GaSb/GaAs quantum dots with type-II band alignments prepared by molecular beam epitaxy for device applications

Shih-Yen Lin; Wei-Hsun Lin; Chi-Che Tseng; Shu-Han Chen

doi:10.1117/12.873657

1 March 2011 GaSb/GaAs quantum dots with type-II band alignments prepared by molecular beam epitaxy for device applications

Shih-Yen Lin, Wei-Hsun Lin, Chi-Che Tseng, Shu-Han Chen

Author Affiliations +

Proceedings Volume 7947, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VIII; 79470M (2011) https://doi.org/10.1117/12.873657
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

The growth procedures and device applications of GaSb/GaAs quantum dots (QDs) are investigated in this report. The influence of As flux on the GaSb QD morphologies and optical characteristics has revealed the importance of precise Sb/As flux control during Sb post-soaking procedures after GaSb deposition. With optimized GaSb QD growth conditions and long-term Sb post soaking procedure, room-temperature operation light-emitting diodes (LEDs) and high-temperature operation quantum-dot infrared photodetectors (QDIPs) are demonstrated. The results have revealed the possibilities of type-II GaSb QDs in the applications of optical devices.

Citation Download Citation

Shih-Yen Lin, Wei-Hsun Lin, Chi-Che Tseng, and Shu-Han Chen "GaSb/GaAs quantum dots with type-II band alignments prepared by molecular beam epitaxy for device applications", Proc. SPIE 7947, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VIII, 79470M (1 March 2011); https://doi.org/10.1117/12.873657

ACCESS THE FULL ARTICLE

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