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Articles de revues sur le sujet « Nanoparticles Optical properties »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 29 janvier 2023

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1

Samaryk, Volodymyr, Sergiy Varvarenko, Nataliya Nosova, et al. "Optical properties of hydrogels filled with dispersed nanoparticles." Chemistry & Chemical Technology 11, no. 4 (2017): 449–53. http://dx.doi.org/10.23939/chcht11.04.449.

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Kulchin, Yurii N., Vladimir P. Dzyuba, and Valentin A. Milichko. "Dielectric Nano-Systems with Unique Optical Properties." Advanced Materials Research 677 (March 2013): 36–41. http://dx.doi.org/10.4028/www.scientific.net/amr.677.36.

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The study of optical properties of Al2O3, SiO2, TiO2, and ZnO nanoparticles in weak optical fields is presented. We found that some nanoparticles have unique optical nonlinearity: The values of portions to nanoparticle refractive index and absorption coefficient increase to maxima, and then decrease to zero when the radiation intensity changes from 1 to 500 W/cm2. We estimated electron energy structures of nanoparticles and experimentally determined that such nonlinearity is directly related to peculiarities of the energy structure. We obtained a good fitting of theoretical results to the expe

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3

Dawi, E. A., and A. Abdelkader. "Assembly and Optical Properties of Metal Nanoparticles." Solid State Phenomena 294 (July 2019): 3–10. http://dx.doi.org/10.4028/www.scientific.net/ssp.294.3.

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In this paper, the deposition and optical properties of charge-stabilized gold nanoparticles on silicon oxide substrates is studied, which have been derivatised with (aminopropyl) triemethoxysilane. Monodispersed charged-stabilized colloidal gold nanoparticles with diameters between 20-150 nm were prepared and their self-assembly and optical properties on silica substrates is studied. Atomic force microscopy (AFM) is employed to investigate the nanoparticle monolayers ex situ. Analysis of AFM images provide evidence that the formation of the colloidal nanoparticle monolayers is governed by ran

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Yang, X. C., W. J. Li, Z. H. Li, Y. N. Wei, and Wen Hai Huang. "Optical Properties of Ag Nanoparticle-Glass Composites." Key Engineering Materials 368-372 (February 2008): 1442–45. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1442.

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Silver nanoparticles doped glass composites were prepared by ion-exchange and subsequent thermal treatment processes. The optical properties of silver nanoparticle-glass composites were investigated by UV-VIS spectrophotometer and z-scan technique. The results show that the optimal Ag+/Na+ ion-exchange temperature range is between 310°C and 380°C, higher ion-exchange temperature or higher AgNO3 concentration in melt or longer ion-exchange period favors the introduction of more Ag+ ions into soda lime silicate glasses. The higher Ag+ concentration introduced into silicate glass, the larger the

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Rastar, Amir, Mohammad Esmail Yazdanshenas, Abosaced Rashidi, and Scycd Mansour Bidoki. "Theoretical Review of Optical Properties of Nanoparticles." Journal of Engineered Fibers and Fabrics 8, no. 2 (2013): 155892501300800. http://dx.doi.org/10.1177/155892501300800211.

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Nanoparticles are used in a variety of applications and their usage is growing vastly because of their superior characteristics, such as high specific area of contact, great mechanical properties, high electrical conductivity, and high optical scattering efficiency.. Among these numerous properties, optical properties play an important role in either the type of application in which nanoparticles may be utilized or the type of the nanoparticle which may be used for a desired outcome. Many textile products including fibers, fabrics, and textile composites benefit from these capacities of nanopa

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Hashemizadeh, Sakineh, and Majid Rashidi Huyeh. "Silver Nanocolloid: Synthesis, Optical and Thermo-Optical Properties." Advanced Materials Research 829 (November 2013): 670–74. http://dx.doi.org/10.4028/www.scientific.net/amr.829.670.

