Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-p4zth Total loading time: 0.267 Render date: 2021-07-31T23:31:48.167Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Optical Absorption in ZnSe-GaAs Heterovalent Quantum Structures

Published online by Cambridge University Press:  10 February 2011

Mitsuru Funato
Affiliation:
Department of Electronic Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
Shizuo Fujita
Affiliation:
Department of Electronic Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
Shigeo Fujita
Affiliation:
Department of Electronic Science and Engineering, Kyoto University, Kyoto 606-8501, Japan
Get access

Abstract

ZnSe-GaAs(001) heterovalent quantum structures, multiple quantum wells (MQWs), were fabricated. Since the band offsets in this heterovalent heterostructure are controllable, different offsets can artificially be put at both sides of the GaAs wells, which may lead to modification of the electronic properties of the MQWs. This hypothesis was examined by the optical absorption measurement. Consequently, by changing the valence band offset at the GaAs-on-ZnSe interface from 0.6 to 1.1 eV, while keeping that at ZnSe-on- GaAs constant at 0.6 eV, the absorption edge energies of the MQWs shifted from 1.43 to 1.37 eV. This indicates the presence of an internal electric field and the capability of controlling the electronic properties of heterovalent MQWs with the completely same structural parameters. The numerical analyses of the Poisson and Schrddinger equations well explain the trend of this experimental result.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Nicolini, R., Vanzetti, L., Mula, G., Bratina, G., Sorba, L., Franciosi, A., Peressi, M., Baroni, S., Resta, R., Baldereschi, A., Angelo, J. E. and Gerrich, W. W., Phys. Rev. Lett. 72, 294 (1994).CrossRefGoogle Scholar
2. Kley, A. and Neugebauer, J., Phys. Rev. B50, 8616 (1994).CrossRefGoogle Scholar
3. Dandrea, R. G., Froyen, S. and Zunger, A., Phys. Rev. B42, 3213 (1990).CrossRefGoogle Scholar
4. Kunc, K. and Martin, R. M., Phys. Rev. B24, 3445 (1981).CrossRefGoogle Scholar
5. Funato, M., Aoki, S., Fujita, Sz., and Fujita, Sg., J. Appl. Phys. 82, 2984 (1997).CrossRefGoogle Scholar
6. Funato, M., Aoki, S., Fujita, Sz., and Fujita, Sg., J. Appl. Phys. (to be published in vol. 85, no. 3).Google Scholar
7. Grant, R. W., Waldrop, J. R., Kowalczyk, S. P. and Kraut, E. A., J. Vac. Sci. Technol. B3, 1295 (1985).CrossRefGoogle Scholar
8. Dahmen, M., Rau, U., Kawanaka, M., Sone, J., and Werner, J. H., Appl. Phys. Lett. 62, 261 (1993).CrossRefGoogle Scholar
9. In this paper, a (material A)-on-(material B) structure is denoted as A/B.Google Scholar
10. Concerning the influence of an electric field on the energy states in a QW, see for example, Miller, D. A. B., Chemla, D. S., Damen, T. C., Gossard, A. C., Wiegmann, W., Wood, T. H., and Burrus, C. A., Phys. Rev. B32, 1043 (1985).CrossRefGoogle Scholar
11. Ehrenberg, W., Proc. Phys. Soc. A63, 75 (1950).CrossRefGoogle Scholar
12. Bastard, G., Mendez, E. E., Chang, L. L., and Esaki, L., Phys. Rev. B28, 3241 (1983).CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Optical Absorption in ZnSe-GaAs Heterovalent Quantum Structures
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Optical Absorption in ZnSe-GaAs Heterovalent Quantum Structures
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Optical Absorption in ZnSe-GaAs Heterovalent Quantum Structures
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *