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Artículos de revistas sobre el tema "Nitrure de titane (TiN)"

Autor: Grafiati
Publicado: 27 de julio de 2024
Última modificación: 31 de julio de 2025

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1

Kabbaj, M., A. Galerie, and M. Caillet. "Revêtements composites TiAl3TiN sur le titane." Journal of the Less Common Metals 108, no. 1 (1985): 1–21. http://dx.doi.org/10.1016/0022-5088(85)90427-8.

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2

Nardou, F., P. Raynaud, and M. Billy. "Role de l'hydrogene dans le comportement du nitrure de titane en presence de melanges H2-H2O." Journal of the Less Common Metals 144, no. 2 (1988): 321–29. http://dx.doi.org/10.1016/0022-5088(88)90146-4.

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3

Oh, Han Jun. "Synthesis of N Doped Titania Photocatalyst by Using an Electrochemical Oxidation of TiN Layer." Advanced Materials Research 651 (January 2013): 302–5. http://dx.doi.org/10.4028/www.scientific.net/amr.651.302.

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In order to improve the photocatalytic efficiency, the N doped anodic titania film for photocatalyst was synthesized by anodic oxidation of TiN layer in sulfuric electrolyte, and the photocatalytic properties of N doped TiO2layer were investigated. During the oxidation process of the TiN layer, nitrogen was doped into the anodic titania film due to the change of the titanium nitride layer to TiO2layer film. In the evaluation of dye degradation, N doped titania catalyst shows much higher efficiency than non-doped titania film.
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4

Pacheco, F., R. Palomino, G. Martínez, A. Mendoza-Galván, R. Rodriguez, and V. M. Castaño. "Optical Properties of Titania-Cobalt Nitrate Composite Thin Films." Advanced Composites Letters 5, no. 6 (1996): 096369359600500. http://dx.doi.org/10.1177/096369359600500603.

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Optical properties of titania thin films supported on silica plates and compounded with varying amounts of Co(II) from cobalt nitrate are reported. The ellipsometric characterization allows to model the spatial micro-structure of these thin film composites. The titania films were produced by the sol-gel method at room temperature and their thicknesses can be controlled by modifying the experimental conditions. The refractive index of the doped titania films was also determined by using ellipsometry.
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5

Choi, Jong-Jin, Gun-Tae Park, Chee-Sung Park, and Hyoun-Ee Kim. "Ferroelectric and piezoelectric properties of highly oriented Pb(Zr,Ti)O3 film grown on Pt/Ti/SiO2/Si substrate using conductive lanthanum nickel nitrate buffer layer." Journal of Materials Research 20, no. 3 (2005): 726–33. http://dx.doi.org/10.1557/jmr.2005.0087.

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The orientation and electrical properties of Pb(Zr,Ti)O3 thin films deposited on a Pt/Ti/SiO2/Si substrate using lanthanum nickel nitrate as a conductive buffer layer were analyzed. The lanthanum nickel nitrate buffer layer was not only electrically conductive but also effective in controlling the texture of the lead zirconate titanate (PZT) thin film. The role of the lanthanum nickel nitrate buffer layer and its effects on the orientation of the PZT thin film were analyzed by x-ray diffraction, electron beam back-scattered diffraction, and scanning electron microscopy. The annealed lanthanum
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6

Ben Aissa, Chokri, and Kaouther Khlifi. "Caractérisation nano-mécanique et tribologique des revêtements TiO2 et TiN déposés sur acier inoxydable 316L pour applications biomédicales." Matériaux & Techniques 109, no. 1 (2021): 104. http://dx.doi.org/10.1051/mattech/2021016.

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Dans ce travail, nous avons développé des couches nanométriques biocompatibles à base de titane (TiN et TiO2) sur acier inoxydable 316L, par CAE-PVD (Cathodic Arc Evaporation), qui est un procédé efficace pour la synthèse de revêtements de haute qualité. Nous avons axé notre étude sur une caractérisation mécanique et tribologique des revêtements par des tests d’indentation et des rayures. Les résultats obtenus montrent une morphologie dense et uniforme couplée à des propriétés mécaniques et interfaciales importantes. Les revêtements TiN et TiO2 ont montré une dureté comprise entre 5,9 GPa et 8
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7

Žáček, Vladimír, and Radek Škoda. "Large titanium nitride (osbornite) crystals in the metallurgical slag from Kladno steel-works (Czech Republic)." Geoscience Research Reports 57, no. 01 (2024): 28–33. http://dx.doi.org/10.3140/zpravy.geol.2024.04.