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Linked to Surface Plasmon Resonance (SPR) phenomena, optical and thermo-optical properties of metal-dielectric nanocomposite materials including noble metal nanoparticles dispersed in a dielectric host medium are worthily interested. Indeed these materials have been proposed for many applications such as photonics devices, bio sensors and even photo-thermal therapy. Colloidal silver nanoparticles were synthesized by reduction of silver nitrate using of ascorbic acid and citrate as stabilizer agent in a 30°C water bath. The transmission electron microscopy (TEM) micrograph image shows formation

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Krupa, M. M. "Magnetic and magneto-optical properties of Fe3O4 and NiFe2O4 nanoparticlesMagnetic and magneto-optical properties of Fe3O4 and NiFe2O4 nanoparticles." Functional materials 21, no. 1 (2014): 15–20. http://dx.doi.org/10.15407/fm21.01.015.

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Not Available, Not Available. "Optical properties of nanoparticles." Applied Physics B: Lasers and Optics 73, no. 4 (2001): 291. http://dx.doi.org/10.1007/s003400100725.

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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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Sun, Chunlei, Caiyan Qin, Han Zhai, Bin Zhang, and Xiaohu Wu. "Optical Properties of Plasma Dimer Nanoparticles for Solar Energy Absorption." Nanomaterials 11, no. 10 (2021): 2722. http://dx.doi.org/10.3390/nano11102722.

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Plasmonic nanofluids have excellent optical properties in solar energy absorption and have been widely studied in solar thermal conversion technology. The absorption of the visible region of solar energy by ordinary metal nanoparticles is usually limited to a narrow resonance band, so it is necessary to enhance the coupling effect of nanoparticles in the visible spectrum region to improve absorption efficiency. However, it is still a difficult task to improve solar energy absorption by adjusting the structure and performance of nanoparticles. In this paper, a plasma dimer Ag nanoparticle is pr

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Zhao, Hongyan, Xin Liu, Shoubao Zhang, et al. "Optical Properties and Detection Sensitivity of Noble Metal Nanoparticles." Nanoscience and Nanotechnology Letters 10, no. 3 (2018): 346–50. http://dx.doi.org/10.1166/nnl.2018.2635.

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By using the finite difference time domain method, the localized surface plasmon extinction spectrum of different sizes of spherical gold and silver nanoparticles were simulated and analyzed in external environments with various refractive indices. It was observed that the changes in the position of the resonance wavelength were linearly proportional to the external refractive index, while the sensitivity increased with nanoparticle size. The sensitivity of the spherical silver nanoparticles with a radius of 40 nm reached 122 nm/RIU. For the silver and gold nanoparticles of the same size, the

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Nychyporuk, Tetyana, Olivier Marty, Jean Marie Bluet, et al. "Formation, Morphology and Optical Properties of SiC Nanopowder." Materials Science Forum 527-529 (October 2006): 763–66. http://dx.doi.org/10.4028/www.scientific.net/msf.527-529.763.

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SiC nanopowder has been formed using an original technological approach based on grinding of bulk porous SiC nanostructures. The initial porous SiC nanostructures were obtained by anodization of n+-type 4H-SiC substrate in HF/Ethanol solution under UV illumination. Large single SiC nanoparticles (~ 30 nm in diameter) constituting the nanopowder have a porous structure which can be clearly visible. On the other hand, small single SiC nanoparticles (~ 4 nm in diameter) exhibit a clear crystalline structure. A broad and very intense luminescence band (400 – 900 nm) provided from the nanopowder co

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HAMMAD, TALAAT M., JAMIL K. SALEM, and ROGER G. HARRISON. "SYNTHESIS, CHARACTERIZATION, AND OPTICAL PROPERTIES OF Y-DOPED ZnO NANOPARTICLES." Nano 04, no. 04 (2009): 225–32. http://dx.doi.org/10.1142/s1793292009001691.

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Zinc oxide ( ZnO ) and yttrium-doped ZnO nanoparticles with particle size in the nanometer range have been successfully synthesized by the alkali precipitation method. The nanoparticle size and morphology have been investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM). The average particle size of Y-doped ZnO nanoparticles is about 17–29 nm. The absorption and photoluminescence (PL) spectra of the undoped and doped ZnO nanoparticles were also investigated. The optical band gap of ZnO nanoparticles can be tuned from 3.27 to 3.40

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Omura, Keita, Yoshitaka Kitamoto, Masahiko Hara, and Hiroyuki Wada. "Optical properties of copper naphthalocyanine nanoparticles prepared by laser ablation in liquid." Japanese Journal of Applied Physics 61, no. 4 (2022): 042001. http://dx.doi.org/10.35848/1347-4065/ac4e30.

