ELECTRIC AND DIELECTRIC-PROPERTIES OF SOLUTION GAS INTERFACE-GROWN PBS FILMS

被引：1

作者：

NIKAM, PS ^{[1
]}

PATHAN, KA ^{[1
]}

机构：

[1] MSG COLL,DEPT PHYS,MALEGAON 423105,INDIA

来源：

BULLETIN OF MATERIALS SCIENCE | 1994年 / 17卷 / 03期

关键词：

IV CHARACTERISTICS; SPACE-CHARGE-LIMITED CURRENT; CAPACITANCE; LOSS FACTOR; RELAXATION EFFECT; DIPOLAR ORIENTATION; INTERFACIAL POLARIZATION;

D O I：

10.1007/BF02745176

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric properties and I-V characteristics of solution-gas interface-formed PbS thin-film capacitors (Al/PbS/Al) of various thicknesses have been studied in the frequency range 10-10(6) Hz at various temperatures (300-443 K). Current-voltage (I-V) characteristics show space-charge-limited conduction. Dielectric constant (epsilon) increases with increasing film thickness and temperature and decreases with increase of frequency. The loss factor (tan delta) peaks observed in tan delta vs frequency and tan delta vs temperature reveal relaxation effect from dipolar orientation. These maxima shift to higher-temperature region with increasing frequency. The large increase in capacitance (C) and dielectric constant (epsilon) towards low-frequency (f) region indicates the possibility of an interfacial polarization mechanism in this region.

引用

页码：245 / 252

页数：8

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