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Large crystals of titanium nitride (mineral osbornite) from metallurgical slag were studied by EMPA, XRD and Raman spectroscopy. The sample was collected at metallurgical dump in Kladno in the early 1970s and briefly described by Žáček and Ondruš (2003). The sample has a size of about 40 × 30 × 30 mm and is notable for its high density and conspicuous cubes of copper-like red to gold colour with metallic lustre (Fig. 1–2). The material consists of dominant gehlenite (~ 65% of the sample, all vol. %), osbornite (~ 20%), metallic iron (~ 8%), oldhamite (~ 5%), spinel (~1%) and anorthite (~1%), s
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8

Pham, Toan Minh, Kyungmin Yim, and Jinsoo Kim. "Synthesis and Characterization of Titanium Nitride-Supported Iridium-Nickel Alloys as Highly Active Electrocatalysts for Hydrogen Evolution Reaction." ECS Meeting Abstracts MA2024-02, no. 42 (2024): 2770. https://doi.org/10.1149/ma2024-02422770mtgabs.

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Iridium serves as the active electrocatalyst in driving the hydrogen evolution reaction (HER), an important process in water-splitting technology for the production of green hydrogen. However, the expensive cost and limited durability of Ir-based catalysts have hindered the widespread application of HER. Thus, there is research interest in reducing the mass loading of Ir and enhancing long-term stability. In this work, we synthesized highly stable titanium nitride (TiN) to serve as the supporting material for low-loading Ir-Ni alloys (Ir-Ni/TiN) utilized in HER. The TiN was derived from the py
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9

Wang, Yao-Chin, Kai-Huang Chen, Ming-Cheng Kao, et al. "Bipolar Switching Properties and Reaction Decay Effect of BST Ferroelectric Thin Films for Applications in Resistance Random Access Memory Devices." Nanomaterials 15, no. 8 (2025): 602. https://doi.org/10.3390/nano15080602.

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In this manuscript, strontium barium titanate (BST) ferroelectric memory film materials for applications in the feasibility of applying to non-volatile RAM devices were obtained and compared. Solutions were synthesized with a proportional ratio and through the deposition of BST films on titanium nitride/silicon substrates using the sol–gel method, using rapid thermal annealing for defect repair and re-crystallization processing. The crystallization structure and surface morphology of annealed and as-deposited BST films were obtained by XPS, XRD, and SEM measurements. Additionally, the ferroele
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10

Falaras, P., I. M. Arabatzis, T. Stergiopoulos, and M. C. Bernard. "Enhanced activity of silver modified thin-filmTiO2photocatalysts." International Journal of Photoenergy 5, no. 3 (2003): 123–30. http://dx.doi.org/10.1155/s1110662x03000230.

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Novel, composite silver/titania immobilized on glass substrates were prepared, characterized and their photocatalytic activity was evaluated. The undoped original material consists of rough, high surface area nanocrystalline titanium dioxide (TiO2) thin films. To increase their efficiency, the TiO2films were modified by silver cations deposition and subsequent UV-C irradiation. SEM pictures confirmed the existence of an open porous network of interconnected titania particles on the semiconductor surface. AFM analysis proved the presence of spherical silver particles on the catalyst surface and
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11

Lisińska-Czekaj, Agata, M. Czaja, Lucjan Kozielski, et al. "Photoluminescence of Nanocrystalline Bismuth Titanate Thin Films Synthesized by the Sol-Gel Method." Materials Science Forum 514-516 (May 2006): 128–32. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.128.

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The present study is devoted to synthesis and investigation of photoluminescence in the nanosized Bi4Ti3O12 (BTO) thin films. The randomly oriented BTO thin films have been obtained by a modified hybrid sol-gel process. Bismuth nitrate and titanium (IV) butoxide were used as the starting materials. The thin films were deposited on silicon, glass and stainless steel by spin coating and crystallized by the conventional thermal annealing at temperature T=650°C. Formation of the layer perovskite-type structure of the orthorhombic symmetry was confirmed by X-ray diffraction method. Conservation of
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12

Žener, Boštjan, Lev Matoh, Giorgio Carraro, Bojan Miljević, and Romana Cerc Korošec. "Sulfur-, nitrogen- and platinum-doped titania thin films with high catalytic efficiency under visible-light illumination." Beilstein Journal of Nanotechnology 9 (June 4, 2018): 1629–40. http://dx.doi.org/10.3762/bjnano.9.155.

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Titanium dioxide photocatalysts have received a lot of attention during the past decades due to their ability to degrade various organic pollutants to CO2 and H2O, which makes them suitable for use in environmental related fields such as air and water treatment and self-cleaning surfaces. In this work, titania thin films and powders were prepared by a particulate sol–gel route, using titanium tetrachloride (TiCl4) as a precursor. Afterwards, the prepared sols were doped with nitrogen (ammonium nitrate, urea), sulfur (thiourea) and platinum (chloroplatinic acid), coated onto glass substrates by
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13

Schmitz, Tobias, Maren Jannasch, Tobias Weigel, et al. "Nanotopographical Coatings Induce an Early Phenotype-Specific Response of Primary Material-Resident M1 and M2 Macrophages." Materials 13, no. 5 (2020): 1142. http://dx.doi.org/10.3390/ma13051142.