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Abstract Copper naphthalocyanine nanoparticles were successfully prepared by laser ablation in liquid. Micron-size copper naphthalocyanine powders were used as the raw material in water and were irradiated with a laser beam (Nd:YAG, SHG) to obtain nanoparticles. Nanoparticles were examined by scanning electron microscopy, dynamic light scattering, a spectrophotometer, and Raman spectroscopy. Even in the case of irradiation at low laser fluence and for short irradiation times, nanoparticles were obtained owing to the comparatively low threshold of laser ablation. Laser irradiation changed the c

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15

Noory, Maha Hassan, and Zaid A. Hasan. "Influence the Addition (SiO2) Nanoparticles on Optical Properties for Methylene Blue Dye." NeuroQuantology 20, no. 1 (2022): 143–49. http://dx.doi.org/10.14704/nq.2022.20.1.nq22068.

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Thin films from methylene blue dye dopant with silicon oxide nanoparticles (semiconducting) with percentages (0, 0.01, 0.03 and 0.05%) with a thickness of 0.001 nm, had been prepared in this research. The effect of silicon oxide impurities in methylene blue dye on the optical properties (absorption, absorbance coefficient, transmittance, energy band-gap for the forbidden and permissible electronic transitions, refractive index, extinction coefficient, dielectric constant with its real and imaginary particles, and photoconductivity) was investigated by Spectrophotometer route in the visible ran

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Abdulridha, Ghufran Razzaq, and Zaid A. Hasan. "Study the Effect Doping (Al2O3) Nanoparticles on Optical Properties for PVA Polymer." NeuroQuantology 20, no. 3 (2022): 231–36. http://dx.doi.org/10.14704/nq.2022.20.3.nq22065.

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Polyvinyl alcohol polymer is a harmless substance of great importance to the medical and optical fields. In this paper, we saturated PVA with Al2O3 nanoparticles with different weights 0, 0.01, 0.03 and 0.05% at a temperature of 25oC and 1 atm pressure, The optical constants had been characterized by measuring the transmittance in the visible spectrum, the ultraviolet field, the absorption, and the rest of the optical properties such as the damping and refraction coefficient, in addition to the real and imaginary part of the dielectric constant and finally the optical conductivity of the sampl

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Carlberg, Miriam, Florent Pourcin, Olivier Margeat, et al. "Optical response of heterogeneous polymer layers containing silver nanostructures." Beilstein Journal of Nanotechnology 8 (May 16, 2017): 1065–72. http://dx.doi.org/10.3762/bjnano.8.108.

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This work is focused on the study of the optical properties of silver nanostructures embedded in a polymer host matrix. The introduction of silver nanostructures in polymer thin films is assumed to result in layers having adaptable optical properties. Thin film layers with inclusions of differently shaped nanoparticles, such as nanospheres and nanoprisms, and of different sizes, are optically characterized. The nanoparticles are produced by a simple chemical synthesis at room temperature in water. The plasmonic resonance peaks of the different colloidal solutions range from 390 to 1300 nm. The

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Moulin, F., M. Devel, and S. Picaud. "Optical properties of soot nanoparticles." Journal of Quantitative Spectroscopy and Radiative Transfer 109, no. 10 (2008): 1791–801. http://dx.doi.org/10.1016/j.jqsrt.2008.01.016.

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Kalenskii, A. V., A. A. Zvekov, A. P. Nikitin, and M. V. Anan’eva. "Optical Properties of Copper Nanoparticles." Russian Physics Journal 58, no. 8 (2015): 1098–104. http://dx.doi.org/10.1007/s11182-015-0618-2.

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González, A. L., and Cecilia Noguez. "Optical properties of silver nanoparticles." physica status solidi (c) 4, no. 11 (2007): 4118–26. http://dx.doi.org/10.1002/pssc.200675903.

