Abstract:
:The presence of microcapacitors near percolatrion threshold determines dielectric permittivity of a material. Motivated by this concept, we focused our work by preferentially allocating functionalized reduced graphene oxide (FRGO) in hard segment (disperse phase) of Thermoplastic polyurethane (TPU) by solution blending method and characterized. Morphological studies of TPU/FRGO nanocomposites established homogeneous dispersion of FRGO throughout the TPU matrix. It is noted that TPU/FRGO (1 phr) nanocomposites exhibit maximum increase in tensile strength (33%) and elongation at break (10%). Thermogravimetric analysis (TGA) showed maximum enhancement in onset of decomposition temperature (~6 °C) in 2 phr FRGO loaded TPU. Differential scanning calorimetry (DSC) analysis showed maximum reduction (~2 °C) in glass transition temperature (Tg) of soft segment of TPU followed by maximum improvements in melting temperature (~4 °C) as well as crystallization temperature (~22 °C) of hard segment compared to neat TPU. Further, a significantly high value of dielectric permittivity (401) is achieved in 1.5 phr loaded FRGO at 100 Hz due to the formation of significantly higher number of microcapacitors near the percolation threshold. It is anticipated that such thermally stable and mechanically strong high dielectric TPU/FRGO nanocomposites can find applications in the field of electronic devices.
journal_name
J Nanosci Nanotechnoljournal_title
Journal of nanoscience and nanotechnologyauthors
Manna R,Kumar Srivastava S,Mittal Vdoi
10.1166/jnn.2021.19468subject
Has Abstractpub_date
2021-11-01 00:00:00pages
5569-5582issue
11eissn
1533-4880issn
1533-4899journal_volume
21pub_type
杂志文章相关文献
文献大全abstract::Vanadium doped lanthanum bismuthate nanorods with vanadium ratio of 1%, 3%, 5% and 10 wt.% were fabricated through the hydrothermal method using sodium orthovanadate as vanadium source. Vanadium doped lanthanum bismuthate nanorod products were analyzed by scanning electron microscopy, X-ray diffraction pattern and dif...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19312
更新日期:2021-10-01 00:00:00
abstract::Laser assisted synthesis of silicon nanowires (SiNWs) was successfully achieved through the use of gold and nickel as catalysts. The diameter of the resulting SiNWs was found to be dependent on that of the catalyst in the case of gold catalyst. The gold catalysed silicon nanowires were unevenly curved and branched owi...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19448
更新日期:2021-10-01 00:00:00
abstract::Ultraviolet (UV) detector based on β-Ga₂O₃/p-GaN was fabricated in this paper. The growth process involved deposition of amorphous Ga₂O₃ layer by means of magnetron sputtering and conversion of β-Ga₂O₃. The obtained detector displays excellent UV sensing properties which covers Ultraviolet A(UVA)/Ultraviolet C(UVC) re...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19443
更新日期:2021-10-01 00:00:00
abstract::A novel method for in situ synthesis of Fe, N, Co tri-TiO₂ (DT) loading on MCM-41 composite photocatalyst was proposed. Fe, N, Co tri-TiO₂@MCM-41 (DTM) with adsorption-degradation synergy was prepared by adjusting tetrabutyl titanate (TBOT) concentrations, the alcohol-water ratio in the atmosphere of the reaction cham...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19363
更新日期:2021-10-01 00:00:00
abstract::Background: Titanium dioxide (TiO₂), consisting of nanoparticles and sub-microparticles, were widely used as food additive and consumed by people every day, which has aroused a public safety concern. Some studies showed TiO₂ can be absorbed by intestine and then distributed to different tissues after oral intake, whic...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19351
更新日期:2021-10-01 00:00:00
abstract::The objective of this study is to evaluate the catalytic performance of pellet-type Ru/γ-Al₂O₃ as a catalyst during liquid-phase hydrogenation of the aromatic hydrocarbon. The Ru/γ-Al₂O₃ catalyst was prepared using a wet impregnation method. After adding a binder to Ru/γ-Al₂O₃, a pellet-type catalyst was obtained thro...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19188
更新日期:2021-07-01 00:00:00
abstract::Titanium tetrachloride (TiCl₄) as an alternative coagulant to remove organic matters and nutrients from the effluent of the secondary wastewater treatment was evaluated by comparison of removal efficiency of total phosphorous to Al- and Fe-based coagulants. Also, the surface characteristics, elemental contents, and cr...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19181
更新日期:2021-07-01 00:00:00
