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Journal articles on the topic 'Nanoparticles silicon'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Muaath J. Mahmoud and Bassam G. Rasheed. "Synthesis of Nano Silicon Using Lasers." International Journal of Nanoelectronics and Materials (IJNeaM) 17, no. 1 (2024): 28–34. http://dx.doi.org/10.58915/ijneam.v17i1.449.

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Two lasers of the same wavelength (1.06 μm) and various specifications were employed to synthesize silicon nanoparticles. The experimental data reveal the formation of stable silicon nanoparticles with different features such as UV-vis absorption, photoluminescence spectrum, Raman spectrum, Zeta potential, and SEM morphology. Theoretical simulations using COMSOL software were adopted to estimate the surface temperature distribution at the silicon surface and underneath. It is found that maximum temperatures of about (5700 K) and (4600 K) were generated when a Q-switched laser pulse of (10 ns)

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2

Argyropoulos, Dimitrios-Panagiotis, George Zardalidis, Panagiotis Giotakos, Maria Daletou, and Filippos Farmakis. "Study of the Role of Void and Residual Silicon Dioxide on the Electrochemical Performance of Silicon Nanoparticles Encapsulated by Graphene." Nanomaterials 11, no. 11 (2021): 2864. http://dx.doi.org/10.3390/nano11112864.

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Silicon nanoparticles are used to enhance the anode specific capacity for the lithium-ion cell technology. Due to the mechanical deficiencies of silicon during lithiation and delithiation, one of the many strategies that have been proposed consists of enwrapping the silicon nanoparticles with graphene and creating a void area between them so as to accommodate the large volume changes that occur in the silicon nanoparticle. This work aims to investigate the electrochemical performance and the associated kinetics of the hollow outer shell nanoparticles. To this end, we prepared hollow outer shel

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3

Devi, Geetha, Joefel Jessica C. Dumaran, and Dinesh Keloth Kaithari. "Nanoparticle Mediated Treatment of Dairy Wastewater." E3S Web of Conferences 463 (2023): 03015. http://dx.doi.org/10.1051/e3sconf/202346303015.

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Nanotechnology is one of the emerging areas of scientific interest with numerous applications. In this research, surface modified silicon dioxide nanoparticules have been developed from low molecular weight chitosan by dip-coating technique for the batch treatment of dairy wastewater. The processing parameters of wastewater pH, mixing duration, agitation speed and quantity of nanoparticles are varied, and the treatment efficiency was established by measuring the total dissolved solids (TDS), turbidity, chemical oxygen demand (COD), total suspended solids (TSS), and dissolved oxygen (DO). Dynam

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4

Gulomov, Jasurbek, and Rayimjon Aliev. "The Way of the Increasing Two Times the Efficiency of Silicon Solar Cell." Physics and Chemistry of Solid State 22, no. 4 (2021): 756–60. http://dx.doi.org/10.15330/pcss.22.4.756-760.

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Increase of the efficiency of the solar cells which are produced in industry, is important. Increase of efficiency of solar cells was identified, when nanoplasmonics phenomenon was formed in solar cell. So, in this article, influence of nanoparticles Pt, Au, Ag and Cu on properties of silicon based solar cell has been studied. When nanoparticle Pt was inclused in silicon based solar cell, its efficiency increased 2.31 times. Optimal radius of nanoparticule Pt was identified to be between 15-25 nm.

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Halim, Martin, Jung Sub Kim, Si Hieu Nguyen, Bup Ju Jeon, and Joong Kee Lee. "Preparation of Gold Nanoparticles Deposited Silicon Thin Film Electrode by Self-Assembly Method for the Employment of an Anode Material for Lithium Secondary Batteries." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 8222–27. http://dx.doi.org/10.1166/jnn.2015.11435.

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This work describes a self-assembly method of gold nanoparticles coating on the surface of silicon thin films for the anode material of lithium secondary batteries. The preparation of the silicon thin films was carried out by electron cyclotron resonance metal organic chemical vapor deposition (ECR-MOCVD) process. The obtained films were further coated with (3-aminopropyl)-trimethoxysilane (APTMS) which has a role to bind the oxygen functional groups on Si surface and the gold nanoparticles. The dispersed gold nanoparticles on the surface of silicon thin films could be prepared due to self-ass

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Dembelova, Tuyana, Badma Badmaev, Dagzama Makarova, Aleksandr Mashanov, and Undrakh Mishigdorzhiyn. "Rheological and Tribological Study of Polyethylsiloxane with SiO2 Nanoparticles Additive." Lubricants 11, no. 1 (2022): 9. http://dx.doi.org/10.3390/lubricants11010009.