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González, A. L., and Cecilia Noguez. "Optical properties of silver nanoparticles." physica status solidi (c) 4, no. 11 (2007): NA. http://dx.doi.org/10.1002/pssc.200790019.

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Sarmah, Smritimala, and A. Kumar. "Optical properties of SnO2 nanoparticles." Indian Journal of Physics 84, no. 9 (2010): 1211–21. http://dx.doi.org/10.1007/s12648-010-0109-9.

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23

Diguna, Lina Jaya, Aprilia Dyah Fitriani, Beta Riana Liasari, et al. "Optical and Photodetection Properties of ZnO Nanoparticles Recovered from Zn Dross." Crystals 11, no. 1 (2020): 6. http://dx.doi.org/10.3390/cryst11010006.

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In this study, we report the synthesis of ZnO nanoparticles from Zn dross via hydrometallurgical method by using acetic acid as a leaching agent. D205 dye molecules were then adsorbed onto Zn dross originated ZnO nanoparticle film. The optical absorption confirms the photosensitization of the synthesized ZnO nanoparticles with dye. The photoluminescence spectra reveal the excitonic- and defect-related emission of ZnO nanoparticles. Compared to ZnO nanoparticles only, the longer emission lifetime of ZnO nanoparticles with adsorbed dye indicates the transfer of photoexcited electrons from dye to

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Vodnik, Vesna V., Dušan K. Božanić, Nataša Bibić, Zoran V. Šaponjić, and Jovan M. Nedeljković. "Optical Properties of Shaped Silver Nanoparticles." Journal of Nanoscience and Nanotechnology 8, no. 7 (2008): 3511–15. http://dx.doi.org/10.1166/jnn.2008.144.

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The influence of shape and dielectric property of surrounding media on surface plasmon absorption band of silver nanoparticles was studied. Spherical silver nanoparticles (d = 5.6 nm) synthesized in water using NaBH4 as a reducing agent are transferred in non-polar solvent (chloroform) with phase-transfer reagent oleylamine. The absorption spectrum of oleylamine-capped silver nanoparticles dispersed in chloroform shows a strong surface plasmon resonance band that is 19 nm red-shifted compared to unmodified particles in water. The values for peak position and corresponding half widths are compa

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Pustovalov, V. K., and L. G. Astafyeva. "DEPENDENCE OF OPTICAL PROPERTIES OF TWO-LAYERED METAL-DIELECTRIC SPHERICAL NANOPARTICLES ON TEMPERATURE." Journal of Applied Spectroscopy 89, no. 4 (2022): 470–76. http://dx.doi.org/10.47612/0514-7506-2022-89-4-470-476.

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The dependences of the efficiency factors of radiation absorption by spherical hybrid nanoparticles of the core-shell system, respectively, with gold-quartz and quartz-gold materials with core radii r0 = 40, 50, 60, 70 nm and shell thicknesses Δr1 = 10, 20, 30 nm in the wavelength range of 300–3000 nm at temperatures of particles and surrounding quartz T = 300, 1173 K are theoretically calculated and studied. Essential change of radiation absorption by a nanoparticle is established with an increase of temperatures of nanoparticles and environment. The change of optical properties of nanopartic

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XIA, SI-HUA, JUN WANG, ZHANG-XIAN LU, and FEIYAN ZHANG. "BIREFRINGENCE AND MAGNETO-OPTICAL PROPERTIES IN OLEIC ACID COATED Fe3O4 NANOPARTICLES: APPLICATION FOR OPTICAL SWITCH." International Journal of Nanoscience 10, no. 03 (2011): 515–20. http://dx.doi.org/10.1142/s0219581x11008289.

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We report magneto-optical properties in a kerosene colloidal suspension of oleic acid coated Fe3O4 nanoparticles (~14 nm). The magnetic colloids (fluids) show birefringence under a magnetic field. Systematical studies of the on–off switch times upon application of the on–off magnetic field with varied experimental parameters indicate that the switch response time depends strongly on the strength of the magnetic field and the concentration of the magnetic nanoparticles in the fluid. The data can be explained in terms of the formation of magnetic nanoparticle chains under a magnetic field. The i

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Fomanyuk, S. S., G. Ya Kolbasov, T. A. Mirnaya, G. G. Yaremchuk, and I. A. Rusetskyi. "ELECTROSYNTHESIS OF COLLOID SOLUTIONS OF CdTe AND ZnSe NANOPARTICLES AND THEIR OPTICAL PROPERTIES." Chemical Problems 18, no. 2 (2020): 133–44. http://dx.doi.org/10.32737/2221-8688-2020-2-133-144.

