EFFECT OF CRYO SUBSTRATE ON THERMALLY EVAPORATED PbSe MULTILAYER THIN FILMS

被引：0

作者：

Arivazhagan, V. ^{[1
]}

Rajesh, S. ^{[1
]}

机构：

[1] Karunya Univ, Thin Film Lab, Dept Phys, Coimbatore 641114, Tamil Nadu, India

来源：

CHALCOGENIDE LETTERS | 2010年 / 7卷 / 07期

关键词：

Cryo substrate; Multilayer; Thermal evaporation; PbSe;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead Selenide multilayer thin films were prepared by thermal evaporation technique at Cryo substrate temperature (0 degrees C) by successive coatings of Lead and Selenium metals. The effect of substrate temperature is studied by varying it to the ambient and also to high temperature (80 degrees C). The crystallinity improves as the deposition temperature increase and the Grains also grow in size as it is evident from the XRD patterns. The crystalline size varies from 5 to 6nm and 11 to 13 nm for the films prepared at low substrate temperature for two and five layers respectively. The result of the absorption shift towards blue clearly indicates the presence of nano particles trapped at interface of the successive Lead and Selenium layers. The films deposited at the low temperature have lower absorption edge and the calculated value of the radius of the particles is much smaller than the Bohr radius of the particle.

引用

页码：465 / 470

页数：6