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Nowadays, much attention is paid to the creation of high-performance lubricants with improved properties through the use of ultrafine nanopowders. The paper shows the results of studying the viscoelastic properties of samples of silicon dioxide nanoparticle suspensions based on polyethylsiloxane (silicone oil) by the acoustic resonance method. The method is based on a study of the additional coupling effect on the resonance characteristics of the piezoelectric resonator. The values of the shear modulus and the tangent of the mechanical loss angle were calculated. The interaction between polyme

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7

Kornilova A.V., Ikramova S.B., Musayeva D.U., Syuy A. V., and Timoshenko V. Yu. "Optical properties and photo-heating of aqueous suspensions of silicon-based nanocomposite particles with deposited gold." Optics and Spectroscopy 130, no. 4 (2022): 451. http://dx.doi.org/10.21883/eos.2022.04.53735.62-21.

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The optical properties of nanocomposite particles consisting of silicon cores about 100 nm in size with smaller gold nanoparticles deposited on their surface have been studied. An increase in the absorption of light in the near-infrared region of the spectrum for the obtained nanoparticles is observed in comparison with that for nanoparticles of pure silicon or gold. Experiments on measuring the temperature of aqueous suspensions showed significantly higher rates of photoheating of nanocomposite particles upon irradiation with laser radiation at a wavelength of 810 nm compared to the case of p

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8

Strobel, Claudia, Martin Förster, and Ingrid Hilger. "Biocompatibility of cerium dioxide and silicon dioxide nanoparticles with endothelial cells." Beilstein Journal of Nanotechnology 5 (October 17, 2014): 1795–807. http://dx.doi.org/10.3762/bjnano.5.190.

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Cerium dioxide (CeO2) and silicon dioxide (SiO2) nanoparticles are of widespread use in modern life. This means that human beings are markedly exposed to them in their everyday life. Once passing biological barriers, these nanoparticles are expected to interact with endothelial cells, leading to systemic alterations with distinct influences on human health. In the present study we observed the metabolic impact of differently sized CeO2 (8 nm; 35 nm) and SiO2 nanoparticles (117 nm; 315 nm) on immortalized human microvascular (HMEC-1) and primary macrovascular endothelial cells (HUVEC), with par

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9

Sviridov, Andrey, Svetlana Mazina, Anna Ostapenko, Alexander Nikolaev, and Victor Timoshenko. "Antibacterial Effect of Acoustic Cavitation Promoted by Mesoporous Silicon Nanoparticles." International Journal of Molecular Sciences 24, no. 2 (2023): 1065. http://dx.doi.org/10.3390/ijms24021065.

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As-prepared mesoporous silicon nanoparticles, which were synthesized by electrochemical etching of crystalline silicon wafers followed by high-energy milling in water, were explored as a sonosensitizer in aqueous media under irradiation with low-intensity ultrasound at 0.88 MHz. Due to the mixed oxide-hydride coating of the nanoparticles’ surfaces, they showed both acceptable colloidal stability and sonosensitization of the acoustic cavitation. The latter was directly measured and quantified as a cavitation energy index, i.e., time integral of the magnitude of ultrasound subharmonics. The inde

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10

ZHU, Y., and P. P. ONG. "THIN FILMS OF SILICON NANOPARTICLES EMBEDDED IN Al2O3 MATRICES." Surface Review and Letters 08, no. 05 (2001): 559–64. http://dx.doi.org/10.1142/s0218625x01001440.

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Silicon nanoparticles embedded in a host matrix of Al 2 O 3 thin film about 260 nm thick were prepared by using the pulsed laser deposition method. The laser target consisted of a small silicon wafer glued onto the surface of a circular Al 2 O 3 plate, which was set to rotate uniformly when laser-ablating. TEM and EDS results showed that the films consisted of silicon nanoparticles in the form of nanocrystals with diameters of less than 6 nm dispersed in the amorphous Al 2 O 3 matrices. Strong PL from the as-prepared and the annealed samples was observed. The SIMS depth profile of the silicon

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11

Hwang, Sung Won. "SiOx/C Composite Anode for Lithium-Ion Battery with Improved Performance Using Graphene Quantum Dots and Carbon Nanoparticles." Molecules 29, no. 11 (2024): 2578. http://dx.doi.org/10.3390/molecules29112578.

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In this study, a composite was manufactured by mixing graphene quantum dots, silicon oxide, and carbon nanoparticles, and the characteristics of the anode materials for secondary batteries were examined. To improve the capacity of the graphene quantum dot (GQD) anode material, the added silicon oxide content was varied among 0, 5, 10, 15, and 30 wt%, and carbon nanoparticles were added as a structural stabilizer to alleviate silicon oxide volume expansion. The physical properties of the prepared GQD/SiOx/C composite were investigated through XRD, SEM, EDS, and powder resistance analysis. Addit

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12

Ben Rabha, Mohamed, Ameny El Haj, Achref Mannai, Karim Choubani, Mohammed A. Almeshaal, and Wissem Dimassi. "Enhancement of Optoelectronic Properties of Multicrystalline Silicon Using Al-NPs and SiNx Layer." Crystals 15, no. 4 (2025): 381. https://doi.org/10.3390/cryst15040381.