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Joshi, Hira, and S. Annapoorni. "Tuning Optical Properties in Nanocomposites." International Journal of Nanoscience 19, no. 04 (2020): 1950026. http://dx.doi.org/10.1142/s0219581x19500261.

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Metal nanostructures and noble metal-based nanostructures, in particular, exhibit plasmonic resonance in the visible region. The resonance absorption can be tuned by varying the size of nanoparticle and the external matrix in which the plasmonic materials are embedded. Mie’s theory has been used to demonstrate the shift in the plasmonic resonance in gold nanoparticles embedded in different dielectric media. Two model systems, viz. Au–ZnO and Au–Al2O3, prepared by sputtering on quartz substrates were used to study the optical absorption. The plasmonic peaks were observed to be red shifted in Au

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Tanzid, Mehbuba, Ali Sobhani, Christopher J. DeSantis, et al. "Imaging through plasmonic nanoparticles." Proceedings of the National Academy of Sciences 113, no. 20 (2016): 5558–63. http://dx.doi.org/10.1073/pnas.1603536113.

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The optical properties of metallic nanoparticles with plasmon resonances have been studied extensively, typically by measuring the transmission of light, as a function of wavelength, through a nanoparticle suspension. One question that has not yet been addressed, however, is how an image is transmitted through such a suspension of absorber-scatterers, in other words, how the various spatial frequencies are attenuated as they pass through the nanoparticle host medium. Here, we examine how the optical properties of a suspension of plasmonic nanoparticles affect the transmitted image. We use two

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Knauer, Andrea, and J. Michael Koehler. "Screening of nanoparticle properties in microfluidic syntheses." Nanotechnology Reviews 3, no. 1 (2014): 5–26. http://dx.doi.org/10.1515/ntrev-2013-0018.

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AbstractThe possible diversity of nanoparticles is extremely high. This variability corresponds to a huge potential of possible functions in future materials and nanotechnical devices. Apart from rational designs, there is an urgent need for screening strategies for specific nanoparticle properties. Miniaturized screening techniques are challenged for efficient screening procedures. The review gives an overview on the possibilities of tuning and screening of nanoparticle properties and focuses on the application of microfluidic techniques for nanoparticle synthesis. Furthermore, the variation

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Daneshfar, Nader, and Majid Moradi. "An analytical solution for light scattering by metallic cylindrical nanoparticles with core–shell structure." Modern Physics Letters B 30, no. 05 (2016): 1650041. http://dx.doi.org/10.1142/s021798491650041x.

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In this paper, the optical scattering from cylindrical plasmonic nanoparticles with a core–shell structure, while the core is dielectric coated by a metallic shell such as gold, is investigated by using an analytical solution in the framework of Mie theory. A closed-form (CF) formalism that determines the optical properties of cylindrical nanoparticles based on the series expansions of Bessel functions for the Mie scattering coefficients is introduced and presented. By using this formulation, we will show the optical response and the surface plasmon resonance of hybrid metal-based nanoparticle

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Meng, Tao, Chun Mei Zhang, Mi Dan Li, Chun Liu, and Shan Shan Meng. "Optical Properties of Near-Infrared Cyanine Dye Molecules Adsorbed on Silver Nanoparticles." Advanced Materials Research 457-458 (January 2012): 1250–53. http://dx.doi.org/10.4028/www.scientific.net/amr.457-458.1250.

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The optical property of near-infrared cyanine dye adsorbed on silver nanopaticals has been studied by means of UV-Vis spectrophotometer. The adsorption of near-IR cyanine dye on silver nanopaticles was highly dependent on the concentration of silver nanoparticles. As a result, in the UV-Vis spectra, it was shown that the “red-shift”, as silver nanoparticles size, increased and the “blue-shift”, as concentration of silver nanoparticle increased as well. The adsorbed spectral peaks of near-infrared cyanine dye disappeared as concentration of silver nanoparticles increased.