abstract::In the present work, Ga₂O₃ nanofibers were successfully synthesized by electrospinning a solution of polyvinylpyrrolidone (PVP) and gallium nitrate, followed by temperature-controlled calcination treatment of the as-spun PVP and gallium nitrate composite nanofibers. The crystallinity and crystallite size of the Ga₂O₃ ...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19247
更新日期:2021-07-01 00:00:00
abstract::In this study, the physicochemical properties of modified biochar using different methods, such as physical (CO₂, steam) and chemical (KOH and H₃PO₄) methods, were estimated by X-ray diffraction, N₂ adsorption-desorption, field-emission scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, a...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19185
更新日期:2021-07-01 00:00:00
abstract::In this study, two blue fluorescence materials using phenylanthracene-substituted fluorene derivatives were synthesized and characterized for organic light-emitting diodes (OLEDs). To study their electroluminescent properties, OLED devices were fabricated using these two materials as emissive layer (EML). A device usi...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19231
更新日期:2021-07-01 00:00:00
abstract::In this study, we investigated the characteristics of high-content steel briquettes produced using various nanoscale solid binders and steel byproducts (SS, SCS, SLD, and BSD). The average particle size was 0.171 nm for S5, 0.065 nm for S1, 0.058 nm for S4, and 0.040 nm for S2 and S3. The SEM-EDS analysis of the solid...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19193
更新日期:2021-07-01 00:00:00
abstract::Perovskite solar cells have been attracting extensive attention because of their superior photovoltaic performances and lower costs as compared to those of prevailing photovoltaic technologies. There are four main interfaces in perovskite solar cells: flourine-doped tin oxide/electron transport layer, electron transpo...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19239
更新日期:2021-07-01 00:00:00
abstract::In this study, plasma electrolytic oxidation (PEO) on Ti-xNb-2Ag-2Pt alloys for nano- and micro-pore formation in electrolyte with Ca and P ions for dental implant use was studied using various experimental equipment. The Ti-xNb-2Ag-2Pt alloys were fabricated using a vacuum arc melting furnace, and micro-pores were cr...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19163
更新日期:2021-07-01 00:00:00
abstract::In this study, we demonstrate a carbon-based fabric Joule heater with and without a graphene oxide (GO) thin coating. The electrothermal performance of the carbon fabric used in the Joule heater was obtained using an infrared camera and by conducting electrical measurements. The outer GO could control the electrotherm...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19214
更新日期:2021-07-01 00:00:00
abstract::As an eco-friendly alternative fuel material, ammonium dinitramide (ADN, NH₄N(NO₂)₂) is safe and stable at room temperature; however, it requires high purity for practical applications. A small amount of impurities can retard the catalytic decomposition of the monopropellant in the thruster, lower the specific impulse...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19436
更新日期:2021-08-01 00:00:00
abstract::Although being the optical lithography, the extreme ultraviolet (EUV) lithography with 13.5-nm wavelength is very different from the deep ultraviolet (DUV) lithography with 193-nm wavelength. Hence, the understanding of the complex detailed EUV mechanisms to cause a chemical reaction in chemically amplified resists (C...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19412
更新日期:2021-08-01 00:00:00
abstract::In this study, we demonstrated the defect-selective etching and epitaxy technique for defect reduction of a heteroepitaxial chemical vapor deposition (CVD) diamond substrate. First, an 8 nm layer of nickel was deposited on the diamond surface using an e-beam evaporator. Then, defect-selective etching was conducted thr...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19413
更新日期:2021-08-01 00:00:00
abstract::Ge single-junction solar cell structures are grown on micro-patterned Ge substrates using lowpressure metalorganic chemical vapor deposition. 300 nm high micro-rod arrays are formed on the p-Ge substrates using photolithography and dry etching techniques. The micro-rod arrays are designed with rod diameter varying fro...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19406
更新日期:2021-08-01 00:00:00
abstract::In this study, for two cases of monolithic 3-dimensional integrated circuit (M3DIC) consisting of vertically stacked feedback field-effect transistors (FBFETs), the variation of electrical characteristics of the FBFET was presented in terms of electrical coupling by using technology computer aided design (TCAD) simula...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19387