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In this study, we investigated and compared the influence of alumina nanoparticles (Al-NPs) and silicon nitride (SiNx) layers individually deposited on multi-crystalline silicon (mc-Si) on mc-Si’s structural, optical, and optoelectronic characteristics to improve surface quality. Alumina nanoparticle-covered multi-crystalline silicon, immersion in HF/H2O2/HNO3, and porous silicon (PS) covered with a silicon nitride structure are key components in achieving high electronic quality in multi-crystalline silicon. Surface reflectivity decreased from 27% to a minimum value of 2% for alumina nanopart

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13

Rasoolpoor, M., R. Ansari, and MK Hassanzadeh-Aghdam. "Dynamic behavior of particulate metal matrix nanocomposite plates under low velocity impact." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 1 (2019): 180–95. http://dx.doi.org/10.1177/0954406219875781.

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The main purpose of this work is to investigate low velocity impact behavior of metal matrix nanocomposite plates reinforced with silicon carbide nanoscale particles. First, a micromechanical model is proposed to predict the effective mechanical properties of metal matrix nanocomposites. Two features of the nanocomposite microstructure affecting the elastic properties, including agglomerated state of silicon carbide nanoparticles and size factor, are taken into account in the micromechanical simulation. Then, finite element method is used to analyze the time histories of contact force and cent

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14

Rasmagin S.I. "Effect nanoparticles silicon carbide on the characteristics of solar cells based on lutetium diphthalocyanine." Optics and Spectroscopy 130, no. 12 (2022): 1618. http://dx.doi.org/10.21883/eos.2022.12.55251.3602-22.

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Composites nanoparticles silicon carbide with lutetium diphthalocyanine were created. The size and shape nanoparticles silicon carbide, as well as their phase composition, were determined by electron microscopy. The absorption spectra of nanoparticles silicon carbide, a solution of lutetium diphthalocyanine, and a composite nanoparticles silicon carbide with lutetium diphthalocyanine were measured. Raman scattering spectra were obtained for nanoparticles silicon carbide. A comparative analysis of the absorption spectra of various samples was carried out. The effect of lutetium diphthalocyanine

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15

Maharaj, Dave, and Bharat Bhushan. "Effect of spherical Au nanoparticles on nanofriction and wear reduction in dry and liquid environments." Beilstein Journal of Nanotechnology 3 (November 15, 2012): 759–72. http://dx.doi.org/10.3762/bjnano.3.85.

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Nano-object additives are used in tribological applications as well as in various applications in liquids requiring controlled manipulation and targeting. On the macroscale, nanoparticles in solids and liquids have been shown to reduce friction and wear. On the nanoscale, atomic force microscopy (AFM) studies have been performed in single- and multiple-nanoparticle contact, in dry environments, to characterize friction forces and wear. However, limited studies in submerged liquid environments have been performed and further studies are needed. In this paper, spherical Au nanoparticles were stu

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16

Kim, Ki-Hwan, Emmanuel Lefeveure, Marc Châtelet, and Costel-Sorin Cojocaru. "Porous Alumina Template based Versatile and Controllable Direct Synthesis of Silicon nanowires." MRS Proceedings 1439 (2012): 11–16. http://dx.doi.org/10.1557/opl.2012.940.

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ABSTRACTHighly densely packed, self-organized silicon nanowires with very narrow diameter distribution were synthesized within porous anodic alumina templates with electrodeposited catalytic metal nanoparticles. For successful catalytic metal nanoparticle deposition, electrochemical-, and chemical barrier layer thinning process was investigated following anodization process. Controlled pulsed electrodeposition process was carried out for a volume calibration of desired catalytic metal nanoparticle deposition inside nanopore arrays using different metal-ion containing electrolyte. Not only sing

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17

Lee, Seung-Eun, Hyung-Kyu Lim, and Sangheon Lee. "Ab Initio-Based Structural and Thermodynamic Aspects of the Electrochemical Lithiation of Silicon Nanoparticles." Catalysts 10, no. 1 (2019): 8. http://dx.doi.org/10.3390/catal10010008.

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We reported the theoretical understandings of the detailed structural and thermodynamic mechanism of the actual lithiation process of silicon nanoparticle systems based on atomistic simulation approaches. We found that the rearrangement of the Si bonding network is the key mechanism of the lithiation process, and that it is less frequently broken by lithiation in the smaller sizes of Si nanoparticles. The decreased lithiation ability of the Si nanoparticles results in the lithiation potential being significantly lower than that of crystalline silicon phases, which impedes the full usage of the

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18

Расмагин, С. И. "Влияние наночастиц карбида кремния на характеристики солнечных ячеек на основе дифталоцианина лютеция". Оптика и спектроскопия 130, № 12 (2022): 1893. http://dx.doi.org/10.21883/os.2022.12.54097.3602-22.