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Implants elicit an immunological response after implantation that results in the worst case in a complete implant rejection. This biomaterial-induced inflammation is modulated by macrophages and can be influenced by nanotopographical surface structures such as titania nanotubes or fractal titanium nitride (TiN) surfaces. However, their specific impact on a distinct macrophage phenotype has not been identified. By using two different levels of nanostructures and smooth samples as controls, the influence of tubular TiO2 and fractal TiN nanostructures on primary human macrophages with M1 or M2-ph
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14

Sakka, Yoshio, Tohru Suzuki, and Tetsuo Uchikoshi. "Fabrication and Some Properties of Textured Ceramics by Colloidal Processing in High Magnetic Field." Key Engineering Materials 352 (August 2007): 101–6. http://dx.doi.org/10.4028/www.scientific.net/kem.352.101.

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Recently to improve properties, highly microstructure controlled ceramics such as fine-grained, textured and laminated structures are required. We have demonstrated a new processing of textured ceramics with a feeble magnetic susceptibility by colloidal processing in a high magnetic field and subsequent heating. As colloidal processing, slip casting and electrophoretic deposition (EPD) have been conducted successfully. Colloidal processing is known to be a powerful method for consolidating fine particles with a high density and homogeneous microstructure. The degree of orientation strongly dep
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15

Zhang, Jing, Zhengxing Huang, Liming Zheng, Xiaobo Tian, Wengang Yin, and Shihua Ding. "Research on Photo Catalytic Performance of TiO2 Film Doped with Li+." MATEC Web of Conferences 358 (2022): 01047. http://dx.doi.org/10.1051/matecconf/202235801047.

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Based on sol-gel method and spin coating process, TiO2 film doped with Li+ is prepared by utilizing analytical pure butyl titanate, lithium nitrate, absolute ethanol, glacial acetic acid, acetylacetone and deionized water as raw material. The Li+ ion which has equal radius as Ti4+ ion is chosen in experiments for doping and modification. Experimental results show certain increase of catalytic efficiency in TiO film doped with Li+. However, the increase level of catalytic efficiency gradually shows some decrease when the dopant amount changes from 0.025mol to 0.1mol. Catalytic efficiency is rai
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16

Ma, Youcao, Jian Song, Xubo Wang, Yue Liu, and Jia Zhou. "Synthesis, Microstructure and Properties of Magnetron Sputtered Lead Zirconate Titanate (PZT) Thin Film Coatings." Coatings 11, no. 8 (2021): 944. http://dx.doi.org/10.3390/coatings11080944.

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Compared to aluminum nitride (AlN) with simple stoichiometry, lead zirconate titanate thin films (PZT) are the other promising candidate in advanced micro-electro-mechanical system (MEMS) devices due to their excellent piezoelectric and dielectric properties. The fabrication of PZT thin films with a large area is challenging but in urgent demand. Therefore, it is necessary to establish the relationships between synthesis parameters and specific properties. Compared to sol-gel and pulsed laser deposition techniques, this review highlights a magnetron sputtering technique owing to its high feasi
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17

Kim, Hyunho, Adrees Arbab, Benji Fenech-Salerno, et al. "Barium titanate-enhanced hexagonal boron nitride inks for printable high-performance dielectrics." Nanotechnology 33, no. 21 (2022): 215704. http://dx.doi.org/10.1088/1361-6528/ac553f.

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Abstract Printed electronics have been attracting significant interest for their potential to enable flexible and wearable electronic applications. Together with printable semiconductors, solution-processed dielectric inks are key in enabling low-power and high-performance printed electronics. In the quest for suitable dielectrics inks, two-dimensional materials such as hexagonal boron nitride (h-BN) have emerged in the form of printable dielectrics. In this work, we report barium titanate (BaTiO3) nanoparticles as an effective additive for inkjet-printable h-BN inks. The resulting inkjet prin
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18

Wang, S. X., L. M. Wang, and C. L. Lin. "XTEM Study of the Microstructure of PZT Thin Films." Microscopy and Microanalysis 6, S2 (2000): 458–59. http://dx.doi.org/10.1017/s1431927600034784.

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Lead zirconate titanate (PbZrxTil-xO3, PZT) is one of the important ferroelectric materials for the storage elements of high-speed non-volatile memories. It also has much potential to be used in pyroelectric sensor, ultrasonic motor, and multiplayer ceramic capacitor.PZT (Zr/Ti = 48/52) thin films were prepared using a metal-organic decomposition (MOD) process. The precursor solution used for PZT thin film preparation was based on lead acetate trihydrate, Pb(CH3COO)2; zirconium nitrate, Zr(NO3)4.5H2O; and titanium nbutoxide, Ti(nC2H9)4. 2-butoxyethanol was chosen as a solvent. A 30% excess Pb
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19

Cabello-Ribota, Blanca Selenis, Rurik Farías, and Simón Yobanny Reyes-López. "Surface Enhanced Infrared Absorption Studies of SiO2–TiO2–Ag Nanofibers: Effect of Silver Electrodeposition Time on the Amplification of Signals." Crystals 11, no. 5 (2021): 563. http://dx.doi.org/10.3390/cryst11050563.

