Ionic conductivity of PEO-NH4ClO4 films by admittance spectroscopy:: Correlation with crystallinity and morphology

被引：23

作者：

Bhattacharyya, AJ ^{[1
]}

Middya, TR ^{[1
]}

Tarafdar, S ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Phys, Condensed Matter Phys Res Ctr, Kolkata 700032, W Bengal, India

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.60.909

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we present a study of ionic conductivity versus salt fraction for PEO-NH4ClO4 films. Films with salt concentration x in the range 0 - 0.35 (x is the weight fraction of the salt) were prepared for the study. X-ray diffraction and differential scanning calorimetry were done to detect the different species present and to estimate the crystallinity of the films. The films have a wide variety of structures and exhibit a transformation from fractal to nonfractal morphology as x is increased. We attempt a correlation of ionic conductivity with crystallinity and morphology of films with varying x and find that the fractal to compact crossover region has the highest ionic conductivity. [S0163-1829(99)12825-X].

引用

页码：909 / 915

页数：7

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