A COMPARISON OF PICTS WITH DIRECT MEASUREMENTS OF NONEXPONENTIAL CURRENT TRANSIENTS ON SI-GAAS

被引：11

作者：

HLINOMAZ, P

SMID, V

KRISTOFIK, J

MARES, JJ

HUBIK, P

ZEMAN, J

机构：

[1] Institute of Physics, Czechoslovak Acad. Sciences, 180 40 Prague 8

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 06期

关键词：

D O I：

10.1016/0038-1098(91)90226-L

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We demonstrate a good correspondence of the results obtained by PICTS and by fitting isothermal current transients when a multiexponential form with well separated exponentials can be used for a description of the transients and at the same time the PICTS spectra give a linear Arrhenius plot. The results are also supported by TSC measurements below the room temperature. All the measurements have been performed on samples with a three electrode configuration which makes it possible to separate surface and bulk related signals. It has turned out that the negative peak observed on our samples in the PICTS spectra above the room temperature cannot be explained by surface related phenomena only. This is to our knowledge the first direct experimental proof of the nature of the negative peak which has recently been a subject of discussion in the literature.

引用

页码：409 / 413

页数：5

共 13 条

[1] INVESTIGATION OF DEEP LEVELS IN HIGH-RESISTIVITY BULK MATERIALS BY PHOTOINDUCED CURRENT TRANSIENT SPECTROSCOPY .1. REVIEW AND ANALYSIS OF SOME BASIC PROBLEMS [J].