Magnetic properties of different CoFe₂O₄nanostructures: nanofibers versus nanoparticles

Variations of local piezoelectricity in multiferroic CoFe2O4–Pb(Zr0.3,Ti0.7)O3 composite nanofibers

“…The saturation magnetization of the NF is 28.51 emu/g, which is smaller than that of the pure CFO NF and NP, because the nucleation process of CFO is confined by the surrounded PZT. [7] The coercivity field of the NFs (467.17 Oe) is smaller than that of NPs (862.17 Oe), indicating a more sensitive magnetic reversal process. [7] This 1D artificial structure will help us to design more sensitive device.…”

“…[7] The coercivity field of the NFs (467.17 Oe) is smaller than that of NPs (862.17 Oe), indicating a more sensitive magnetic reversal process. [7] This 1D artificial structure will help us to design more sensitive device. …”

“…[4,5] Electrospinning is believed to be a versatile method for preparing 1D nanomaterial. [6,7] Multiferroic composite NFs can be achieved by electrospinning from a mixture of ferroelectric and ferromagnetic precursor solution, and subsequently annealed process. [5,8] The mixture of two phase ionic in precursor NFs, leads to a homogeneous mixture of ferroelectric and ferromagnetic nanocrystals.…”

Simultaneously enhancement of quantum efficiency and color purity by molecular design in star-shaped solution-processed blue emitters

“…Zou et al synthesized a series of starburst oligofluorenes using phenyl as the core with a maximum EQE of 6.8% and CE of 5.4 cd A À1 [8]. Subsequently, they fine-tuned the turn-on voltage of 3.6 V by introducing electron donor diphenylamine end-caps to raise the HOMO level although this may reduce the spectral stability [12]. Improved device performance was also reported in star-like branched polyfluorene [13,14].…”

Improved coercivity and considerable saturation magnetization of cobalt ferrite (CoFe2O4) nanoribbons synthesized by electrospinning

“…Recently, many groups have been committing to synthesize various one-dimensional (1D) CoFe 2 O 4 nanostructures (nanofibers, nanowires, nanotubes, and nanoribbons) through many approaches, such as anodized aluminum oxide template (AAO)-assisted sol-gel or electrodeposition [2,[7][8][9][10], electrospinning [1,[11][12][13][14][15][16], and so on [17,18]. Being different from nanoparticles and films, 1D nanostructures not only have unique geometrical dimensions being comparable to the key magnetic length such as exchange length or domain wall width [19], but also can be an ideal model to research the magnetic reversal, magnetic interaction, and magnetic domain configuration in low-dimensional magnetic materials [19,20].…”