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Sirinakis, George, Rezina Siddique, Christos Monokroussos, Michael A. Carpenter, and Alain E. Kaloyeros. "Microstructure and Optical Properties of Au–Y2O3-stabilized ZrO2 Nanocomposite Films." Journal of Materials Research 20, no. 9 (2005): 2516–22. http://dx.doi.org/10.1557/jmr.2005.0300.

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Nanocomposite films consisting of gold nanoparticles embedded in an yttria stabilized zirconia (YSZ) matrix were synthesized at room temperature by radio-frequency co-sputtering from YSZ and Au targets at a 5 mTorr working pressure. The films were subsequently annealed for 2 h in 1 atm argon, with the annealing temperature varied from 600 to 1000 °C in steps of 100 °C. The composition, microstructure, and optical properties of the films were characterized as a function of annealing temperature by Rutherford backscattering spectrometry, scanning electron microscopy, Auger electron spectroscopy,

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Kumar, Anuja S., Gayathri Madhu, Elza John, Shinoj Vengalathunadakal Kuttinarayanan, and Saritha K. Nair. "Optical and antimicrobial properties of silver nanoparticles synthesized via green route using honey." Green Processing and Synthesis 9, no. 1 (2020): 268–74. http://dx.doi.org/10.1515/gps-2020-0029.

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AbstractAmong the various green synthesis methods for nanoparticle synthesis, the honey-mediated green synthesis of nanoparticles is a fast, safe, biocompatible, and cost-effective method. In the present work, we demonstrate the sunlight-induced honey-mediated synthesis of silver nanoparticles and report the effect of light intensity, its color, and exposure time on the formation of nanoparticles. The visual inspection followed by UV-Vis spectral studies was performed to confirm the formation of silver nanoparticles. The HRTEM measurement confirms the formation of polydispersed silver particle

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Du, Zheren, Lianwei Chen, Tsung-Sheng Kao, Mengxue Wu, and Minghui Hong. "Improved optical limiting performance of laser-ablation-generated metal nanoparticles due to silica-microsphere-induced local field enhancement." Beilstein Journal of Nanotechnology 6 (May 22, 2015): 1199–204. http://dx.doi.org/10.3762/bjnano.6.122.

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For practical application, optical limiting materials must exhibit a fast response and a low threshold in order to be used for the protection of the human eye and electro-optical sensors against intense light. Many nanomaterials have been found to exhibit optical limiting properties. Laser ablation offers the possibility of fabricating nanoparticles from a wide range of target materials. For practical use of these materials, their optical limiting performance, including optical limiting threshold and the ability to efficiently attenuate high intensity light, needs to be improved. In this paper

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Compostella, Federica, Olimpia Pitirollo, Alessandro Silvestri, and Laura Polito. "Glyco-gold nanoparticles: synthesis and applications." Beilstein Journal of Organic Chemistry 13 (May 24, 2017): 1008–21. http://dx.doi.org/10.3762/bjoc.13.100.

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Glyco-gold nanoparticles combine in a single entity the peculiar properties of gold nanoparticles with the biological activity of carbohydrates. The result is an exciting nanosystem, able to mimic the natural multivalent presentation of saccharide moieties and to exploit the peculiar optical properties of the metallic core. In this review, we present recent advances on glyco-gold nanoparticle applications in different biological fields, highlighting the key parameters which inspire the glyco nanoparticle design.

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YU BAO-LONG, BU HONG-JIAN, WU XIAO-CHUN, et al. "NONLINEAR OPTICAL PROPERTIES OF In2O3 NANOPARTICLES." Acta Physica Sinica 48, no. 2 (1999): 320. http://dx.doi.org/10.7498/aps.48.320.

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Coşkun, Mustafa, Safi Altınöz, and Özlem Duyar Coşkun. "Optical properties of VO2 spherical nanoparticles." Photonics and Nanostructures - Fundamentals and Applications 49 (May 2022): 100993. http://dx.doi.org/10.1016/j.photonics.2022.100993.

