Role of Fe,Mn, and Zn ions as dopants on the electrical conductivity behavior of sodium phosphate glass期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Role of Fe,Mn, and Zn ions as dopants on the electrical conductivity behavior of sodium phosphate glass

Authors:

S S Das N P Singh Vibha Srivastava P K Srivastava

Institution:

(1) Chemistry Department, D.D.U.Gorakhpur University, Gorakhpur , 273 009, India;(2) Chemistry Department, U.P. Autonomous College, Varanasi, India;(3) Electronic Materials Division, National Physical Laboratory, New Delhi, India

Abstract:

Sodium phosphate glass undoped and doped with different concentrations of chlorides of iron, manganese, and zinc were prepared by melt quenching. The synthesized glasses were characterized by elemental analysis, X-ray diffraction, infrared (IR) spectroscopy, differential scanning calorimetry, and electrical conductivity studies. The undoped sodium phosphate glass (Na₂O–P₂O₅) has low electrical conductivity σ compared to all doped glasses except for 10% FeCl₃-doped samples for which σ is found to be the lowest, and the trend is

$\sigma \left( {-{\text{ZnCl}}_2 } \right) >\sigma \left( {-{\text{MnCl}}_2 } \right) >\sigma \left( {-{\text{FeCl}}_3 } \right) >\sigma \left( {{\text{Na}}_2 {\text{O}}-{\text{P}}_2 {\text{O}}_5 } \right)$

The Na₂O–P₂O₅–5% ZnCl₂, Na₂O–P₂O₅–5% MnCl₂ and Na₂O–P₂O₅–1% FeCl₃ glassy systems yielded maximum σ values. These results are explained on the basis of changes in the structure of sodium phosphate glass matrix by the addition of Fe, Mn, and Zn ions based on IR spectra and DSC studies.

Keywords:

Doping Glasses Ionic conductivities Thermal analyses XRD

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