Studies of electronic structures of GaAs/AlAs superlattices by photoluminescence under hydrostatic pressure

Zhao-Ping Wang; Guohua Li; De Sheng Jiang; He Xiang Han; Klaus H. Ploog

doi:10.1117/12.20761

1 October 1990 Studies of electronic structures of GaAs/AlAs superlattices by photoluminescence under hydrostatic pressure

Zhao-Ping Wang, Guohua Li, De Sheng Jiang, He Xiang Han, Klaus H. Ploog

Author Affiliations +

Proceedings Volume 1283, Quantum Well and Superlattice Physics III; (1990) https://doi.org/10.1117/12.20761
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

The samples of (GaAs) (AlAs) superlattices (SLs) were grown by MIBE method on (001)-oriented semi-thsulathg GaAs substrates. The photoluminescence (PL) was measured at 77 K and under hydrostatic pressure in the range of 0- 30 Kbar. The dependence of the energy separation between conduction band Flike and X- like levels on n values was obtained from the measured results. The transition from type I to type II was observed at atmosphere in a SL of n = 1 1. It is in good agreement with the calculated result based on Kronig-Penney model. It is found that the pressure coefficient of X-like states decreases with decreasing the n values. And it is explained by a combined effects. The pressure dependence of the levels and luminescence intensities demonstrates that F-X mixing is quite weak.

Citation Download Citation

Zhao-Ping Wang, Guohua Li, De Sheng Jiang, He Xiang Han, and Klaus H. Ploog "Studies of electronic structures of GaAs/AlAs superlattices by photoluminescence under hydrostatic pressure", Proc. SPIE 1283, Quantum Well and Superlattice Physics III, (1 October 1990); https://doi.org/10.1117/12.20761

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