Emerging assembly of ZnO-nanowires/graphene dispersed liquid crystal for switchable device modulation

Pal, Kaushik; Mohan, M. L. N. Madhu; Foley, M.; Ahmed, Waqar

doi:10.1016/j.orgel.2017.12.044

Cited by 35 publications

(9 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another process used in the fabrication of magnetic nanocomposite structures, as well as nanotubes in conjunction with templates is the so called sol-gel process. It consists of a wet-chemical technique for the fabrication of materials starting either from a chemical solution or colloidal particles to produce an integrated network [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Spin-Waves Excitations in Segmented Nanotubes Consisting of Ferromagnetic and Non-Magnetic Materials

Va¹

2020

Int J Nanoparticles Nanotech

View full text Add to dashboard Cite

In the present study, magnetization and dispersion relations of spin-waves propagating along a segmented nanotube constructed of atomic layers of ferromagnetic and non-magnetic materials are considered by use of the Green function method. Within the framework of random-phase approximation, the expression of Green functions for different spins of segmented nanotubes, which is modeled as having a hexagonal cross section are derived. The effects of the composition (p) and exchange couplings on spin-wave spectra and temperature dependence of magnetization are investigated in detail. It was found that small magnetization is observed in the system at small values of parameter p and exchange constants, and the critical temperature at which second-order phase transition occurs is low. When the obtained theoretical results compare with some other works, a very good agreement between them is observed.

show abstract

Section: Introductionmentioning

confidence: 99%

Spin-Waves Excitations in Segmented Nanotubes Consisting of Ferromagnetic and Non-Magnetic Materials

Va¹

2020

Int J Nanoparticles Nanotech

View full text Add to dashboard Cite

show abstract

“…As shown in previous reports, polymeric composites, comprising of highly stable polymer matrix and fillers with good electrical conductivity via a series of proper reaction methods, are successful to demonstrate obvious nonlinear conductive behaviors [ 5 , 6 , 7 , 8 , 9 , 10 ], which indicates the potential applying of polymeric composites for preventing the overvoltage of electronic devices [ 11 , 12 , 13 ]. For instance, White et al [ 14 , 15 ] demonstrated the preparation and characterization analysis of silver nanowire-polystyrene filler nanocomposites.…”

Section: Introductionmentioning

confidence: 91%

Nonlinear Conductive Characteristics of ZnO-Coated Graphene Nanoplatelets-Carbon Nanotubes/Epoxy Resin Composites

Yang

Wang

et al. 2020

Polymers

View full text Add to dashboard Cite

With the increasing threats arising from the electromagnetic environment, polymeric composites which could exhibit nonlinear conductive characteristics are highly required in the protection of electronic devices against overvoltage. In this research, ZnO nanoparticles are coated onto graphene nanoplatelets (GNPs)-carbon nanotubes (CNTs) hybrid, and then it is embedded in epoxy resin (ER) matrix via solution blending. Based on the characterization results, CNTs are well dispersed across the GNPs which prevent the restacking of GNPs and CNTs. At the same time, ZnO nanoparticles are well-bonded to the surfaces of GNPs-CNTs hybrid. During repeated conductive characteristic measurements, GNPs-CNTs-ZnO/ER composite is able to demonstrate distinctly reversible nonlinear conductive behavior, with high nonlinear coefficients. Especially, the filler content in GNPs-CNTs-ZnO/ER composite is only 12.5% of that in GNPs-ZnO/ER composite reported in our previous work. Moreover, it is shown that the nonlinear coefficients and switching threshold voltage can be modified by controlling the weight ratios of GNPs, CNTs, and ZnO. Finally, the samples with 1:1 weight ratio of GO to MWCNTs (A-6.67 and A-10) exhibit the best reversible nonlinear conductive behavior.

show abstract

“…CNCs form chiral nematic phases, but other materials have the ability to form this mesophase. Among the materials recently researched to form chiral * E-mail: cfcastrogu@conacyt.mx nematic phase there are rod-like nanomaterials (they possess the same morphology as CNCs), such as CdS nanowires [6], graphene-ZnO nanocomposites [7], ZnO nanowires with graphene [8], and silicon composites with silver nanoparticles [9]. Cellulose nanocrystals are usually obtained using sulfuric acid.…”

Section: Introductionmentioning

confidence: 99%

Self-ordered cellulose nanocrystals and microscopic investigations

Castro-Guerrero

Morales‐Cepeda

Díaz-Guillén

et al. 2020

Materials Science-Poland

View full text Add to dashboard Cite

Cellulose nanocrystals were extracted from cotton. The cellulose nanocrystals made a self-assembly structure when dried under slow conditions, as it was revealed by the characterization made to the material. The AFM images of the nanocrystals showed that they had a changing local orientation, pointing in a preferred direction that underwent a periodic change. This periodic change resembles the orientation of a chiral nematic phase. The TEM images showed that the nanocrystals had a rod-like appearance with average length size of 98.5 nm and a diameter of 4.7 nm. The TEM characterization showed the nanocrystals with more details than AFM. In this paper, the self-assembling of CNC was observed by AFM, and further investigations were done by TEM, deconvoluting the process of CNC nanorods aggregation.

show abstract

Emerging assembly of ZnO-nanowires/graphene dispersed liquid crystal for switchable device modulation

Cited by 35 publications

References 53 publications

Spin-Waves Excitations in Segmented Nanotubes Consisting of Ferromagnetic and Non-Magnetic Materials

Spin-Waves Excitations in Segmented Nanotubes Consisting of Ferromagnetic and Non-Magnetic Materials

Nonlinear Conductive Characteristics of ZnO-Coated Graphene Nanoplatelets-Carbon Nanotubes/Epoxy Resin Composites

Self-ordered cellulose nanocrystals and microscopic investigations

Contact Info

Product

Resources

About