Hysteresis-like behaviour of the thermoelectric voltage in photovoltaic materials

被引：12

作者：

Ferrer, I. J. ^{[1
]}

Diaz-Chao, P. ^{[1
]}

Pascual, A. ^{[1
]}

Sánchez, C. ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Fac Ciencias, Dept Fis Mat, E-28049 Madrid, Spain

来源：

THIN SOLID FILMS | 2006年 / 511卷

关键词：

hysteresis; thermoelectric; thermovoltage; FeS2;

D O I：

10.1016/j.tsf.2005.12.095

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Some semiconducting thin films (p and n FeS2, PdS, CoS2, etc.) show an hysteresis-like loop on accomplishing measurements of the Seebeck coefficient. In these films one obtains two different values of the thermovoltage for the same thermal gradient applied to the sample. It has been found that the measured thermovoltage is the superposition of a linear component (proportional to the thermal gradient) and a non-linear one (proportional to the time-derivative of the thermal gradient). The linear component allows us to define a constant Seebeck coefficient, S, of the samples. The non-linear component appears to be higher for larger values of S. Although no explanation has been found for this behaviour, several possible underlying phenomena are pointed out. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：177 / 181

页数：5