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Composites nanoparticles silicon carbide with lutetium diphthalocyanine were created. The size and shape nanoparticles silicon carbide, as well as their phase composition, were determined by electron microscopy. The absorption spectra of nanoparticles silicon carbide, a solution of lutetium diphthalocyanine, and a composite nanoparticles silicon carbide with lutetium diphthalocyanine were measured. Raman scattering spectra were obtained for nanoparticles silicon carbide. A comparative analysis of the absorption spectra of various samples was carried out. The effect of lutetium diphthalocyanine

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19

Zhang, Guoyan, Mei Chen, Jibin Zhang, Baofeng He, Huai Yang, and Bai Yang. "Effective increase in the refractive index of novel transparent silicone hybrid films by introduction of functionalized silicon nanoparticles." RSC Advances 5, no. 76 (2015): 62128–33. http://dx.doi.org/10.1039/c5ra09668e.

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20

Hasanzadeh Kafshgari, M., B. Delalat, F. J. Harding, et al. "Antibacterial properties of nitric oxide-releasing porous silicon nanoparticles." Journal of Materials Chemistry B 4, no. 11 (2016): 2051–58. http://dx.doi.org/10.1039/c5tb02551f.

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In this study, the antibacterial efficacy of NO-releasing porous silicon nanoparticles (pSiNPs) is reported. NO-releasing pSiNPs were producedviathe conjugation ofS-nitrosothiol (SNO) andS-nitrosoglutathione (GSNO) donors to the nanoparticle surfaces.

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21

Корнилова, А. В., С. Б. Икрамова, Д. У. Мусаева, А. В. Сюй та В. Ю. Тимошенко. "Оптические свойства и фоторазогрев водных суспензий нанокомпозитных частиц на основе кремния с осажденным золотом". Оптика и спектроскопия 130, № 4 (2022): 569. http://dx.doi.org/10.21883/os.2022.04.52275.62-21.

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The optical properties of nanocomposite particles consisting of silicon cores about 100 nm in size with smaller gold nanoparticles deposited on their surface have been studied. An increase in the absorption of light in the near-infrared region of the spectrum for the obtained nanoparticles is observed in comparison with that for nanoparticles of pure silicon or gold. Experiments on measuring the temperature of aqueous suspensions showed significantly higher rates of photoheating of nanocomposite particles upon irradiation with laser radiation at a wavelength of 810 nm compared to the case of p

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22

Pilehroudi, Alireza, Javad Javidan, and Hamid Heidarzadeh. "Absorption improvement of an ultra-thin silicon solar cell using cubic and disk-shape nanoclusters." World Journal of Environmental Research 14, no. 2 (2024): 101–10. https://doi.org/10.18844/wjer.v14i2.9586.

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The increasing demand for highly efficient and cost-effective solar cells has driven advancements in ultra-thin solar technologies, addressing critical challenges in renewable energy. This study focuses on harnessing surface plasmon-induced electric fields to design an ultra-thin silicon-based solar cell with enhanced performance. A key innovation lies in integrating clustered nanoparticles with cubic and disk geometries across a range of sizes to improve light absorption and photocurrent generation. Initially, a baseline solar cell without nanoparticles was modeled, achieving a photocurrent o

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23

Manchanda, Priyanka, Pankaj Kumar, Balamurugan Balasubramanian, et al. "Magnetic Silicon Nanoparticles." IEEE Transactions on Magnetics 50, no. 11 (2014): 1–4. http://dx.doi.org/10.1109/tmag.2014.2325792.

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Yonezawa, Tetsu, Yoshinori Yamanoi, and Hiroshi Nishihara. "Cross-Sectional STEM Observation of Nanoparticle-Attached Silicon Wafer: Specimen Prepared by Focused Ion-Beam." Journal of Nanoscience and Nanotechnology 8, no. 3 (2008): 1518–22. http://dx.doi.org/10.1166/jnn.2008.18220.

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A thermal hydrosilylation process could successfully immobilize 5-heptene-1-thiol-stabilized gold nanoparticles onto hydrogen-terminated silicon surfaces. In order to understand the immobilization structures, it is very important to observe the linkage between the nanoparticles and the substrate surface. For this purpose, a cross-sectional observation of gold nanoparticle-attached silicon substrate was carried out by using a high resolution scanning transmission electron microscopy (HR-STEM). The specimens were prepared by using a focused ion-beam (FIB) machine. According to the Ga ion-beam ir

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25

Aliev, Gazi N., Jamaree Amonkosolpan, and Daniel Wolverson. "Observation of oxygen dimers via energy transfer from silicon nanoparticles." Physical Chemistry Chemical Physics 18, no. 2 (2016): 690–93. http://dx.doi.org/10.1039/c5cp04192a.

