Fabrication of (Polymer Blend-magnesium Oxide) Nanoparticle and Studying their Optical Properties for Optoelectronic Applications

Abstract

Nanocomposites used in many optical devices applications. This aims to preparation of new type of polymer and study their optical properties. The polyvinyl pyrrolidone-carboxymethyl cellulose blend and magnesium oxide nanocomposites have been fabricated. The nanocomposites are prepared for different concentrations of polymer blend and magnesium oxide nanoparticles. The optical properties of nanocomposites were studied. The experimental results showed that the absorbance, absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant and optical conductivity of (PVP-CMC) blend are increased with increase of the MgO nanoparticles concentration. The transmittance and energy band gap are decreased with increase of the MgO nanoparticles concentration. The nanocomposites have high absorbance in UV region which may be used for radiation shielding application.

Fabrication of New Nanocomposites (PMMA-SPO-PS-TiC) and Studying Their Structural and Electrical Properties for Humidity Sensors

“…The D.C electrical properties of nanocomposites were measured by by using the Keithley electrometer type 2400 source mater. The dielectric properties of samples examined with frequency range from 100 Hz to 5×10 6 Hz by using LCR meter type (HIOKI 3532-50 LCR HI TESTER). The humidity sensor application of (PMMA-SPO-PS-TiC) nanocomposites was investigated.…”

“…The electrical resistance for different humidity range (30-90)% was measured by using the Keithley electrometer type2400 source mater. The D.C electrical conductivity of nanocomposites calculated for a regular body with a section has along the length (L), a constant area (A) and electrical resistance (R) by using the relation [6]:…”

Structural, A.C electrical and Optical properties of (Polyvinyl alcohol–Polyethylene Oxide–Aluminum Oxide) Nanocomposites for Piezoelectric Devices

“…In addition to;. This increase due to the creation of new levels in the band gap, lead to ease of passage carrier charges from the valence to the conduction band, as a result decreasing in the band gap and the conductivity increase [50][51][52].…”

Fabrication of new ceramics nanocomposites for solar energy storage and release

“…There are many researchers are working on the phase change materials, energy storage and release [6 -18]. The nanocomposites have numerous applications in the areas of automobiles, microelectronic packaging, injection molded products, optical integrated circuits, packaging materials, aerospace, coatings, consumer goods, adhesives, fire-retardants [19], sensor of pressure [20,21], optoelectronic and electronic applications [22], radiation shielding and bioenvironmental [22], sensors of humidity [23], antibacterial [24].…”