the WO3 thin film ... NH3 , gasoline, C2 H5 OH, CH4 and CO and water vapor These results indicate that the WO3 thin film sensor prepared by a sol–gel Fig X-ray photoelectron spectra of the thin film annealed at 500◦ C...

Ngày tải lên: 20/03/2014, 13:12

... Thin- Film capacitors from ceramic capacitors so that the term Accu has been employed as the designation for this series of devices, an abbreviation for “accurate.” THIN- FILM TECHNOLOGY Thin- film ... ACCU-P® CAPACITOR STRUCTURE Accu-P® Thin- Film Chip Capacitors ACCU-P® TECHNOLOGY APPLICATIONS The use of very low-loss dielectric materials, silicon dioxide and silicon oxynitride, in conjunction ... preferred device in R & D labs and production environments where hand soldering is used Accu-P® Thin- Film Chip Capacitors for RF Signal and Power Applications B1 ACCU-P® (Signal and Power Type Capacitors)...

Ngày tải lên: 15/04/2014, 14:33

... of Contents Thin Film Materials and Devices .1 1.1 THIN FILM MATERIALS 1.2 THIN FILM DEVICES 10 REFERENCES 14 Thin Film Processes 17 2.1 THIN FILM GROWTH PROCESS ... production and is considered an environmentally benign material technology for the next century.[1] Thin film technology is both an old and a current key material technology .Thin film materials and ... publications, the Thin Film Materials Technology Handbook of Thin Film Technology (Maissel and Glang) is still notable even though thirty years have passed since the book was published and many new and exciting...

Ngày tải lên: 23/04/2014, 19:19

... voltage of the thicker film and larger than the coercive voltage of the thinner film, the polarization of the embossed bottom area can be switched downward While for the embossed top area and un-embossed ... ZHC, and QL designed and carried out the experiments YFC and RL supervised the work ZJQ, AQJ, and XPQ participated in the discussion ZKS, YFC, and RL wrote the manuscript All authors read and ... fatigue in ferroelectric thin films Appl Phys Lett 2006, 89:032906-032906 21 Jiang AQ, Lin YY, Tang TA: Charge injection and polarization fatigue in ferroelectric thin films J Appl Phys 2007,...

Ngày tải lên: 21/06/2014, 01:20

... conditions, and for both types of metal NCs (Au and PtSi), it was measured to be around 10 -8 A/cm The reproducibility and the precision of the proposed fabrication technique (PLD and thermal ... planes and selected area electron diffraction patterns analysis (not shown) evidences the formation of platinum monosilicide (PtSi) crystalline phase in NCs In addition, unoxidized silicon islands ... solubility of impurities in SiO2 is quite low, and therefore the structures obtained after metal segregation and piling up between two SiO2 layers (tunnel oxide and SiO2 capping layer) were transformed...

Ngày tải lên: 21/06/2014, 05:20

... images of ZnO films with various growth angles ZnO films at (a-1) 0°, (b-1) 15°, and (c-1) 30° growth angles and their enlarged images (a-2, b-2, and c-2) Figure shows the XRD patterns and grain ... columnar ZnO film Columnar ZnO films with angles of 15° and 30° are shown in Figure 2b-1, c-1 To get a magnified view of the cross-section of the films, we enlarged the boxed section of the films, ... optical properties The thickness of the ZnO thin films was checked by FE-SEM and was fixed at 100 nm Three growth angles (0°, 15°, and 30°) of the columnar ZnO films were carefully selected The intensities...

Ngày tải lên: 21/06/2014, 17:20

... thin film electrode is very crucial to maintain both structural integrity and electrochemical cycling performance, small-scale thin film lithium ion batteries must have better understanding and ... interfacial properties of RuO2 anode film in lithium ion microbatteries”, The 5th International Conference on Technology Advances of Thin Films & Surface Coatings (Thin Films 2010), Jul 11 – 14, 2010, ... Conference on Technology Advances of Thin Films & Surface Coatings (Thin Films 2012), Jul 14 – 17, 2012, Singapore (invited talk by K Y Zeng) Conference Presentations (Poster) J Zhu, K Zeng and L Lu,...

Ngày tải lên: 09/09/2015, 10:14

... of thin films as integral component of the engineering systems [8, 9] The failure modes of thin film systems were studied earlier by Hutchinson and Suo [10], and further extended by Chen and ... of smoothing domains Figure 5.5 Partition of tip smoothing domains (sd) in the ESm-XFEM Note that sub-sds and sub-cells not carry any degrees of freedom and are solely used for smoothing and numerical ... normalized indentation depth for the thin films with different film thicknesses Figure 6.12 The curvature of crack front versus ratio of wedge tip length to film thickness Figure 6.13 Comparison...

Ngày tải lên: 10/09/2015, 08:26