INFLUENCE OF BISMUTH INCORPORATION ON THE OPTICAL-PROPERTIES OF A-SE FILMS

被引：7

作者：

BETTSTELLER, R

WITTE, H

HERMS, W

FREISTEDT, H

机构：

[1] Institut für Experimentelle Physik, Technische Universität Otto von Guericke Magdeburg, 39016 Magdeburg

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 87卷 / 09期

关键词：

Amorphous selenium films - Bismuth incorporation - Optical gap - Optical transmission measurements - Spectral range;

D O I：

10.1016/0038-1098(93)90409-G

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Optical transmission measurements on a-Se1-xBix films were performed in spectral range from 550 to 2500 nm. A drastic decrease of the TAUC- gap, E04- gap and of the slopes of the TAUC- plots B1/2 was obtained above a Bismuth concentration of 0.2 at%, i.e. the Bismuth incorporation caused a decrease of the optical gap and a flattening of the tail states. It is assumed that strong distortions within the chain like structure of a-Se films appear with increased bonding between Se and Bi.

引用

页码：763 / 765

页数：3

共 9 条

[1] OPTICAL-ENERGY GAP OF AMORPHOUS SELENIUM - EFFECT OF ANNEALING [J].