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Surface Enhanced on Infrared Absorption (SEIRAS) and Raman Spectroscopy (SERS) are nondestructive analytic techniques used to detect low concentrations and recognize the fingerprints of molecules. The recognition of the absorption from samples by conventional infrared spectroscopy (IR) via Attenuated Total Reflection (ATR) is difficult for molecules with a low signal strength. However, developed structures with SERS and SEIRAS effect present problems such as high cost, low stability, and low compatibility. Research into new media to obtain greater amplification is largely based on the creation
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20

Chen, Hua Jun, Xiao Jing Xi, Dong Li, and Rui Wang. "Preparation and Photocatalytic Activity of Bi Doped TiO2 with Visible-Light Response." Advanced Materials Research 550-553 (July 2012): 404–10. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.404.

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A Bi-TiO2 composite with high photocatalytic activity was prepared using tetrabutyl titanate and bismuth nitrate as raw material by hydrothermal method. The structure was characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM), X-ray energy dispersive spectroscopy(EDS), X-ray fluorescence(XRF) and UV-vis diffuse reflectance spectrophotometer(UV-vis DRS). The results show that anatase nanometer titanium dioxide was prepared, in which Bi3+ take the place of Ti4+. The surface area of the sample was higher, ca.312.6m2•g-1. Bi doping caused red-shift of the absorption spectru
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21

Zhou, Junchao, Mingzhao Liu, Ming Lu, and Pao Tai Lin. "Mid-infrared frequency doubling using strip-loaded silicon nitride on epitaxial barium titanate thin film waveguides." Optics Letters 45, no. 23 (2020): 6358. http://dx.doi.org/10.1364/ol.403760.

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22

Tryba, Beata, Bartłomiej Prowans, Rafał Jan Wróbel, Paulina Szołdra, and Waldemar Pichór. "Application of TiO2 Supported on Nickel Foam for Limitation of NOx in the Air via Photocatalytic Processes." Molecules 29, no. 8 (2024): 1766. http://dx.doi.org/10.3390/molecules29081766.

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TiO2 was loaded on the porous nickel foam from the suspended ethanol solution and used for the photocatalytic removal of NOx. Such prepared material was heat-treated at various temperatures (400–600 °C) to increase the adhesion of TiO2 with the support. Obtained TiO2/nickel foam samples were characterized by XRD, UV–Vis/DR, FTIR, XPS, AFM, SEM, and nitrogen adsorption at 77 K. Photocatalytic tests of NO abatement were performed in the rectangular shape quartz reactor, irradiated from the top by UV LED light with an intensity of 10 W/m2. For these studies, a laminar flow of NO in the air (1 ppm
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23

Du, Huiling, Cuiying Ma, Wuxiang Ma, and Haiting Wang. "Microstructure evolution and dielectric properties of Ce-doped SrBi4Ti4O15 ceramics synthesized via glycine-nitrate process." Processing and Application of Ceramics 12, no. 4 (2018): 303–12. http://dx.doi.org/10.2298/pac1804303d.

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Ce-doped strontium bismuth titanate (SrBi4Ti4O15, SBT) powders were prepared by glycine-nitrate process at 400-500?C and the ceramics were sintered at 980?C. The phase composition, morphology and electric properties were investigated. It was found that the calcined powders consist of a single phase SBT and the calcination temperature is lower than that for the conventional solid state method. The morphology of Cedoped SBT is flake-like and the layer size decreases with Ce-addition from 12 to 2?m confirming that the addition of Ce3+ inhibits grain growth. The Curie temperature of Ce-doped SBT i
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24

Junmin, Xue, and John Wang. "Lead Zirconate Titanate Via Reaction Sintering of Hydroxide Precursors." Journal of Materials Research 14, no. 4 (1999): 1503–9. http://dx.doi.org/10.1557/jmr.1999.0201.

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Lead zirconate titanate (PZT) has been successfully fabricated via a unique one-step sintering processing route, which is simpler than the traditional precursor-calcinationmilling- pelleting-sintering route and is able to deliver an enhanced sintered density at a much reduced sintering temperature. The hydroxide precursor was prepared by coprecipitation from a mixed nitrate solution containing Pb2+, Zr4+, and Ti4+ ions, and it was then compacted into pellets without being calcined at a low temperature. The precursor pellets were dehydrated at 400, 500, and 600 °C for 4 h, respectively, followe
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25

Chipatecua Godoy, Yuri, Olof Tengstrand, Jairo Olaya Florez, et al. "Corrosion Resistant TiTaN and TiTaAlN Thin Films Grown by Hybrid HiPIMS/DCMS Using Synchronized Pulsed Substrate Bias with No External Substrate Heating." Coatings 9, no. 12 (2019): 841. http://dx.doi.org/10.3390/coatings9120841.