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26

ullah, Asad, and Fazal E. Hilal. "Optimization of Shape, Size and Material of Plasmonic Nano Particles in Thin Film Solar Cell." International journal of Engineering Works 7, no. 11 (2020): 390–93. http://dx.doi.org/10.34259/ijew.20.711390393.

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In this study we present optimized shape, size and material of plasmonic nanoparticles in thin film solar cell. For this purpose, we chose silicon active layer solar cell, on the top of active layer another layer of silicon dioxide was used as antireflection coating. Thickness of ARC layer was kept 71nm. On the top of ARC layer metallic nanoparticles were placed. Parameters of NP’s such as shape, size and material were varied. Respective variations in the absorption of light in the active silicon layer were observed respectively. Absorption patterns were plotted against wavelength range of 400

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27

Zhang, Min, Junwen Wang, and Qiang Cheng. "Effect of Porous Silicon Nanoparticle Drug-Loading System on Ulcerative Colitis." Journal of Nanoscience and Nanotechnology 21, no. 2 (2021): 1118–26. http://dx.doi.org/10.1166/jnn.2021.18699.

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Ulcerative colitis (UC) is a non-specific intestinal inflammatory disease. UC occurred in developed countries in the past, but in the past 20 years, the incidence of UC in developing countries has also shown a clear upward trend. The hospitalization rate and surgical rate of UC have been high, and may lead to the occurrence of intestinal malignant tumors, which has greatly affected the quality of life and life expectancy of patients. Because of this, how to effectively treat UC has become a hotspot in modern gastrointestinal diseases. Due to the limitation of the dosage form of the drug and th

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Schierning, G., R. Theissmann, H. Wiggers, et al. "Microcrystalline silicon formation by silicon nanoparticles." Journal of Applied Physics 103, no. 8 (2008): 084305. http://dx.doi.org/10.1063/1.2903908.

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29

Konstantinova, Elizaveta A., Alexander S. Vorontsov, and Pavel A. Forsh. "Investigation of Photoelectron Properties of Polymer Films with Silicon Nanoparticles." Surfaces 2, no. 2 (2019): 387–94. http://dx.doi.org/10.3390/surfaces2020028.

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Hybrid samples consisting of polymer poly-3(hexylthiophene) (P3HT) and silicon nanoparticles were prepared. It was found that the obtained samples were polymer matrixes with conglomerates of silicon nanoparticles of different sizes (10–104 nm). It was found that, under illumination, the process of nonequilibrium charge carrier separation between the silicon nanoparticles and P3HT with subsequent localization of the hole in the polymer can be successfully detected using electron paramagnetic resonance (EPR) spectroscopy. It was established that the main type of paramagnetic centers in P3HT/sili

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30

Khan, Madihah, Alyxandra Thiessen, I. Teng Cheong, Sarah Milliken, and Jonathan G. C. Veinot. "Investigation of Silicon Nanoparticle-Polystyrene Hybrids." Alberta Academic Review 2, no. 2 (2019): 49–50. http://dx.doi.org/10.29173/aar60.

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Current LED lights are created with quantum dots made of metals like selenium, tellurium, and cadmium which can be toxic. Silicon is used as a non-toxic substance and is the second most abundant element in the earth's crust. When silicon is prepared at a nanometer size, unique luminesce optical properties emerge that can be tuned using sized surface chemistry. Therefore, silicon nanoparticles can be used as an alternative emitter for LED lights. To produce hydride-terminated silicon nanoparticles we must synthesize the particles. Hydrogen silsesquioxane (HSQ) is processed at 1100 °C for one ho

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Zhang, Xiaoyu, Kentaro Yamano, Ririko Hayashida, Hirotaka Sone, Manabu Tanaka, and Takayuki Watanabe. "Formation Mechanism of Amorphous Silicon Nanoparticles Synthesized by Induction Thermal Plasma." MATEC Web of Conferences 333 (2021): 03007. http://dx.doi.org/10.1051/matecconf/202133303007.

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This study focus on the synthesis of amorphous silicon nanoparticles and understanding the formation mechanism. Counter-flow quenching gases with different flow rates were injected from downstream of the torch to understand the effect of quenching gas on the formation of silicon nanoparticles. Transmission electron microscopy show that nanoparticles with spherical shape and agglomerates consist of smaller particles were synthesized. X-ray diffraction analysis is used to calculate the amorphization degree, which is defined as fraction of amorphous silicon in the silicon nanoparticles including

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Zhang, Xiaoyu, Kentaro Yamano, Ririko Hayashida, Hirotaka Sone, Manabu Tanaka, and Takayuki Watanabe. "Formation Mechanism of Amorphous Silicon Nanoparticles Synthesized by Induction Thermal Plasma." MATEC Web of Conferences 333 (2021): 03007. http://dx.doi.org/10.1051/matecconf/202133303007.

