Photoresponse of Metal-PbTe Structures to CO2 Laser Excitation

Medžiagotyra

Vladimir KASIYAN¹  Zinovy DASHEVSKY¹  Jonas GRADAUSKAS²  Benas KUNDROTAS²  Algirdas SUŽIEDĖLIS²  Aurimas ČERŠKUS²  Steponas AŠMONTAS³  Edmundas ŠIRMULIS³  Roma RINKEVIČIENĖ⁴ 

[1] Ben-Gurion University of the Negev;Center for Physical Sciences and Technology,Vilnius Gediminas Technical University;Center for Physical Sciences and Technology;Vilnius Gediminas Technical University;

关键词: Schottky contact;    narrow band gap semiconductor;    lead telluride;    CO2 laser;    detection;   

DOI  :  10.5755/j01.ms.20.2.6222

来源: DOAJ

【 摘 要 】

We report on the investigation of photoresponse signal arising across metal-PbTe structures exposed to CO2 laser radiation. Three different metals, Al, Au, and Bi, have been used for Schottky diode-like structure fabrication. The experimental investigations of the photoresponse have been performed in temperature range from 240 K down to 92 K. The dependencies of the detected signal on the applied bias voltage and the signal decay transients were explored as well. Hot carrier effect as well as electron-hole pair generation are considered to be responsible for the photoresponse.

DOI: http://dx.doi.org/10.5755/j01.ms.20.2.6222

【 授权许可】

Unknown