Effect of Camphor Sulfonic Acid Doping on Structural, Morphological, Optical and Electrical Transport Properties on Polyaniline-ZnO Nanocomposites

Patil, S. L.; Chougule, M. A.; Pawar, S. G.; Şen, Sinan; Patil, V. B.

doi:10.4236/snl.2012.23009

Cited by 52 publications

(28 citation statements)

References 37 publications

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“…However, amorphous materials are not really collection of atoms with random distribution. For instance, the X‐ray and neutron diffraction pattern from amorphous show variations of the intensity with the scattering angle that form broad peaks but indicating as well, that amorphous domain has some periodicity . Metallic Ni usually can exist in FCC and hcp crystalline form structures, while Ni powders commonly are ferromagnetic with FCC crystal structure; therefore, peaks ascribed to NiNPs have large width at half maximum and shallow low amplitudes (characteristic of FCC crystal structure) …”

Section: X‐ray Diffraction Analysismentioning

confidence: 99%

Optical and structural properties of (PANI‐CSA‐PMMA)/NiNPs nanocomposites thin films for organic optical filters

Jum’h

Mousa

Mhawish

et al. 2019

J of Applied Polymer Sci

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Synthesized nanocomposite of protonated polyaniline with camphorsulfonic acid (PANI-CSA) hosted in poly(methyl methacrylate) (PMMA) and incorporated with nickel nanoparticles (NiNPs) were coated as thin films on activated fused silica substrates using oxygen-plasma and spin coating techniques. Weight percent ratios of 0, 10, 20, 30, 60, and 90% of NiNPs with respect to PANI-CSA thin films have been studied in order to investigate the optical, structural, and morphological properties of (PANI-CSA-PMMA)/ NiNPs by employing UV-Vis spectrometer, XRD, scanning electron microscopy (SEM), contact angle (CA) goniometry, impedance analyzer, and thermogravimetric analysis. Deduced refractive indices (n) from UV-Vis data were in the range from 1.5 up to 2.2. SEM micrographs show the typical crystalline structure of PANI was vanishing gradually with increasing the NiNPs content. Optical properties such as refractive index (n), extinction coefficient (k), absorption coefficient (α) as well as the band-gap energies (E g ) were mathematically deduced throughout the experimental transmittance and absorbance UV-Vis spectra. Calculated refractive indices (n) were in the range from 1.5 up to 2.2. Optical band-gap energies decrease in a monoexponential decay for samples up to 60% NiNPs/PANI-CSA, samples with 90% concentration had substantial drop in its value due to the NiNPs percolations. The incorporation with NiNPs leads to the development of a new morphological states (sheet-like heterostructure) which start to be obvious at 30%, at this concentration the CA was maxima (54 ), at this concentration and the crystallite size are maximum and the CA was maximum (highest hydrophobicity).

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Section: X‐ray Diffraction Analysismentioning

confidence: 99%

Optical and structural properties of (PANI‐CSA‐PMMA)/NiNPs nanocomposites thin films for organic optical filters

Jum’h

Mousa

Mhawish

et al. 2019

J of Applied Polymer Sci

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show abstract

“…To improve and extend the functions of the conducting organic materials, inorganic materials such as metals and metal oxides are often incorporated to form multifunctionalized composites for various applications in the fields of electronics, sensors, catalysis, energy, electromagnetic interference shielding, and biomedicine [7]. The inorganic fillers at nanoscale exhibit high surface to volume ratio and thus are expected to modify the electrical, optical, thermal, and dielectric properties of polymer drastically [8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Photoconductivity Studies on Poly(2-chloroaniline) and Poly(2-chloroaniline)/CuO Nanocomposites

Linganathan¹,

Sundararajan

Samuel³

2014

Journal of Composites

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The poly(2-chloroaniline) and poly(2-chloroaniline)/CuO nanocomposites with various weight percentages (5%, 10%, 15%, 20%, and 25%) were synthesized by in situ chemical oxidative polymerization method using ammonium per sulphate (oxidant), HCl (dopant), and dodecyl benzene sulphonic acid as a surfactant at 0°C. The formation of polymer and its composites was confirmed by FTIR and UV-Visible spectroscopy. The SEM and X-ray diffraction studies clearly indicate the uniform dispersion of CuO nanoparticles into the polymer matrix. The thermal stability of the polymer and its composites increased with increase in the percentage of CuO nanoparticles. The polymer and composites exhibit fluorescence property and hence can be used in the light emitting diodes. The current voltage (I-V) curves clearly illustrate the enhanced conductivity on light exposure compared to the dark current. The conductivity of the polymer increased with increase in the percentage of CuO nanoparticles. Poly(2-chloroaniline)/CuO nanocomposites with 25% of CuO show a maximum conductivity of 2.05×10-4 S cm−1. The composites synthesized behave as organic metals due to their semiconducting nature.

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“…Position of various peaks corresponding to different vibrations [25][26][27][28] vary with change in dopant concentra− tion and are summarized in Table 4. …”

Section: Ftirmentioning

confidence: 99%

Enhancement in UV emission and band gap by Fe doping in ZnO thin films

Srivastava

Kumar

Khare

2014

Opto-Electronics Review

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Enhancement of the optical band gap of ZnO from 3.14 to 3.29 eV has been obtained using Fe dopant. Undoped and doped ZnO films are deposited by sol-gel spin coating. XRD patterns indicate polycrystalline nature and hexagonal wurtzite structure of Zn1−xFexO films. EDX analysis confirms the presence of iron dopant. The photoluminescence spectra show an ultraviolet emission peak at 398 nm (NBE emission) and defect emission peak at 485 nm. Intensity of the NBE emission is much higher for the doped samples with its ratio to defect emission intensity highest for 2 at. %doping. The NBE emission shifts to higher energy with increasing dopant concentration in a manner similar to that exhibited by the band gap. Surface morphology has been studied using FESEM.

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Effect of Camphor Sulfonic Acid Doping on Structural, Morphological, Optical and Electrical Transport Properties on Polyaniline-ZnO Nanocomposites

Cited by 52 publications

References 37 publications

Optical and structural properties of (PANI‐CSA‐PMMA)/NiNPs nanocomposites thin films for organic optical filters

Optical and structural properties of (PANI‐CSA‐PMMA)/NiNPs nanocomposites thin films for organic optical filters

Synthesis, Characterization, and Photoconductivity Studies on Poly(2-chloroaniline) and Poly(2-chloroaniline)/CuO Nanocomposites

Enhancement in UV emission and band gap by Fe doping in ZnO thin films

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