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Ti0.92Ta0.08N and Ti0.41Al0.51Ta0.08N thin films grown on stainless-steel substrates, with no external heating, by hybrid high-power impulse and dc magnetron sputtering (HiPIMS/DCMS), were investigated for corrosion resistance. The Ta target was operated in HiPIMS mode to supply pulsed Ta-ion fluxes, while two Ti (or Ti and Al) targets were operated in DCSM mode in order to provide a high deposition rate. Corrosion resistance was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy employing a 3.5% NaCl solution at room temperature. The 300-nm-thick transi
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26

Yao, Lan Fang, Xiong Tang, Xin Pei Yan, and Lin Li. "Preparation and Photocatalytic Activity of Nd3+and CTAB Co-Doped Nanometer TiO2 Thin Films." Key Engineering Materials 562-565 (July 2013): 858–63. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.858.

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Pure TiO2, Nd3+doped TiO2 and Nd 3+-CTAB co-doped TiO2 nanometer thin films were prepared by the sol-gel technique with tetrabutyl titanate and neodymium nitrate as raw materials and surfactant cetyltrimethylammonium bromide (CTAB) as template. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Visible absorbance spectroscopy (UV-Vis). The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange. The results show that the all samples calcined at 500°C are all anatase, and there are slight red shifts of the Nd3+doped Ti
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27

Ongmali, Duangamol, Sakollapath Pithakratanayothin, Sureerat Jampa, Apanee Luengnaruemitrchai, Thanyalak Chaisuwan, and Sujitra Wongkasemjit. "Remarkable Activity of Nanoarchitectonics Mesoporous CuO/CeO2–TiO2 Prepared by Nanocasting and Deposition Precipitation Techniques." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 2791–802. http://dx.doi.org/10.1166/jnn.2020.17428.

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In this work, a ceria (CeO2) support was modified with titania (TiO2) by nanocasting using MCM-48 as a hard template and then loading Cu (as the nitrate salt) at different levels (3–9% by weight) by deposition-precipitation followed by calcination. The addition of TiO2 in MSP CeO2 revealed that the MSP CeO2 was significantly improved the oxygen vacancies of the catalyst by increasing the Ce3+ content from 38 to 75% and stabilizing the Ce3+ species by bonding with the oxygen as Ce(4f)-O(2p)-Ti(3d). Moreover, the bonding of MSP CeO2 with TiO2 generated the oxygen defect vacancies (s–Ti3+), allow
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28

Park, S. J., and J. G. Eden. "Electrical characteristics and lifetimes of microdischarge devices having thin dielectric films of aluminum oxide,boron nitride, or barium titanate." Electronics Letters 39, no. 10 (2003): 773. http://dx.doi.org/10.1049/el:20030430.

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29

Vargas, S., R. Arroyo, E. Haro, and R. Rodríguez. "Effects of cationic dopants on the phase transition temperature of titania prepared by the sol-gel method." Journal of Materials Research 14, no. 10 (1999): 3932–37. http://dx.doi.org/10.1557/jmr.1999.0532.

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The effect of different cations in the anatase–rutile phase transition temperatures for titania prepared by the sol-gel method was studied. The metal dopants were chosen from different periods and groups of the periodic table to see the role played by the electronic configuration, the oxidizing state, the atomic size, etc. on these temperature modifications. Linear relationships between the anatase–rutile phase transition temperatures and the ionic radii for alkali metal, alkaline earth metal, and group 3 and 13 elements were obtained. For elements of the period 4, there was not such a defined
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30

Zohni, Omar, Gregory Buckner, Taeyun Kim, Angus Kingon, Jeff Maranchi, and Richard Siergiej. "Effects of adhesion layers on the ferroelectric properties of lead zirconium titanate thin films deposited on silicon nitride coated silicon substrates." Thin Solid Films 516, no. 18 (2008): 6052–57. http://dx.doi.org/10.1016/j.tsf.2007.10.130.

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31

Kisch, Horst. "In the Light and in the Dark: Photocatalytic Fixation of Nitrogen into Ammonia and Nitrate at Iron Titanate Semiconductor Thin Films." European Journal of Inorganic Chemistry 2020, no. 15-16 (2020): 1376–82. http://dx.doi.org/10.1002/ejic.201901099.

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32

Kazys, Rymantas, and Vaida Vaskeliene. "High Temperature Ultrasonic Transducers: A Review." Sensors 21, no. 9 (2021): 3200. http://dx.doi.org/10.3390/s21093200.

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There are many fields such as online monitoring of manufacturing processes, non-destructive testing in nuclear plants, or corrosion rate monitoring techniques of steel pipes in which measurements must be performed at elevated temperatures. For that high temperature ultrasonic transducers are necessary. In the presented paper, a literature review on the main types of such transducers, piezoelectric materials, backings, and the bonding techniques of transducers elements suitable for high temperatures, is presented. In this review, the main focus is on ultrasonic transducers with piezoelectric el
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33

Snyder, Mark Q., Svetlana A. Trebukhova, Boris Ravdel, et al. "Synthesis and characterization of atomic layer deposited titanium nitride thin films on lithium titanate spinel powder as a lithium-ion battery anode." Journal of Power Sources 165, no. 1 (2007): 379–85. http://dx.doi.org/10.1016/j.jpowsour.2006.12.015.

