
The Library
The effect of strained confinement layers in InP self-assembled quantum dot material
Tools
Elliott, Stella N, Smowton, Peter M, Krysa, Andrey B and Beanland, R. (2012) The effect of strained confinement layers in InP self-assembled quantum dot material. Semiconductor Science and Technology, Volume 27 (Number 9). Article number 094008. doi:10.1088/0268-1242/27/9/094008 ISSN 0268-1242.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1088/0268-1242/27/9/094008
Abstract
We investigated a series of self-assembled InP quantum dot structures. The Ga concentrations of the GaxIn(1−x)P upper confining quantum well layers were varied from x = 0.43 to x = 0.58, centering on a strain compensated structure. All were grown on a (Al0.3Ga0.7)0.52In0.48P lower confinement layer. Across this range of composition the dot emission wavelength changed approximately linearly with the Ga fraction. Of the compositions used, x = 0.54 gave the best defined and largest magnitude dot absorption spectrum, corresponding to the largest dot density. This resulted in the lowest overall threshold current density with a reduced threshold current temperature sensitivity at room temperature and above. These results are confirmed over two growth series.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Semiconductor Science and Technology | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0268-1242 | ||||
Official Date: | September 2012 | ||||
Dates: |
|
||||
Volume: | Volume 27 | ||||
Number: | Number 9 | ||||
Page Range: | Article number 094008 | ||||
DOI: | 10.1088/0268-1242/27/9/094008 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | EP/F006683 |
Request changes or add full text files to a record
Repository staff actions (login required)
![]() |
View Item |