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<strong>Structural, DC Conductivity and Electric Modulus Studies of Polypyrrole Praseodymium Manganite Nanocomposites</strong>

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Title Statement <strong>Structural, DC Conductivity and Electric Modulus Studies of Polypyrrole Praseodymium Manganite Nanocomposites</strong>
 
Added Entry - Uncontrolled Name Bharathi, Meti ; Dr Ambedkar Insitution of Technology
Anuradha, K N
Murugendrappa, M V
No
 
Uncontrolled Index Term Polypyrrole/Praseodymium Manganite; Nanocomposites; DC conductivity; Electric modulus
 
Summary, etc. Praseodymium Calcium Manganite (PCM) nanoparticles were synthesized by sol-gel method. Polypyrrole (PPy) and polypyrrole–praseodymium manganite nanocomposites (PPy/PCM) were synthesized by in-situ chemical polymerization method. Transmission electron microscope (TEM) confirmed good crystallinity with 42-63 nm average particle size. Scanning electron microscope (SEM) exhibited well-defined core structure of PPy and the PPy/PCM nanocomposites. X-ray diffraction (XRD) patterns of PPy showed amorphous nature and those of composites showed semicrystalline nature. UV-Vis spectroscopy was used to study the energy band gap for all the nanocomposites and hence they may find a place in wide band gap applications. The UV (231nm) and visible (363 nm and 377 nm) emissions were observed from the spectrum. DC conductivity was studied from 473 to 303 K for all the nanocomposites and found that conduction is of semiconductor type. Analysis of electric modulus confirmed the contribution from grain and grain boundary, non-Debye type relaxation and dc conductivity obeyed Correlated Barrier Hopping (CBH) model.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2023-03-14 17:05:08
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/70065
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 61, ##issue.no## 3 (2023): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/70065/465632951
http://op.niscair.res.in/index.php/IJPAP/article/download/70065/0
 
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