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34

Zhao, Shuai, Dong-Xue Lin, and Yu-Xin Wang. "The Synthesis and Optical Properties of Zinc-Nitrogen Co-Doped TiO2 Thin Films Using Sol–Gel Derived Spin-Coating Method." Journal of Nanoelectronics and Optoelectronics 16, no. 6 (2021): 967–73. http://dx.doi.org/10.1166/jno.2021.3050.

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All of the TiO2 films including intrinsic TiO2 film, Zn single doped film with 2.0 at% content and N doped films with 4.0 at%, 6.0 at%, 8.0 at% and 10.0 at% content, were obtained by butyl titanate (Ti(OC4H9)4) as a titanium source, zinc nitrate (Zn(NO3)2·6H2O) as zinc source and urea (H2 NCONH2) as nitrogen source, which was calcined at 600 °C on the glass substrate and Si substrate using sol–gel spin coating method. The structures, morphology and optical properties of various films were analyzed and studied by X ray diffract meter (XRD), ultraviolet-visible spectrophotometer (UV-Vis) and sca
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35

Roth, Stephan Volkher, Qing Chen, Calvin Jay Brett, Peter Müller-Buschbaum, and Daniel Soederberg. "Nanoparticle/Cellulose-Based Surface Enhanced Raman Scattering Hybrid Sensors." ECS Meeting Abstracts MA2024-01, no. 49 (2024): 2656. http://dx.doi.org/10.1149/ma2024-01492656mtgabs.

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Surface-Enhanced Raman Scattering (SERS) sensors are versatile biosensors for detecting very low concentrations of molecules. Their molecular and chemical sensitivity crucially depends on the tailoring of their nanostructure. These sensors rely on noble metal or oxide cluster layers, with their crystallinity and nanostructure carefully tuned to enable a maximum of plasmonic hot spots and enabling charge transfer. Typically, such sensors are in thin film geometry. In order to optimize their nanostructure and optical properties of the metal or oxide clusters, cellulose nanofibrils (CNFs) as temp
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36

Ferdinand, Yao Diby, Assale Fori Jean Paul, Alla Amani Jonas, and Digbehi Zeli Bruno. "Caracterisasion Geochimique des Deblais du Substratum de la Baie du Banco, Abidjan, Basse Cote d‘Ivoire." European Scientific Journal, ESJ 19, no. 36 (2023): 124. http://dx.doi.org/10.19044/esj.2023.v19n36p124.

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L’étude géochimique réalisée s’est éffectuée sur les déblais du substratum de la baie du Banco situé au Sud-est du bassin sédimentaire côtier de la Côte d’Ivoire. Cette étude vise à caractériser le substratum de la baie du Banco à partir des éléments chimiques ainsi que la détermination des paléoconditions des environnements de dépôt. La spectrométrie par fluorescence à rayon x (XRF) a permis de déterminer les éléments majeurs ainsi que des éléments traces présents dans les lutites noirâtres du substratum de la baie. Les éléments majeurs identifiés sont par ordre décroissant le Silicium (45,33
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37

Patterson, Joe P. "(Invited) Towards Single Particle Photocatalysis Measurements Using Electrochemical Liquid Electron Microscopy." ECS Meeting Abstracts MA2025-01, no. 39 (2025): 2042. https://doi.org/10.1149/ma2025-01392042mtgabs.

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Photocatalytic hydrogen generation at the single nanoparticle level has the potential to reveal unprecedented insights into the fundamental mechanisms of hydrogen production. This research aims to understand the photoelectrochemical and photocatalytic properties of individual SrTiO3 nanoparticles, and how these correlate to the bulk behavior, addressing a critical gap in our understanding of nanoscale catalysis. While most single nanoparticle studies are conducted in vacuum environments, these conditions do not reflect the actual environment of H2 production from water splitting. To overcome t
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38

Bae, Byeong-Soo, Won-Jong Lee, Kwang-Soo No, Dae-Sung Yoon, and Sung-Uk Kim. "Optical Properties of Sol-Gel (Pb,La)TiO3 Thin Films For Waveguide Application." MRS Proceedings 392 (1995). http://dx.doi.org/10.1557/proc-392-279.

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AbstractLead lanthanum titanate ((Pb1−x/100Lax)Ti1−x/400O3, x=10, 20, 28) sol-gel thin films were prepared on SiO2/Si and glass substrates using lanthanum nitrate as a La precursor. The effect of the processing conditions was investigated and the optical properties of the films were measured to obtain good films for waveguide applications. The perovskite crystalline phase is achieved regardless of the heating condition but the slower heating creates better quality films. La content in the film does not effect on the refractive index and transparency of the film.
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39

Maarof, Saleha, Karim Deraman, W. Nurulhuda W. Shamsuri, Bakar Ismail, and S. Asiah Mat. "Microstructure studies of strontium titanate thin films prepared by sol-gel dip coating method." Malaysian Journal of Fundamental and Applied Sciences 9, no. 3 (2014). http://dx.doi.org/10.11113/mjfas.v9n3.98.