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This study focus on the synthesis of amorphous silicon nanoparticles and understanding the formation mechanism. Counter-flow quenching gases with different flow rates were injected from downstream of the torch to understand the effect of quenching gas on the formation of silicon nanoparticles. Transmission electron microscopy show that nanoparticles with spherical shape and agglomerates consist of smaller particles were synthesized. X-ray diffraction analysis is used to calculate the amorphization degree, which is defined as fraction of amorphous silicon in the silicon nanoparticles including

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Preimesberger, Juliane Irine, Francois L. E. Usseglio-Viretta, Ankit Verma, et al. "Silicon Nanoparticle Size and Electrode Mechanical Integrity in Lithium-Ion Batteries." ECS Meeting Abstracts MA2025-01, no. 3 (2025): 278. https://doi.org/10.1149/ma2025-013278mtgabs.

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Widespread adoption of electric vehicles is still limited as the incumbent anode material, graphite, is too low energy-density and too high cost to make electric vehicle batteries more affordable and longer range. Silicon anodes have the potential to solve these issues as silicon is earth-abundant and can provide much higher theoretical energy density than graphite. However, high content silicon anodes have not yet been commercialized because of silicon’s large volumetric expansion (~200-300%, compared to 10% for graphite) which causes electrode mechanical degradation, and silicon’s reactive s

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Raju, Rajarshi Roy, and Joachim Koetz. "Inner Rotation of Pickering Janus Emulsions." Nanomaterials 11, no. 12 (2021): 3312. http://dx.doi.org/10.3390/nano11123312.

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Janus droplets were prepared by vortex mixing of three non-mixable liquids, i.e., olive oil, silicone oil and water, in the presence of gold nanoparticles (AuNPs) in the aqueous phase and magnetite nanoparticles (MNPs) in the olive oil. The resulting Pickering emulsions were stabilized by a red-colored AuNP layer at the olive oil/water interface and MNPs at the oil/oil interface. The core–shell droplets can be stimulated by an external magnetic field. Surprisingly, an inner rotation of the silicon droplet is observed when MNPs are fixed at the inner silicon droplet interface. This is the first

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Qin, Wenzhen, Frederic Vautard, Per Askeland, Junrong Yu, and Lawrence Drzal. "Modifying the carbon fiber–epoxy matrix interphase with silicon dioxide nanoparticles." RSC Advances 5, no. 4 (2015): 2457–65. http://dx.doi.org/10.1039/c4ra11878b.

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Perez-Guzman, Manuel, Rebeca Ortega-Amaya, Yasuhiro Matsumoto, et al. "Growth and Self-Assembly of Silicon–Silicon Carbide Nanoparticles into Hybrid Worm-Like Nanostructures at the Silicon Wafer Surface." Nanomaterials 8, no. 11 (2018): 954. http://dx.doi.org/10.3390/nano8110954.

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This work describes the growth of silicon–silicon carbide nanoparticles (Si–SiC) and their self-assembly into worm-like 1D hybrid nanostructures at the interface of graphene oxide/silicon wafer (GO/Si) under Ar atmosphere at 1000 °C. Depending on GO film thickness, spread silicon nanoparticles apparently develop on GO layers, or GO-embedded Si–SiC nanoparticles self-assembled into some-micrometers-long worm-like nanowires. It was found that the nanoarrays show that carbon–silicon-based nanowires (CSNW) are standing on the Si wafer. It was assumed that Si nanoparticles originated from melted Si

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Hassan, Mu’ataz S., Ziad A. Taha, and Bassam G. Rasheed. "Synthesis and Modeling of Temperature Distribution For Nanoparticles Produced Using Nd:YAG Lasers." Journal of Nanotechnology 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/8560490.

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Nanosecond pulses of Nd:YAG laser were employed to produce silver and silicon nanoparticles by laser ablation process in liquid. Two Nd:YAG laser systems of 6 and 10 nanoseconds pulse duration with variable laser energy in the range 700–760 mJ were employed. Morphological investigation using AFM and TEM reveals the formation of silver and silicon nanoparticles with uniform size distribution. It is found that mean nanoparticles sizes of 50 and 70 nm for silver and silicon, respectively, are produced under similar laser parameters. Moreover, theoretical model was used to estimate the temperature

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Bělinová, Tereza, Iva Machová, David Beke, et al. "Immunomodulatory Potential of Differently-Terminated Ultra-Small Silicon Carbide Nanoparticles." Nanomaterials 10, no. 3 (2020): 573. http://dx.doi.org/10.3390/nano10030573.