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Rong-yao, Wang, Wu Xiao-chun, Wu Peng-fei, et al. "Optical properties of ZnO composite nanoparticles." Acta Physica Sinica (Overseas Edition) 7, no. 3 (1998): 203–8. http://dx.doi.org/10.1088/1004-423x/7/3/007.

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Kumbhakar, Pathik, Suprakas Sinha Ray, and Andey L. Stepanov. "Optical Properties of Nanoparticles and Nanocomposites." Journal of Nanomaterials 2014 (2014): 1–2. http://dx.doi.org/10.1155/2014/181365.

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Patel, B. K., S. Rath, S. N. Sarangi, and S. N. Sahu. "HgS nanoparticles: Structure and optical properties." Applied Physics A 86, no. 4 (2007): 447–50. http://dx.doi.org/10.1007/s00339-006-3812-9.

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Ge, Peng. "Study on Optical Properties of Carbon Nanoparticles." Applied Mechanics and Materials 440 (October 2013): 61–63. http://dx.doi.org/10.4028/www.scientific.net/amm.440.61.

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Carbon nanomaterials have generated a tremendous amount of attention in the scientific community. However, little or no attention has been paid to potential uses of carbon nanoparticles as optical properties of carbon nanoparticles in general. In the study reported herein, it shows the functions and properties of aqueous-suspended small carbon nanoparticles with different concentration and size.

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Maksimyak, P. P., C. Yu Zenkova, and V. M. Tkachuk. "Carbon Nanoparticles. Production, properties, perspectives of use." Фізика і хімія твердого тіла 21, no. 1 (2020): 13–18. http://dx.doi.org/10.15330/pcss.21.1.13-18.

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The paper is devoted to the study of the optical properties of carbon nanoparticles synthesized by the method developed during our experimental studies. The optimal conditions for the creation of carbon nanostructures with predetermined properties are defined. Nanoparticles of the size of about 100 nm were obtained, the maximum of absorption of which is localized at wavelengths in the violet-blue region of the spectrum, while the maximum of luminescence – in the green region of the spectrum. The assumption is made about the possibility of using the obtained particles for correlation diagnostic

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Abdulridha, Israa K., and Ban A. Naser. "Optical Properties of Malachite Green Organic Laser Dye Doped with PMMA Polymer and Cu Nanoparticles." NeuroQuantology 20, no. 3 (2022): 259–64. http://dx.doi.org/10.14704/nq.2022.20.3.nq22253.

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In this work, optical properties for a Malachite Green organic laser dye doped PMMA polymer and Cu nanoparticles were studied at concentrations (2×10-5,4×10-5,6×10-5 and 8×10-5) M in chloroform solvent. Absorption and transmission spectra of all samples has been recorded using UV-VIS spectrometer. When compared the samples of pure organic dye and dye doped PMMA polymer and with Cu nanoparticles, the results show that organic dye doped Cu nanoparticles have very high linear optical characteristics. This result showed that these organic dye doped with nanoparticles are very suitable for applicat

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Sakurai, Makoto, Ke Wei Liu, Romain Ceolato, and Masakazu Aono. "Optical Properties of ZnO Nanowires Decorated with Au Nanoparticles." Key Engineering Materials 547 (April 2013): 7–10. http://dx.doi.org/10.4028/www.scientific.net/kem.547.7.

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One of the key technologies in future optoelectronics is control of excitons in oxide materials by the coupling with plasmons on noble metal surfaces. Optical properties of ZnO nanowires decorated with Au nanoparticles were studied to understand fundamental mechanism of the coupling and to develop optoelectronic devices with new functionalities. Light intensity at the main peak position in the photoluminescence (PL) spectra of ZnO nanowires was enhanced with the coverage of Au nanoparticles. Lifetime of excitons excited optically decreased by the decoration of Au nanoparticles. Understanding o

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Aldosari, F. M., A. M. Azzeer, and A. M. Hassib. "Analyzing the Preparation and Properties of Silver Nanoparticles; A Photo-Acoustic Study." Applied Physics Research 10, no. 6 (2018): 29. http://dx.doi.org/10.5539/apr.v10n6p29.