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Strontium titanate (SrTiO3) thin films were deposited on corning glass by using dip coating method. Strontium nitrate, titanium (IV) isopropoxite, ethylene glycol and nitric acid have been use to prepared sol-gel of strontium titanate. Structural and its surface morphologies of the films were characterize by using X-ray Diffraction (XRD) and Atomic Force Microscopy (AFM), respectively. It have been determine that the films were strontium nitrate compound for as-prepared sample with lattice parameter; a = b = c = 0.78 nm and strontium titanate compound for annealing at 500 °C temperature with l
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40

McKay, Christopher P., E. L. O. Bakes, Hiroshi Imanaka, Bishun N. Khare, Dale P. Cruikshank, and Edward T. Arakawa. "Analysis of the Time-Dependent Chemical Evolution of Titan Haze Tholin." November 1, 2002. https://doi.org/10.1006/icar.2002.6899.

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Haze particles exert a significant influence over the thermodynamics and radiation absorption properties of the Titan haze, as well as its complex organic chemistry. Characterization of both the molecular and the submicrometer components of the haze is therefore vital for understanding the global properties of Titan. We have carried out a Titan tholin synthesis experiment and measured the time variation of the infrared spectrum of the product as a thin film developed. Also, to examine the possibility of oxygen contamination, we compared the infrared spectrum of the tholin film with that of a t
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41

Wang, Zhuo, J. Huang, S. W. Wang, et al. "Dielectric Properties of Bi2Ti2O7 Thin Films With (111) Orientation." MRS Proceedings 592 (1999). http://dx.doi.org/10.1557/proc-592-135.

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ABSTRACTBismuth titanate thin films have been prepared on silicon by metalorganic decompositionMOD) technique with bismuth nitrate and titanium butoxide as source materials. The growth procedure of the Bi2Ti2O7 thin films is discussed in this paper. The surface morphology of the Bi2Ti2O7 film was investigated by using Electric Force Microscope (EFM), and the crystallization of the films was studied by x-ray diffraction (XRD). Bismuth titanate thin film prepared on (100) silicon substrate showed strong (111) orientation. Its dielectric properties and the current-voltage (I-V) characteristics we
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42

Chuang, Wen-Hsien, Thomas Luger, Rainer K. Fettig, and Reza Ghodssi. "Characterization of Mechanical Properties of Silicon Nitride Thin Films for Space Applications." MRS Proceedings 782 (2003). http://dx.doi.org/10.1557/proc-782-a5.21.

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ABSTRACTMechanical properties of micro-electro-mechanical systems (MEMS) materials at cryogenic temperatures are investigated to extend MEMS devices into space applications. A helium-cooled measurement setup mimicking the outer space environment is developed and installed inside a focused-ion-beam (FIB) system. T-shape, low-stress LPCVD silicon nitride cantilevers suspended on a silicon substrate are fabricated as the test structures using bulk micromachining technique. A lead-zirconate-titanate (PZT) translator and a silicon diode are utilized as an actuator and a temperature sensor in the me
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43

Kabulski, Adam, John Harman, Parviz Famouri, and Dimitris Korakakis. "Development of Aluminum Nitride/Platinum Stack Structures for an Enhanced Piezoelectric Response." MRS Proceedings 955 (2006). http://dx.doi.org/10.1557/proc-0955-i15-35.

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ABSTRACTAluminum nitride (AlN) films are being investigated for piezoelectric and high temperature applications, but the piezoelectric response is still much lower than that of more common piezoelectric materials such as lead zirconate titanate or zinc oxide. A method of maximizing the piezoelectric response of aluminum nitride has been explored by depositing stack structures composed of aluminum nitride and platinum. These stack structures were created by depositing a thin, ∼50nm, metal layer in between thicker, ∼150-350nm, layers of the piezoelectric film. Platinum was chosen as the metal in
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44

Strnad, Nicholas A., Daniel M. Potrepka, Brendan M. Hanrahan, et al. "Extending atomic layer deposition for use in next-generation piezoMEMS: Review and perspective." Journal of Vacuum Science & Technology A 41, no. 5 (2023). http://dx.doi.org/10.1116/6.0002431.

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The objective of this work is to describe the current state of the rapidly evolving field of 3D piezoelectric microelectromechanical systems (piezoMEMS), and where it needs to go to fully leverage the potential performance benefits offered by atomic layer deposition (ALD). We define 3D piezoMEMS as the application of piezoelectric ALD films to 3D, high aspect-ratio, mechanically pliable structures. Since there are so few existing reports of 3D piezoMEMS, a literature review of ALD films applied to conventional microelectromechanical system (MEMS) devices is given. ALD processes for piezoelectr
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45

Raptakis, Adam, Lefteris Gounaridis, Jörn P. Epping, et al. "Integrated heterodyne laser Doppler vibrometer based on stress-optic frequency shift in silicon nitride." PhotoniX 4, no. 1 (2023). http://dx.doi.org/10.1186/s43074-023-00105-4.