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Ultra-small nanoparticles with sizes comparable to those of pores in the cellular membrane possess significant potential for application in the field of biomedicine. Silicon carbide ultra-small nanoparticles with varying surface termination were tested for the biological system represented by different human cells (using a human osteoblastic cell line as the reference system and a monocyte/macrophage cell line as immune cells). The three tested nanoparticle surface terminations resulted in the observation of different effects on cell metabolic activity. These effects were mostly noticeable in

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Moshkriz, Ali, Zahra Shahroodi, and Reza Darvishi. "Fabrication of novel strain sensors from green TPV nanocomposites based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/silicone rubber/silicon-modified graphene oxide." RSC Advances 13, no. 26 (2023): 17818–33. http://dx.doi.org/10.1039/d3ra02940a.

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This study demonstrates the improved mechanical and electrical properties of PHBV TPV by adding silicone rubber/silicon-modified graphene oxide nanoparticles. Excellent stretchability, sensitivity, and repeatability is exhibited, ideal for biomedical strain sensors.

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Abdulah, Amri, Budi Kristiawan, Wibawa Endra Juwana, Sukarman, Khoirudin, and Agung Tri Wijayanta. "Chemical Composition and Particle Size Analysis with SEM, TEM, and XRD Techniques of Silicon Dioxide for (SiO₂+EG/DW) Nanofluids." Journal of Physics: Conference Series 2945, no. 1 (2025): 012016. https://doi.org/10.1088/1742-6596/2945/1/012016.

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Abstract Silica or silicon dioxide, with the chemical formula SiO2, has a structure with a repeating pattern of silicon and oxygen. Silicon dioxide is widely used as a nanofluid because it has the ability to absorb moisture, which is useful for reducing the impact of corrosion, in addition to its high thermal conductivity, which can improve the thermal performance of nanofluids. Determining factors for the success of nanofluids include the preparation of nanofluids, such as the chemical composition of the material and the particle size of the nanoparticles used, so that testing must be carried

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Talyzin, Igor V., and Vladimir M. Samsonov. "Outlooks for development of silicon nanoparticle memory cells." Modern Electronic Materials 5, no. 4 (2019): 159–64. http://dx.doi.org/10.3897/j.moem.5.4.51788.

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Phase change memory is based on changes in the optical, electrical or other properties of materials during phase transitions, e.g. an amorphous to crystalline transition. Currently existing and potential applications of this memory are primarily based on multicomponent alloys of metals and semiconductors. However single-component nanoparticles including Si ones are also of interest as promising nanosized memory cells. The potential for developing this type of memory cells is confirmed by the fact that the optical absorption index of bulk amorphous silicon is of the same order of magnitude as t

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Talyzin, Igor V., and Vladimir M. Samsonov. "Outlooks for development of silicon nanoparticle memory cells." Modern Electronic Materials 5, no. (4) (2019): 159–64. https://doi.org/10.3897/j.moem.5.4.51788.

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Phase change memory is based on changes in the optical, electrical or other properties of materials during phase transitions, e.g. an amorphous to crystalline transition. Currently existing and potential applications of this memory are primarily based on multicomponent alloys of metals and semiconductors. However single-component nanoparticles including Si ones are also of interest as promising nanosized memory cells. The potential for developing this type of memory cells is confirmed by the fact that the optical absorption index of bulk amorphous silicon is of the same order of magnitude as t

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Maghoul, Amir, Ali Rostami, Samiyeh Matloub, and Amin Pourrezaei. "Design Considerations Influencing Optical Response in Gold Spherical Nanoparticles." Journal of Nano Research 46 (March 2017): 1–11. http://dx.doi.org/10.4028/www.scientific.net/jnanor.46.1.

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In this article, the relations between extinction cross section and Gold nanoparticle's parameters such as dimensions have been investigated. In this work, the extinction cross section of the core-shell nanoparticles is analyzed by changing the shell material and its thickness. By this, the interesting results such as shifting resonant peak in optical response are obtained. Moreover, a new model of nanostructure is proposed in which the resonant peak of extinction cross section can be controlled by adding silicon nanoparticles and impurity in the shell. This method can be used for tuning of th

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Zabotnov, Stanislav V., Anastasiia V. Skobelkina, Fedor V. Kashaev, et al. "Pulsed Laser Ablation of Silicon Nanowires in Water and Ethanol." Solid State Phenomena 312 (November 2020): 200–205. http://dx.doi.org/10.4028/www.scientific.net/ssp.312.200.

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A novel two-stage technique to fabricate silicon nanoparticles is reported. At the first stage, silicon nanowire arrays are formed by metal-assisted chemical etching. At the second stage, the nanoparticles are produced by pulsed laser ablation of the silicon nanowire targets in water and ethanol. The fabricated particles have relatively small mean size in the range of 24 – 45 nm depending on the used buffer liquid. The ablation threshold of the silicon nanowire arrays is 2 – 11 times smaller than that for crystalline silicon targets. Owing to the achieved parameters, the proposed technique is

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Eswar, Kevin Alvin, F. S. Husairi, Azlinda Ab Aziz, Mohamad Rusop, and Saifollah Abdullah. "Photoluminescence Spectra of ZnO Thin Film Composed Nanoparticles on Silicon and Porous Silicon." Advanced Materials Research 832 (November 2013): 843–47. http://dx.doi.org/10.4028/www.scientific.net/amr.832.843.

