CD1-XMGXTE - A NEW PROMISING BARRIER MATERIAL TO CDTE BASED HETEROSTRUCTURES

Authors
OSSAU W ZEHNDER U KUHNHEINRICH B WAAG A LITZ T LANDWEHR G HELLMANN R GOBEL EO
Citation
W. Ossau et al., CD1-XMGXTE - A NEW PROMISING BARRIER MATERIAL TO CDTE BASED HETEROSTRUCTURES, Superlattices and microstructures, 16(1), 1994, pp. 5-10
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Superlattices and microstructures → ACNP
ISSN journal
07496036
Volume
16
Issue
1
Year of publication
1994
Pages
5 - 10
Database
ISI
SICI code
0749-6036(1994)16:1<5:C-ANPB>2.0.ZU;2-T
Abstract
We have compared the optical properties of CdTe/(CdMg)Te- and CdTe/(Cd Mn)Te- heterostructures by cw and time-resolved photoluminescence spec troscopy in the temperature range from 1.7 K up to room temperature. C dTe/(CdMg)Te-heterostructures show brighter luminescence intensities a nd longer luminescence decay times at room temperature compared to CdT e/(CdMn)Te-heterostructures. These findings are caused by a more effic ient transport of carriers from the barrier into the well and by a red uced importance of non-radiative recombination processes in CdTe/(CdMg )Te quantum wells. Consequently (CdMg)Te is a promising material for o pto-electronic devices.