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AbstractWe demonstrate a compact heterodyne Laser Doppler Vibrometer (LDV) based on the realization of optical frequency shift in the silicon nitride photonic integration platform (TriPleX). We theoretically study, and experimentally evaluate two different photonic integrated optical frequency shifters (OFSs), utilizing serrodyne and single-sideband (SSB) modulation. Both OFSs employ stress-optic modulators (SOMs) based on the non-resonant piezoelectrical actuation of lead zirconate titanate (PZT) thin-films, deposited on top of the silicon nitride waveguides with a wafer-scale process. To imp
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46

Justice, J. L., O. M. Mukdadi, and D. Korakakis. "Surface Acoustic Wave Sensors Deposited on AlN Thin Films." MRS Proceedings 1202 (2009). http://dx.doi.org/10.1557/proc-1202-i09-08.

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AbstractOver the past few decades, there has been considerable research and advancement in surface acoustic wave (SAW) technology. At present, SAW devices have been highly successful as frequency band pass filters for the mobile telecommunications and electronics industries. In addition to their inherent frequency selectivity, SAW devices are also highly sensitive to surface perturbations. This sensitivity, along with a relative ease of manufacture, makes SAW devices ideally suited for many sensing applications including mass, pressure, temperature, and biosensors. In the area of biosensing, s
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47

Kosugi, M., R. Obata, K. Suzuki, et al. "Gate-tunable resistance drops related to local superconducting gaps in thin TaS2 layers on SrTiO3 substrates." APL Materials 11, no. 8 (2023). http://dx.doi.org/10.1063/5.0147818.

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Strontium titanate [SrTiO3 (STO)], a perovskite oxide with an extremely high gate-tunable dielectric constant (ε) due to quantum paraelectric phases, is attracting considerable attention for yielding various physical phenomena when two-dimensional (2D) layers are integrated. Superconductivity is such a typical phenomenon. However, the influence of the STO substrates on enhancing transition temperatures (Tc) for (atomically) thin 2D flakes attached to them has been rarely investigated. Here, we report gate-tunable and gradual four-terminal resistance drops with critical onset T (TCR) and scanni
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48

Kavitha, N., J. Manoj Dhivakar, N. P. G. Bhavani, Ramanujam Sarathi, and Stefan Kornhuber. "Understanding the impact of different nanofillers on electrical, thermal, and surface properties of corona‐aged silicone rubber nanocomposites." Polymer Composites, September 13, 2024. http://dx.doi.org/10.1002/pc.29065.

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AbstractIn the present work, the impact of corona aging on the dielectric, thermal, and surface properties of silicone rubber filled with different nanofillers such as alumina (Al2O3), aluminum trihydrate (ATH), boron nitride (BN), and titania (TiO2) are studied. The surface degradation of the silicone rubber nanocomposites after corona aging is evaluated through contact angle measurement, atomic force microscopy (AFM) studies, and by water droplet‐initiated corona inception voltage studies. Alumina filled silicone rubber shows less reduction in surface and hydrophobic properties after corona
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49

Gatea, Hamed A. "Effect of Substrate-induced Strains on Ferroelectric and Dielectric Properties of PZT Films Prepared by Sol-Gel Technique." Nanoscience & Nanotechnology-Asia 10 (July 15, 2020). http://dx.doi.org/10.2174/2210681210999200715105250.

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Background: Lead Zirconate Titanate (PZT) films were synthesized by sol gel technique. The growth of films on ITO, Si\SiO2\Ti\Au, Si\Au and Si\SiO2\Ti\Al substrates discussed. In this study, Zirconium nitrate, lead acetate, and Ti (IV) isoproxide used as raw materials. Besides, acetic acid used as a solvent and 2-methoxy ethanol used as a stabilizer for Ti structure. Along with this, PZT films have perovskite structure, thin-film perovskite structure with high dielectric properties and hysteresis loop have been investigated. Methods: The effects of the type’s substrate on dielectric properties
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50

Malyshev, Kushchevska, and Bruskova. "STATE, TRENDS, AND STRUCTURE OF THE WORLD NANO-POWDER MARKET." Visnyk Universytetu “Ukraina”, 2019. http://dx.doi.org/10.36994/2707-4110-2019-3-24-06.

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The purpose of this study is to provide a comprehensive analysis of the global nanopowder market. Materials and methods. The study used such research methods as system-logical method, method of statistical generalization, comparative and factor analysis. Research results. It is known that nanopowders are obtained by chemical, physical, physico-chemical and mechanical methods. One of the major problems in the production of nanopowders is the tendency of nanoparticles to form aggregates and agglomerates that complicate the production of compact materials. To overcome the forces of agglomeration,
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