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<span>Optical, structural and thermal properties of hybrid PVA/CaAl2ZrO6 nanocomposite films</span><br />

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Title Statement <span>Optical, structural and thermal properties of hybrid PVA/CaAl2ZrO6 nanocomposite films</span><br />
 
Added Entry - Uncontrolled Name Maheshwarappa, Gayitri Hebbur; JSSS&TU , manasa gangotri , Mysore-570006
Al-Gunaid, Murad ; Department of Polymer Science and Technology, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysore 570006, India
Siddaramaiah; Department of Chemistry, Faculty of Education, Thamar University, Dhamar 13020,Yemen
Prakash, Akkanagowda Patel Gnana; Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570006, India
no funding
 
Uncontrolled Index Term electrical/electronics engineering
CaAl2ZrO6, Refractive index, Tauc’s plot, Optical conductivity, Tg
 
Summary, etc. <p>This report focuses on fabrication, characterization, and fundamental optical, structural and thermal properties of PVA/ calcium aluminum doped zirconate (CaAl<sub>2</sub>ZrO<sub>6</sub>) nanocomposites (NCs) films. The nanocomposite films of polyvinylalcohol (PVA) with different amounts viz., 2, 4, 6 and 8 wt% of calcium aluminum zirconate (CaAl<sub>2</sub>ZrO<sub>6</sub>) have been fabricated using solvent casting technique. The Nanocomposite films structural and morphology were investigated by X-ray diffraction, FTIR and scanning electron microscopy, The optical properties were studied using  UV-vis spectroscopy. Thermal studies were evaluated by differential scanning calorimetry (DSC). An optical study reveals an obvious change in the electronic band structure leading to a significant reduction in optical band gaps. The measured refractive index (RI) depends on the volume fraction of CaAl<sub>2</sub>ZrO<sub>6</sub> nanofiller and the result indicates that a substantial increase of RI values from 1.22 to 2.22 at wave length 300 nm. The dielectric studies, optical conductivity measurements and Urbach energy analysis also supports the dopant dependent optical property, tuning of PVA/ CaAl<sub>2</sub>ZrO<sub>6</sub> nanocomposite films to enable effective material property engineering to suit specified application requirements.</p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2021-02-04 14:22:38
 
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http://op.niscair.res.in/index.php/IJEMS/article/view/26781
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 27, ##issue.no## 2 (2020): IJEMS- April 2020
 
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