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Metal nanoparticles have garnered recent attention due to their potential for use in various mechanical, electrical, chemical and optical applications. This study aimed to investigate the synthesis of silver nanoparticles using pulsed photo-acoustic (PA) spectroscopy techniques. The results indicated a linear relationship between absorbance and concentration. Additionally, stability of silver colloids was seen at room temperatures, with no aggregation. The nanoparticles were spherical and between 2-40 nm in diameter. Nanoparticle size and PA signal were inversely proportional. Furthermore, lac

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Abd-Al Hussein, Elham Talib, and Awham M. Hameed. "Studying some Optical Properties of Polyethylene Glycol Doped with Al- Nanoparticles." Materials Science Forum 1002 (July 2020): 104–13. http://dx.doi.org/10.4028/www.scientific.net/msf.1002.104.

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This research aims to improve some optical properties of polyethylene glycol (PEG) by adding different weight percentages of aluminium nanoparticles )0, 2, 4, 6 and 8) % and for achieving a new composite material with improved characteristics. nanocomposite thin films were prepared by solution casting method with different weight percentages of Al nanoparticles. The samples were characterized by X-ray diffraction (XRD), FTIR and UV-visible spectrophotometer. FTIR-spectra of (PEG-Al) nanocomposite show various special bands of bending for groups (C=O, C–O, C–H, C-N, C-I). Optical microscopy ima

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Chen, Qiu Ling, Wan Lin, Qiu Ling Chen, and Shuang Bao Wang. "Study on the Effect of Fe₃O₄ Nanoparticle Dopants on the Properties of Magneto Optical Glasses." Advanced Materials Research 213 (February 2011): 330–33. http://dx.doi.org/10.4028/www.scientific.net/amr.213.330.

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Fe3O4 nanoparticles doped magnetic-optical PbO-Bi2O3-B2O3 glasses were prepared and studied and the effects of Fe3O4 nanoparticle on the properties of magnetic-optical glass were analyzed. It is found that the doping of Fe3O4 nanoparticles into glasses increased the Verdet constant of magneto optical glass without evident degradation in glass transmittance. The formation of Fe3O4 nanoparticles was obtained through coprecipitation of Fe(II) and Fe(III) in alkaline media. The structure and properties of doped glasses were studied by X-ray diffraction (XRD), scanning electric microscope (SEM), UV

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Ross, Michael B., Jessie C. Ku, Martin G. Blaber, Chad A. Mirkin, and George C. Schatz. "Defect tolerance and the effect of structural inhomogeneity in plasmonic DNA-nanoparticle superlattices." Proceedings of the National Academy of Sciences 112, no. 33 (2015): 10292–97. http://dx.doi.org/10.1073/pnas.1513058112.

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Bottom-up assemblies of plasmonic nanoparticles exhibit unique optical effects such as tunable reflection, optical cavity modes, and tunable photonic resonances. Here, we compare detailed simulations with experiment to explore the effect of structural inhomogeneity on the optical response in DNA-gold nanoparticle superlattices. In particular, we explore the effect of background environment, nanoparticle polydispersity (>10%), and variation in nanoparticle placement (∼5%). At volume fractions less than 20% Au, the optical response is insensitive to particle size, defects, and inhomogeneity i

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Yaremchuk, Iryna, and Tetiana Bulavinets. "Study of plasmonic properties of copper monosulfide nanoparticles depending on their dielectric constant." Technology audit and production reserves 4, no. 3(60) (2021): 9–13. http://dx.doi.org/10.15587/2706-5448.2021.237269.

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The object of research is plasmonic properties copper of monosulfide nanoparticles. One of the most problematic areas is that there is still no unambiguous answer to which main copper monosulfide nanoparticles parameters have a decisive effect on their resonance absorption, scattering or electric field enhancement. It is necessary to study the plasmonic properties of copper monosulfide nanoparticles depending on their main parameter, namely the dielectric constant. The principle of dipole equivalence and Mee-Gans theory for the modeling of the optical nanoparticle characteristics is used. It i

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