scholarly journals Optical properties of Xanthene Dye Doped Polymer Blend

2019 ◽  
Vol 1294 ◽  
pp. 022027
Author(s):  
Nadia Ali Abed ◽  
Asrar Abdulmunem Saeed ◽  
Farah Jawad Kadhum
Keyword(s):  
Optical Properties ◽  
Polymer Blend ◽  
Doped Polymer

The WS2 dependence on the elasticity and optical band gap energies of swollen PAAm composites

2020 ◽  
Vol 55 (1) ◽  
pp. 71-76
Author(s):  
Gülşen Akın Evingür ◽  
Nafia Alara Sağlam ◽  
Büşra Çimen ◽  
Bengü Özuğur Uysal ◽  
Önder Pekcan
Keyword(s):  
Optical Properties ◽  
Band Gap ◽  
Polymer Composites ◽  
Optical Band Gap ◽  
Electronic Devices ◽  
Band Gap Energy ◽  
Tungsten Disulfide ◽  
High Electron ◽  
New Generation ◽  
Doped Polymer

New generation nano-filler polymer composites have many applications including biomedical, electronic and maritime related applications because of their mechanical, electronic and optical properties. The properties of composites were investigated as a function of nano-filler content. Among these, tungsten disulfide (WS2) has the potential to be used as a component in electronic devices owing to its high electron mobility and easily tunable optical band gap energy. Tungsten disulfide (WS2)- Polyacrylamide (PAAm) composite was prepared using free radical co-polymerization and wet laboratory methods with WS2 content. Composites were characterized for mechanical and optical properties using an Elasticity Instrument and UV-vis Spectrophotometer, respectively. Elastic modulus was modeled by a statistical thermodynamics model. Tauc’s and Urbach’s Tail model for direct transition were used to model for the optical band gap. In this study, the swelling and WS2 effect on the optical band gap and elasticity of WS2 - PAAm composites were investigated. It was observed that the elasticity presented a reversed behavior of optical band gap energies with respect to WS2 content. For the applications of nano-filler doped polymer composites in flexible electronic devices, WS2 content strongly influences the mechanical and optical properties.

scholarly journals Plasmon-enhanced diffraction in nanoparticle gratings fabricated by in situ photo-reduction of gold chloride doped polymer thin films by laser interference patterning

2017 ◽  
Vol 5 (14) ◽  
pp. 3553-3560 ◽  
Author(s):  
E. Nadal ◽  
N. Barros ◽  
H. Glénat ◽  
J. Laverdant ◽  
D. S. Schmool ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Polymer Thin Films ◽  
Gold Chloride ◽  
Laser Interference ◽  
Plasmonic Nanoparticle ◽  
Novel Method ◽  
Doped Polymer

This is a novel method for fabricating plasmonic nanoparticle gratings with original optical properties induced by laser photo-reduction of gold precursors in PVA thin films.

scholarly journals Structural, Thermal and Optical Properties of PMMA, PEO and PMMA/PEO/LiClO4 Polymer Electrolyte Blends

2017 ◽  
Vol 14 (2) ◽  
pp. 123-127 ◽  
Author(s):  
M. Ravindar Reddy ◽  
M. Jaipal Reddy ◽  
A. R. Subrahmanyam
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Polymer Blend ◽  
Xrd Analysis ◽  
Pure Pmma ◽  
Scanning Calorimetry ◽  
Casting Technique ◽  
Interaction Interface ◽  
Solution Casting Technique ◽  
Polymer Blend Electrolyte

This paper is a report of a study conducted on Structural, thermal and optical Properties of pure PMMA, pure PEO and PMMA-PEO-LiClO4 polymer blend electrolyte thin films. These films were prepared using solution casting technique and characterized by X-ray Diffractometer (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC). XRD analysis Observations confirmed that amorphous, crystalline and semi crystalline nature of pure PMMA, pure PEO and PMMA-PEO-LiClO4 polymer blend electrolyte thin films the SEM micrographs suggest that the surface morphology of pure PEO changes from smooth to rough when PMMA and LiClO4 added to PEO polymer, which shows the interaction/ interface between the two polymers and polymer blend electrolyte due to cross – linking. Glass transition (Tg) and melting temperatures (Tm) of pure PMMA, pure PEO and PMMA-PEO-LiClO4 polymer blend electrolyte thin films were confirmed by DSC analysis. FTIR spectra confirmed that complex formation and interaction among PMMA, PEO polymers and LiClO4 salt.

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