更新日期:2021-08-01 00:00:00
abstract::A capacitorless one-transistor dynamic random-access memory cell with a polysilicon body (poly-Si 1T-DRAM) has a cost-effective fabrication process and allows a three-dimensional stacked architecture that increases the integration density of memory cells. Also, since this device uses grain boundaries (GBs) as a storag...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19389
更新日期:2021-08-01 00:00:00
abstract::Zirconia dental implants require excellent biocompatibility and high bonding strength. In this study, we attempted to fabricate biocompatible zirconia ceramics through surface modification by hydroxyapatite (HA) slurry coating. A hydroxyapatite slurry for spin coating was prepared using two sizes of hydroxyapatite par...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19374
更新日期:2021-08-01 00:00:00
abstract::YBaCuO superconductive thick film wires were fabricated by employing a melt process with a peak temperature of 1100 °C. Transition temperature and peak critical current density of these YBaCuO superconductive thick film wires were 90 K and 3.5 × 10⁴ A/cm², respectively. Their magnetic lev-itation force measured at a t...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19275
更新日期:2021-09-01 00:00:00
abstract::In this study, changes in the microstructure, mechanical properties, and electrical conductivity of cast and extruded Al-Zn-Cu-Mg based alloys with the addition of Li (0, 0.5 and 1.0 wt.%) were investigated. The Al-Zn-Cu-Mg-xLi alloys were cast and homogenized at 570 °C for 4 hours. The billets were hot extruded into ...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19268
更新日期:2021-09-01 00:00:00
abstract::Birnessite-MnO₂ nanoflakes were synthesized via an aqueous oxidation method at 90 °C using Mn(CH₃COO)₂, NaOH, and KMnO₄. The samples' morphology, crystalline structure, and optical property were determined by field emission scanning electron microscopy, X-ray powder diffraction and UV-Vis spectrophotometry. The birnes...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19330
更新日期:2021-09-01 00:00:00
abstract::Air pollution is a big concern as it causes harm to human health as well as environment. NO₂ can cause several respiratory diseases even in low concentration and therefore an efficient sensor for detecting NO₂ at room temperature has become one of the priorities of the scientific community. Although two dimensional (2...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19278
更新日期:2021-09-01 00:00:00
abstract::Selective photocatalysis is a very promising direction to improve the activities of photocatalysts. Combining the technique of molecular imprinting (MIP) with heterogeneous photocatalysis can be an appealing approach to achieve our aim. Herein, using the MIP technique, the monoclinic MIP-BiVO₄ was successfully synthes...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19144
更新日期:2021-09-01 00:00:00
abstract::New green emitter is designed and synthesized by selecting anthracene having high photoluminescence quantum yield (PLQY) and diphenylamine side group substituted methyl and t-butyl group: N9,N10-bis(5-(tert-butyl)-2-methylphenyl)-N9,N10-bis(2,4-dimethylphenyl)anthracene-9,10-diamine (3Me-1Bu-TPADA). Photophysical, ele...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19300
更新日期:2021-09-01 00:00:00
abstract::Excess ultraviolet (UV) exposure accelerates skin inflammation, melanogenesis, wrinkle formation, photoaging, and carcinogenesis through oxidative stress and deoxyribonucleic acid damage. These deleterious effects to skin are closely associated with UV-induced reactive oxygen species (ROS) and reactive nitrogen specie...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19279
更新日期:2021-09-01 00:00:00
abstract::We firstly discover the enhanced catalytic activity of magnetic noble metal nanoparticles mediated by surface plasmon resonance. Under light irradiation with certain wavelength, the catalytic performance of magnetic noble metal nanoparticles shows changes with different degrees and directions that are associated with ...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19281
更新日期:2021-05-01 00:00:00
abstract::This study's objective is to analyze the effect of epidermal growth factor (EGF) nanoparticles on the healing of diabetic skin wounds and also, simultaneously, to investigate the mechanism of EGF nanoparticles to promote healing. In this manuscript, EGF nanoparticles were prepared, and also the drug loading rate of EG...
journal_title:Journal of nanoscience and nanotechnology
pub_type: 杂志文章
doi:10.1166/jnn.2021.19155
更新日期:2021-05-01 00:00:00