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ZnO thin film was successfully deposited on different substrate by sol-gel spin coating. Zinc acetate dihydrates, diethanolamine and isopropyl were used as starting material, stabilizer and solvent respectively. Two different substrate used in this work are p-type silicon wafer and porous silicon. Porous silicon was prepared by electrochemical etching. In order to study the surface morphology, field emission scanning electron microscopy (FESEM) was employed. It is found that, ZnO thin film was composed by ZnO nanoparticles. The averages size ZnO nanoparticle is 23.5 nm on silicon and 17.76 nm

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Franz, Mathias, Romy Junghans, Paul Schmitt, Adriana Szeghalmi, and Stefan E. Schulz. "Wafer-level integration of self-aligned high aspect ratio silicon 3D structures using the MACE method with Au, Pd, Pt, Cu, and Ir." Beilstein Journal of Nanotechnology 11 (September 23, 2020): 1439–49. http://dx.doi.org/10.3762/bjnano.11.128.

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The wafer-level integration of high aspect ratio silicon nanostructures is an essential part of the fabrication of nanodevices. Metal-assisted chemical etching (MACE) is a promising low-cost and high-volume technique for the generation of vertically aligned silicon nanowires. Noble metal nanoparticles were used to locally etch the silicon substrate. This work demonstrates a bottom-up self-assembly approach for noble metal nanoparticle formation and the subsequent silicon wet etching. The macroscopic wafer patterning has been done by using a poly(methyl methacrylate) masking layer. Different me

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Hung, Khanh Nguyen, Phan Xuan Le, and Hsiao-Yi Lee. "Optical Efficiency Improvement of Chip-on-Board Design LEDs with TiO₂/Silicone Packaging Coating." Journal of Physics: Conference Series 2312, no. 1 (2022): 012029. http://dx.doi.org/10.1088/1742-6596/2312/1/012029.

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Abstract Since TiO2 nanoparticles and silicon composites include a strong scatter influence, they are well-known for improving scattered lighting in LED packets. To improve the optic quality of LEDs packaged with chip-on-board (COB), a thin layer made of high-concentration TiO2 and silicon glue is added to the primary packing layer. COB LEDs’ light extraction efficiency (LEE) rises up to 65% when the key encapsulation includes just silicone, according to the findings of experiments. As a coating of TiO2 and silicone is added, however, the increase in LEE is dependent on the TiO2 concentration.

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SINGH, D. P., and O. N. SRIVASTAVA. "BIOLOGICALLY PROGRAMMED SILICON NANOPARTICLES ASSEMBLY." International Journal of Nanoscience 04, no. 05n06 (2005): 1039–43. http://dx.doi.org/10.1142/s0219581x05004042.

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Silicon nanoparticles have been assembled to a large extent ≈ 600 nm using a DNA network template. Nanoparticles have been synthesized by thermal vapor deposition technique in 200 torr helium ambient. Heating effect of DNA mixed silicon nanoparticles has been observed and it was found that heating of the solution made the alignment to a very large extent, i.e., of several micrometers.

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Patil, Rohan, Manisha Phadatare, Jonas Örtegren, et al. "A Scalable Furnace Technique to Grow Silicon Nanoparticles for High-Performance Li-Ion Battery Anodes." ECS Meeting Abstracts MA2023-02, no. 2 (2023): 425. http://dx.doi.org/10.1149/ma2023-022425mtgabs.

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Lithium-ion battery (LIB) technology is one of the key technologies to lower the emission from fossil fuel while maintaining stable supply of energy to the society. One way to increase the capacity of LIBs is to add silicon to the graphite anode, since silicon can store much more lithium ions than graphite. Silicon does however expand and contract during lithiation and delithiation, leading to cracks which deteriorates the performance of the LIB anode. Mechanical cracking can be avoided by using sufficiently small silicon nanoparticles. Several high-performance schemes utilizing silicon nano m

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Bubenov, S. S., and S. G. Dorofeev. "Doped silicon nanoparticles. A review." Доклады Российской академии наук. Химия, науки о материалах 514, no. 1 (2024): 3–26. http://dx.doi.org/10.31857/s2686953524010011.

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Doped silicon nanoparticles combine availability and biocompatibility of the material with a wide variety of functional properties. In this review, the methods of fabrication of doped silicon nanoparticles are discussed, the prevalent of those being chemical vapor deposition, annealing of substoichiometric silicon compounds, and diffusion doping. The data are summarized for the attained impurity contents, in the important case of phosphorus it is shown that impurity, excessive with respect to bulk solubility, is electrically inactive. The patterns of intraparticle impurity distributions are pr

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