Room temperature photoreflectance investigation of undoped and doped GaAs/AlGaAs quantum well structures

Lev P. Avakyants; Pavel Y. Bokov; Anatoly V. Chervyakov; Galib B. Galiev; Evgeny A. Klimov

doi:10.1117/12.562731

28 May 2004 Room temperature photoreflectance investigation of undoped and doped GaAs/AlGaAs quantum well structures

Lev P. Avakyants, Pavel Y. Bokov, Anatoly V. Chervyakov, Galib B. Galiev, Evgeny A. Klimov

Proceedings Volume 5401, Micro- and Nanoelectronics 2003; (2004) https://doi.org/10.1117/12.562731
Event: Micro- and Nanoelectronics 2003, 2003, Zvenigorod, Russian Federation

Abstract

The room temperature photoreflectance (PR) investigation of optical transitions in Al_0.2Ga_0.8As/GaAs/Al_0.2Ga_0.8As single and coupled quantum wells is presented. The structures were grown by molecular beam epitaxy for different barrier thickness and quantum well width. Three kinds of spectral features were observed in PR spectra: sharp line connected with GaAs band gap (1.42 eV), Frantz-Keldysh oscillations near Al_0.2Ga_0.8As band gap (1.71 eV) and features originated from electron-hole transitions in quantum well. The energies of observed transitions have been compared with the results of envelope function calculations.

Citation Download Citation

Lev P. Avakyants, Pavel Y. Bokov, Anatoly V. Chervyakov, Galib B. Galiev, and Evgeny A. Klimov "Room temperature photoreflectance investigation of undoped and doped GaAs/AlGaAs quantum well structures", Proc. SPIE 5401, Micro- and Nanoelectronics 2003, (28 May 2004); https://doi.org/10.1117/12.562731

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