Magnetic and Microstructural Studies on PVA/Co Nanocomposite Prepared by Ion Beam Sputtering Technique

Sachdev, Preeti; Banerjee, M.; Mukherjee, G. S.

doi:10.14429/dsj.64.7332

Cited by 16 publications

(14 citation statements)

References 23 publications

(42 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent past we developed nanocomposite systems like PVA/Co, PVA/Co/C, and PVA/Co/Ag by sputtering nanoparticles of cobalt, carbon, and silver on PVA film where we found XRD peak in all such PVA/Co, PVA/Co/C, and PVA/Co/Ag systems in the same position at 2 θ = 19.81° as in the present pristine PVA film. It is worthy to note that the peak at 2 θ = 19.81° has maintained its stubborn presence and identity in each of such nanocomposite as PVA / Co, PVA / Co / C, and PVA / Co / Ag systems irrespective of sputtering pattern and sequence .…”

Section: Resultssupporting

confidence: 52%

See 1 more Smart Citation

Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film

Banerjee

Jain²,

Mukherjee

2018

Polymer Composites

Self Cite

View full text Add to dashboard Cite

Films of pure polyvinyl alcohol (PVA) and its manganese chloride filled polymer composite film (MPVA) were prepared and their optical properties were evaluated. XRD, UV-vis, and FTIR analyses reveal that there is strong interaction between polyvinyl alcohol and manganese chloride. Interchain separation (R) for pristine PVA and MPVA composite films was found as 5.60 and 4.69 Ǻ , respectively, thus showing polymer chains are more compact in MPVA. Optical band gap of polyvinyl alcohol was reduced on incorporation of manganese chloride in polyvinyl alcohol to cause approximately 2.5-fold increase in optical conductivity. Refractive index of MPVA was found to be higher than that of PVA in the visible range up to 710 nm but beyond that it became lower than that of PVA. Abbe Number was decreased on incorporation of manganese chloride to PVA with concomitant increase in dispersion energy. Urbach energy (E u ) for PVA and MPVA was found to be 0.70 and 0.82 eV, respectively. AFM study reveals formation of sunflower like assembled texture at nano-scale level in MPVA film and it exhibits a higher root mean square (RMS) roughness and absorbance than those of pristine PVA film. Average oscillation wavelength (λ 0 ) was found to be close to the respective absorption edge; and MPVA showed higher oscillation strength (S 0 ) than that of PVA. POLYM. COMPOS., 40:E765-E775, 2019.POLYMER COMPOSITES-2019 FIG. 1. XRD record of (a) PVA film and (b) MPVA film; Inset shows the XRD record of manganese chloride. E766 POLYMER COMPOSITES-2019 DOI 10.1002/pc FIG. 2. FTIR spectra of (a) pure PVA and (b) MPVA films. The magnified version of spectra in the box is shown at the top.

show abstract

Section: Resultssupporting

confidence: 52%

“…The interest for polymers is established from the fact that they can afford to generate wide range of tailored properties in presence of additives [4][5][6][7][8]. Polyvinyl alcohol (PVA) is one among the numerous polymers known today.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film

Banerjee

Jain²,

Mukherjee

2018

Polymer Composites

Self Cite

View full text Add to dashboard Cite

show abstract

“…Banerjee et al [22] filled PVA with MnCl2 and obtained sunflower-like assembled pattern and a n value around 1.70 at 589 nm. Other studies were focused on doping PVA to display specific dielectric or magnetic characteristics [23][24][25][26]. One of the main advantages of PVA-based materials resides in the facile processing into components for optical devices, such as optical waveguides and optical image storage system [22].…”

Section: Introductionmentioning

confidence: 99%

Optical Dispersion Characteristics of Polyvinyl Alcohol Reinforced with a Nanoceramic Filler

Barzic¹,

Soroceanu²,

Rotaru³

et al. 2020

Mater. Plast.

View full text Add to dashboard Cite

Polymer films with high refractive index are suitable for a wide range of applications, such as optical fibers, lens and other components for optoelectronic devices. In this work, polyvinyl alcohol films were prepared from aqueous solutions, which were homogenized by ultrasonication. In order to increase the refractive index, the polymer was reinforced with barium titanate nanoparticles, which are previously ultrasonicated for an adequate dispersion inside the host polymer. The dispersion of the refractive index in visible domain was analyzed as a function of filler percent introduced in polymer, showing that an increase in sample s polarizability determined an increase in the refractive index values. The reinforcement caused a decrease of Abbe number indicating a higher light dispersion in the samples. Optical dispersion parameters were extracted from dispersion curves, revealing a reduction of band gap from 3.448 eV for pure polymer to 2.605 eV for the sample containing 2% barium titanate. Doping with the ceramic nanofiller determined a increase in optical conductivity and real part of dielectric constant as a result of appearance of new level states in the band gap. The increase of third order nonlinear optical susceptibility and nonlinear refractive index indicates the suitability of the analyzed nanocomposites for nonlinear optics applications.

show abstract

“…Suzuki and Lisfi 1-2 reported study on Co NPs embedded in PI (polyamide) and PET (Polyethylene Terephthalate). studies on Co embedded in PVA has been reported by our group earlier [3][4][5] which shows that PVA protects Cobalt (Co) from oxidation and the nanocomposite shows good magnetic property.The versatility and dependability of polyvinyl alcohol (PVA) polymer is established from the fact that they have attractive properties like lightweight, good mechanical and optical properties. Polyvinyl alcohol is also considered to be a good host material where dopants can modify its physiochemical properties.…”

Section: Introductionmentioning

confidence: 83%

Structural and magnetic study of ion beam sputtered iron thin film on polyvinyl alcohol

Joshi

Mukherjee

Banerjee

et al. 2019

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

Poly vinyl alcohol (PVA) is a versatile polymer which can act as a good host material with good film forming ability and is bio friendly. In this paper PVA film has been used as matrix for depositing Fe nanoparticles to obtain light weight and flexible polymer-metal nanocomposite film with magnetic properties. PVA was deposited on float glass substrate by solution casting method. Ion Beam sputtering method (IBS) was used to sputter Iron (Fe) onto PVA to obtain Fe Deposition with nominal thickness of 30 nm. The nanocomposite film was characterized using Grazing Incident X-ray Diffraction (GIXRD) and magneto-optical Kerr effect (MOKE). In the GIXRD pattern, the prominent peak at 19.6˚ confirms the presence of PVA crystalline peak. The desirable BCC phase responsible for the magnetic property was detected even in the iron/polymer film. The particle size of Fe nanoparticles is found to be about 6.24 nm. MOKE pattern shows well defined hysteresis loop with coercivety of the order of 20.76 Oe indicating soft ferromagnetic property of the nanocomposite film.

show abstract

Magnetic and Microstructural Studies on PVA/Co Nanocomposite Prepared by Ion Beam Sputtering Technique

Cited by 16 publications

References 23 publications

Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film

Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film

Optical Dispersion Characteristics of Polyvinyl Alcohol Reinforced with a Nanoceramic Filler

Structural and magnetic study of ion beam sputtered iron thin film on polyvinyl alcohol

Contact Info

Product

Resources

About