Improving the optical and dielectric properties of PVA matrix with nano-ZnSe: Synthesis and Characterization

  Jobin Job Mathen,  Ginson P. Joseph,  J. Madhavan

Abstract— ZnSe/Poly (vinyl alcohol) (PVA) composite membranes with 30 – 40 µm thicknesses were prepared by ultra-sonication technique at different weight percentages (0-4%) of ZnSe nanoparticles. The structural characteristic of synthesized ZnSe was examined by X-ray analysis. The surface morphology and the formation of composite membrane were displayed in SEM micrographs. Important dielectric parameters which include dielectric constant, dielectric loss and electric modulus were exemplified and three different relaxation mechanisms were identified during heat treatment. The dielectric constant was increased from (k = 7.02, 100Hz, 300C) to (k = 16.02, 100Hz, 1200C) and the composite films exhibited a higher energy storage efficiency, that is an increase of 49.7% (at 1MHz) was noticed in the case of 4%ZnSe/PVA. The index of refraction and optical conductivity could be enhanced with the inclusion of ZnSe nanoparticles within percolation threshold. Thus, these high n and k–ZnSe/PVA nano composites are potential flexible high-performance dielectric materials for electronic devices.

Keywords- ZnSe, electric modulus, index of refraction, dielectric material

Unique Identification Number - IJEDR1603167
Page Number(s) - 1054-1062
Pubished in - Volume 4 | Issue 3 | September 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Jobin Job Mathen,  Ginson P. Joseph,  J. Madhavan,   "Improving the optical and dielectric properties of PVA matrix with nano-ZnSe: Synthesis and Characterization", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 3, pp.1054-1062, September 2016, Available at :http://www.ijedr.org/papers/IJEDR1603167.pdf