CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12478 > Article
Paper
15 December 2022 New method to characterize Sb segregation in InAs/GaSb superlattice
Shengwen Xie, Lili Xie, Qiyang Sun, Ruiqing Chai, Ruiming Chen, Faran Chang, Chengao Yang
Author Affiliations +
Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 1247837 (2022) https://doi.org/10.1117/12.2654812
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China
Abstract
Sb segregation is the main contributor to the interfacial asymmetry of the InAs/GaSb superlattices. We reconstructed and quantified the Sb segregation profile in the InAs/Ga(In)Sb superlattice by a one-dimensional model using the postprocessing technique on cross-sectional STM images. The model shows a totally different profile between InAs-on-Ga(In)Sb interface and Ga(In)Sb-on-InAs interface. The asymmetric compositional profile is then added to the 8-band k.p model to investigate its effects on the band structures of the superlattice. With the Sb segregation, the effective band gap of the InAs/GaSb superlattice shifts towards a shorter wavelength. We hope that our work would provide a way to accurately predict the band structures of the InAs/GaSb superlattices by considering the nonideal interfaces.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Shengwen Xie, Lili Xie, Qiyang Sun, Ruiqing Chai, Ruiming Chen, Faran Chang, and Chengao Yang "New method to characterize Sb segregation in InAs/GaSb superlattice", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 1247837 (15 December 2022); https://doi.org/10.1117/12.2654812
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 5 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Antimony
Interfaces
Superlattices
Scanning tunneling microscopy
Gallium antimonide
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top